From 89f7be34e893b49df602e31279f8056d06c8a28f Mon Sep 17 00:00:00 2001
From: Zanger67/leetcode <Zanger67[bot]@Zanger67.github.io>
Date: Sun, 21 Jul 2024 06:52:55 +0000
Subject: [PATCH] Updated markdown files

---
 .readme_updater                             |   2 +-
 README.md                                   | 582 ++++++++++----------
 markdowns/Daily_Questions.md                |  64 +--
 markdowns/Easy.md                           | 565 +++++--------------
 markdowns/Medium.md                         | 295 +++++++++-
 markdowns/Questions_By_Code_Length.md       | 582 ++++++++++----------
 markdowns/Questions_By_Recent.md            | 582 ++++++++++----------
 markdowns/by_topic/Array.md                 | 276 +++++-----
 markdowns/by_topic/Backtracking.md          |  26 +-
 markdowns/by_topic/Binary Search Tree.md    |  22 +-
 markdowns/by_topic/Binary Search.md         |  24 +-
 markdowns/by_topic/Binary Tree.md           | 102 ++--
 markdowns/by_topic/Bit Manipulation.md      |  36 +-
 markdowns/by_topic/Brainteaser.md           |   2 +-
 markdowns/by_topic/Breadth-First Search.md  |  76 +--
 markdowns/by_topic/Bucket Sort.md           |   6 +-
 markdowns/by_topic/Combinatorics.md         |   6 +-
 markdowns/by_topic/Counting.md              |  26 +-
 markdowns/by_topic/Data Stream.md           |   2 +-
 markdowns/by_topic/Database.md              |   8 +-
 markdowns/by_topic/Depth-First Search.md    | 116 ++--
 markdowns/by_topic/Design.md                |  44 +-
 markdowns/by_topic/Divide and Conquer.md    |   8 +-
 markdowns/by_topic/Doubly-Linked List.md    |   6 +-
 markdowns/by_topic/Dynamic Programming.md   |  36 +-
 markdowns/by_topic/Game Theory.md           |   4 +-
 markdowns/by_topic/Geometry.md              |   2 +-
 markdowns/by_topic/Graph.md                 |   8 +-
 markdowns/by_topic/Greedy.md                |  54 +-
 markdowns/by_topic/Hash Function.md         |   6 +-
 markdowns/by_topic/Hash Table.md            | 146 ++---
 markdowns/by_topic/Heap (Priority Queue).md |  20 +-
 markdowns/by_topic/Interactive.md           |   2 +-
 markdowns/by_topic/Iterator.md              |   6 +-
 markdowns/by_topic/Linked List.md           |  68 +--
 markdowns/by_topic/Math.md                  |  66 +--
 markdowns/by_topic/Matrix.md                |  54 +-
 markdowns/by_topic/Monotonic Queue.md       |   4 +-
 markdowns/by_topic/Monotonic Stack.md       |  16 +-
 markdowns/by_topic/Number Theory.md         |   2 +-
 markdowns/by_topic/Ordered Set.md           |   2 +-
 markdowns/by_topic/Prefix Sum.md            |  20 +-
 markdowns/by_topic/Queue.md                 |  16 +-
 markdowns/by_topic/Quickselect.md           |   4 +-
 markdowns/by_topic/Randomized.md            |   6 +-
 markdowns/by_topic/Recursion.md             |  20 +-
 markdowns/by_topic/Reservoir Sampling.md    |   2 +-
 markdowns/by_topic/Rolling Hash.md          |   4 +-
 markdowns/by_topic/Shortest Path.md         |   2 +-
 markdowns/by_topic/Simulation.md            |  40 +-
 markdowns/by_topic/Sliding Window.md        |  22 +-
 markdowns/by_topic/Sorting.md               |  80 +--
 markdowns/by_topic/Stack.md                 |  70 +--
 markdowns/by_topic/String Matching.md       |   4 +-
 markdowns/by_topic/String.md                | 126 ++---
 markdowns/by_topic/Suffix Array.md          |   2 +-
 markdowns/by_topic/Topological Sort.md      |   2 +-
 markdowns/by_topic/Tree.md                  | 112 ++--
 markdowns/by_topic/Trie.md                  |  30 +-
 markdowns/by_topic/Two Pointers.md          |  60 +-
 markdowns/by_topic/Union Find.md            |  14 +-
 61 files changed, 2296 insertions(+), 2294 deletions(-)

diff --git a/.readme_updater b/.readme_updater
index b590abc0..4414b278 160000
--- a/.readme_updater
+++ b/.readme_updater
@@ -1 +1 @@
-Subproject commit b590abc0510469555fdc38e86d157da5fad3a86b
+Subproject commit 4414b27821b89805ec795a5dab922ee16fe742fe
diff --git a/README.md b/README.md
index 70e09226..fb5b5ea5 100644
--- a/README.md
+++ b/README.md
@@ -39,156 +39,156 @@ This repo is a collection of my LeetCode solutions, primarily written in Python,
 |    # | Title                                                                                                                                                                                    | Level   | Cats           | Solution                                                                                                     | Languages                        |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:-------------------------------------------------------------------------------------------------------------|:---------------------------------|
 |    1 | [Two Sum](<https://leetcode.com/problems/two-sum>)                                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_1. Two Sum.md>)                                                                       | java, py                         |
-|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                                       | Easy    | N150           | [solution](<markdowns/_2. Add Two Numbers.md>)                                                               | java                             |
-|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Easy    | B75, N150      | [solution](<markdowns/_3. Longest Substring Without Repeating Characters.md>)                                | java                             |
-|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                                           | Easy    | B75, N150      | [solution](<markdowns/_5. Longest Palindromic Substring.md>)                                                 | py                               |
-|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                                       | Easy    | N150           | [solution](<markdowns/_7. Reverse Integer.md>)                                                               | py                               |
-|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                                       | Easy    |                | [solution](<markdowns/_8. String to Integer (atoi).md>)                                                      | py                               |
+|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                                       | Medium  | N150           | [solution](<markdowns/_2. Add Two Numbers.md>)                                                               | java                             |
+|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Medium  | B75, N150      | [solution](<markdowns/_3. Longest Substring Without Repeating Characters.md>)                                | java                             |
+|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                                           | Medium  | B75, N150      | [solution](<markdowns/_5. Longest Palindromic Substring.md>)                                                 | py                               |
+|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                                       | Medium  | N150           | [solution](<markdowns/_7. Reverse Integer.md>)                                                               | py                               |
+|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                                       | Medium  |                | [solution](<markdowns/_8. String to Integer (atoi).md>)                                                      | py                               |
 |    9 | [Palindrome Number](<https://leetcode.com/problems/palindrome-number>)                                                                                                                   | Easy    |                | [solution](<markdowns/_9. Palindrome Number.md>)                                                             | java                             |
 |   14 | [Longest Common Prefix](<https://leetcode.com/problems/longest-common-prefix>)                                                                                                           | Easy    |                | [solution](<markdowns/_14. Longest Common Prefix.md>)                                                        | java                             |
-|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                                           | Easy    | N150           | [solution](<markdowns/_17. Letter Combinations of a Phone Number.md>)                                        | java                             |
-|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                                     | Easy    | B75, N150      | [solution](<markdowns/_19. Remove Nth Node From End of List.md>)                                             | c, java, py                      |
+|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                                           | Medium  | N150           | [solution](<markdowns/_17. Letter Combinations of a Phone Number.md>)                                        | java                             |
+|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                                     | Medium  | B75, N150      | [solution](<markdowns/_19. Remove Nth Node From End of List.md>)                                             | c, java, py                      |
 |   20 | [Valid Parentheses](<https://leetcode.com/problems/valid-parentheses>)                                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_20. Valid Parentheses.md>)                                                            | java                             |
 |   21 | [Merge Two Sorted Lists](<https://leetcode.com/problems/merge-two-sorted-lists>)                                                                                                         | Easy    | B75, N150      | [solution](<markdowns/_21. Merge Two Sorted Lists.md>)                                                       | java                             |
-|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                                             | Easy    | N150           | [solution](<markdowns/_22. Generate Parentheses.md>)                                                         | py                               |
+|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                                             | Medium  | N150           | [solution](<markdowns/_22. Generate Parentheses.md>)                                                         | py                               |
 |   23 | [Merge k Sorted Lists](<https://leetcode.com/problems/merge-k-sorted-lists>)                                                                                                             | Hard    | B75, N150      | [solution](<markdowns/_23. Merge k Sorted Lists.md>)                                                         | py                               |
-|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                               | Easy    |                | [solution](<markdowns/_24. Swap Nodes in Pairs.md>)                                                          | c                                |
+|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                               | Medium  |                | [solution](<markdowns/_24. Swap Nodes in Pairs.md>)                                                          | c                                |
 |   25 | [Reverse Nodes in k-Group](<https://leetcode.com/problems/reverse-nodes-in-k-group>)                                                                                                     | Hard    | N150           | [solution](<markdowns/_25. Reverse Nodes in k-Group.md>)                                                     | c                                |
 |   26 | [Remove Duplicates from Sorted Array](<https://leetcode.com/problems/remove-duplicates-from-sorted-array>)                                                                               | Easy    |                | [solution](<markdowns/_26. Remove Duplicates from Sorted Array.md>)                                          | java                             |
 |   27 | [Remove Element](<https://leetcode.com/problems/remove-element>)                                                                                                                         | Easy    |                | [solution](<markdowns/_27. Remove Element.md>)                                                               | java, py                         |
 |   28 | [Find the Index of the First Occurrence in a String](<https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string>)                                                 | Easy    |                | [solution](<markdowns/_28. Find the Index of the First Occurrence in a String.md>)                           | py                               |
-|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Easy    | N150           | [solution](<markdowns/_36. Valid Sudoku.md>)                                                                 | py                               |
-|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_39. Combination Sum.md>)                                                              | py                               |
-|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Easy    | N150           | [solution](<markdowns/_46. Permutations.md>)                                                                 | py                               |
-|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_48. Rotate Image.md>)                                                                 | c, py                            |
-|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Easy    | B75, N150      | [solution](<markdowns/_49. Group Anagrams.md>)                                                               | py                               |
-|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                                      | Easy    | N150           | [solution](<markdowns/_50. Pow(x, n).md>)                                                                    | c, java, py                      |
-|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_56. Merge Intervals.md>)                                                              | py                               |
-|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_57. Insert Interval.md>)                                                              | py                               |
-|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                               | Easy    |                | [solution](<markdowns/_61. Rotate List.md>)                                                                  | py                               |
+|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Medium  | N150           | [solution](<markdowns/_36. Valid Sudoku.md>)                                                                 | py                               |
+|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Medium  | B75, N150      | [solution](<markdowns/_39. Combination Sum.md>)                                                              | py                               |
+|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Medium  | N150           | [solution](<markdowns/_46. Permutations.md>)                                                                 | py                               |
+|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_48. Rotate Image.md>)                                                                 | c, py                            |
+|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Medium  | B75, N150      | [solution](<markdowns/_49. Group Anagrams.md>)                                                               | py                               |
+|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                                      | Medium  | N150           | [solution](<markdowns/_50. Pow(x, n).md>)                                                                    | c, java, py                      |
+|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Medium  | B75, N150      | [solution](<markdowns/_56. Merge Intervals.md>)                                                              | py                               |
+|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Medium  | B75, N150      | [solution](<markdowns/_57. Insert Interval.md>)                                                              | py                               |
+|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                               | Medium  |                | [solution](<markdowns/_61. Rotate List.md>)                                                                  | py                               |
 |   66 | [Plus One](<https://leetcode.com/problems/plus-one>)                                                                                                                                     | Easy    | N150           | [solution](<markdowns/_66. Plus One.md>)                                                                     | c                                |
 |   69 | [Sqrt(x)](<https://leetcode.com/problems/sqrtx>)                                                                                                                                         | Easy    |                | [solution](<markdowns/_69. Sqrt(x).md>)                                                                      | py                               |
 |   70 | [Climbing Stairs](<https://leetcode.com/problems/climbing-stairs>)                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_70. Climbing Stairs.md>)                                                              | py                               |
-|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                                           | Easy    |                | [solution](<markdowns/_71. Simplify Path.md>)                                                                | py                               |
-|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Easy    | N150           | [solution](<markdowns/_74. Search a 2D Matrix.md>)                                                           | py                               |
-|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Easy    | Daily          | [solution](<markdowns/_75. Sort Colors.md>)                                                                  | c, py                            |
-|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                                             | Easy    |                | [solution](<markdowns/_77. Combinations.md>)                                                                 | py                               |
-|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Easy    | N150           | [solution](<markdowns/_78. Subsets.md>)                                                                      | py                               |
-|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Easy    | B75, N150      | [solution](<markdowns/_79. Word Search.md>)                                                                  | py                               |
-|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                                           | Easy    |                | [solution](<markdowns/_82. Remove Duplicates from Sorted List II.md>)                                        | py                               |
+|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                                           | Medium  |                | [solution](<markdowns/_71. Simplify Path.md>)                                                                | py                               |
+|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Medium  | N150           | [solution](<markdowns/_74. Search a 2D Matrix.md>)                                                           | py                               |
+|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Medium  | Daily          | [solution](<markdowns/_75. Sort Colors.md>)                                                                  | c, py                            |
+|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                                             | Medium  |                | [solution](<markdowns/_77. Combinations.md>)                                                                 | py                               |
+|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Medium  | N150           | [solution](<markdowns/_78. Subsets.md>)                                                                      | py                               |
+|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Medium  | B75, N150      | [solution](<markdowns/_79. Word Search.md>)                                                                  | py                               |
+|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                                           | Medium  |                | [solution](<markdowns/_82. Remove Duplicates from Sorted List II.md>)                                        | py                               |
 |   84 | [Largest Rectangle in Histogram](<https://leetcode.com/problems/largest-rectangle-in-histogram>)                                                                                         | Hard    | N150           | [solution](<markdowns/_84. Largest Rectangle in Histogram.md>)                                               | py                               |
-|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Easy    | N150           | [solution](<markdowns/_90. Subsets II.md>)                                                                   | py                               |
+|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Medium  | N150           | [solution](<markdowns/_90. Subsets II.md>)                                                                   | py                               |
 |   94 | [Binary Tree Inorder Traversal](<https://leetcode.com/problems/binary-tree-inorder-traversal>)                                                                                           | Easy    |                | [solution](<markdowns/_94. Binary Tree Inorder Traversal.md>)                                                | java, py                         |
-|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                                                               | Easy    | B75, N150      | [solution](<markdowns/_98. Validate Binary Search Tree.md>)                                                  | c                                |
+|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                                                               | Medium  | B75, N150      | [solution](<markdowns/_98. Validate Binary Search Tree.md>)                                                  | c                                |
 |  100 | [Same Tree](<https://leetcode.com/problems/same-tree>)                                                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_100. Same Tree.md>)                                                                   | py                               |
-|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_102. Binary Tree Level Order Traversal.md>)                                           | java                             |
-|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                                                     | Easy    |                | [solution](<markdowns/_103. Binary Tree Zigzag Level Order Traversal.md>)                                    | py                               |
+|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                                                   | Medium  | B75, N150      | [solution](<markdowns/_102. Binary Tree Level Order Traversal.md>)                                           | java                             |
+|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                                                     | Medium  |                | [solution](<markdowns/_103. Binary Tree Zigzag Level Order Traversal.md>)                                    | py                               |
 |  104 | [Maximum Depth of Binary Tree](<https://leetcode.com/problems/maximum-depth-of-binary-tree>)                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_104. Maximum Depth of Binary Tree.md>)                                                | py                               |
-|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                                             | Easy    |                | [solution](<markdowns/_107. Binary Tree Level Order Traversal II.md>)                                        | java                             |
+|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                                             | Medium  |                | [solution](<markdowns/_107. Binary Tree Level Order Traversal II.md>)                                        | java                             |
 |  110 | [Balanced Binary Tree](<https://leetcode.com/problems/balanced-binary-tree>)                                                                                                             | Easy    | N150           | [solution](<markdowns/_110. Balanced Binary Tree.md>)                                                        | py                               |
 |  111 | [Minimum Depth of Binary Tree](<https://leetcode.com/problems/minimum-depth-of-binary-tree>)                                                                                             | Easy    |                | [solution](<markdowns/_111. Minimum Depth of Binary Tree.md>)                                                | c, java                          |
 |  112 | [Path Sum](<https://leetcode.com/problems/path-sum>)                                                                                                                                     | Easy    |                | [solution](<markdowns/_112. Path Sum.md>)                                                                    | py                               |
-|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                                               | Easy    |                | [solution](<markdowns/_113. Path Sum II.md>)                                                                 | py                               |
-|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                                 | Easy    |                | [solution](<markdowns/_114. Flatten Binary Tree to Linked List.md>)                                          | c, py                            |
+|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                                               | Medium  |                | [solution](<markdowns/_113. Path Sum II.md>)                                                                 | py                               |
+|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                                 | Medium  |                | [solution](<markdowns/_114. Flatten Binary Tree to Linked List.md>)                                          | c, py                            |
 |  118 | [Pascal's Triangle](<https://leetcode.com/problems/pascals-triangle>)                                                                                                                    | Easy    |                | [solution](<markdowns/_118. Pascal's Triangle.md>)                                                           | py                               |
 |  121 | [Best Time to Buy and Sell Stock](<https://leetcode.com/problems/best-time-to-buy-and-sell-stock>)                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_121. Best Time to Buy and Sell Stock.md>)                                             | py                               |
 |  124 | [Binary Tree Maximum Path Sum](<https://leetcode.com/problems/binary-tree-maximum-path-sum>)                                                                                             | Hard    | B75, N150      | [solution](<markdowns/_124. Binary Tree Maximum Path Sum.md>)                                                | py                               |
 |  125 | [Valid Palindrome](<https://leetcode.com/problems/valid-palindrome>)                                                                                                                     | Easy    | B75, N150      | [solution](<markdowns/_125. Valid Palindrome.md>)                                                            | c, py                            |
-|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_128. Longest Consecutive Sequence.md>)                                                | java, py                         |
-|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                                                     | Easy    |                | [solution](<markdowns/_129. Sum Root to Leaf Numbers.md>)                                                    | py                               |
+|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_128. Longest Consecutive Sequence.md>)                                                | java, py                         |
+|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                                                     | Medium  |                | [solution](<markdowns/_129. Sum Root to Leaf Numbers.md>)                                                    | py                               |
 |  136 | [Single Number](<https://leetcode.com/problems/single-number>)                                                                                                                           | Easy    | N150           | [solution](<markdowns/_136. Single Number.md>)                                                               | py                               |
-|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                                           | Easy    | N150           | [solution](<markdowns/_138. Copy List with Random Pointer.md>)                                               | py                               |
+|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                                           | Medium  | N150           | [solution](<markdowns/_138. Copy List with Random Pointer.md>)                                               | py                               |
 |  141 | [Linked List Cycle](<https://leetcode.com/problems/linked-list-cycle>)                                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_141. Linked List Cycle.md>)                                                           | c, py                            |
-|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                             | Easy    |                | [solution](<markdowns/_142. Linked List Cycle II.md>)                                                        | py                               |
-|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_143. Reorder List.md>)                                                                | java, py                         |
-|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Easy    | N150           | [solution](<markdowns/_150. Evaluate Reverse Polish Notation.md>)                                            | py                               |
-|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                                                                   | Easy    | N150           | [solution](<markdowns/_155. Min Stack.md>)                                                                   | py                               |
-|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                                       | Easy    |                | [solution](<markdowns/_165. Compare Version Numbers.md>)                                                     | c, py                            |
-|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                                           | Easy    |                | [solution](<markdowns/_166. Fraction to Recurring Decimal.md>)                                               | py                               |
-|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Easy    | N150           | [solution](<markdowns/_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                               |
-|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                                                               | Easy    |                | [solution](<markdowns/_173. Binary Search Tree Iterator.md>)                                                 | py                               |
+|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                             | Medium  |                | [solution](<markdowns/_142. Linked List Cycle II.md>)                                                        | py                               |
+|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_143. Reorder List.md>)                                                                | java, py                         |
+|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Medium  | N150           | [solution](<markdowns/_150. Evaluate Reverse Polish Notation.md>)                                            | py                               |
+|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                                                                   | Medium  | N150           | [solution](<markdowns/_155. Min Stack.md>)                                                                   | py                               |
+|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                                       | Medium  |                | [solution](<markdowns/_165. Compare Version Numbers.md>)                                                     | c, py                            |
+|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                                           | Medium  |                | [solution](<markdowns/_166. Fraction to Recurring Decimal.md>)                                               | py                               |
+|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Medium  | N150           | [solution](<markdowns/_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                               |
+|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                                                               | Medium  |                | [solution](<markdowns/_173. Binary Search Tree Iterator.md>)                                                 | py                               |
 |  175 | [Combine Two Tables](<https://leetcode.com/problems/combine-two-tables>)                                                                                                                 | Easy    |                | [solution](<markdowns/_175. Combine Two Tables.md>)                                                          | py, sql                          |
-|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                                                                           | Easy    |                | [solution](<markdowns/_176. Second Highest Salary.md>)                                                       | sql                              |
-|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                                                                                 | Easy    |                | [solution](<markdowns/_177. Nth Highest Salary.md>)                                                          | sql                              |
+|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                                                                           | Medium  |                | [solution](<markdowns/_176. Second Highest Salary.md>)                                                       | sql                              |
+|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                                                                                 | Medium  |                | [solution](<markdowns/_177. Nth Highest Salary.md>)                                                          | sql                              |
 |  181 | [Employees Earning More Than Their Managers](<https://leetcode.com/problems/employees-earning-more-than-their-managers>)                                                                 | Easy    |                | [solution](<markdowns/_181. Employees Earning More Than Their Managers.md>)                                  | sql                              |
 |  182 | [Duplicate Emails](<https://leetcode.com/problems/duplicate-emails>)                                                                                                                     | Easy    |                | [solution](<markdowns/_182. Duplicate Emails.md>)                                                            | sql                              |
 |  183 | [Customers Who Never Order](<https://leetcode.com/problems/customers-who-never-order>)                                                                                                   | Easy    |                | [solution](<markdowns/_183. Customers Who Never Order.md>)                                                   | sql                              |
-|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                                                                                   | Easy    |                | [solution](<markdowns/_184. Department Highest Salary.md>)                                                   | sql                              |
-|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Easy    |                | [solution](<markdowns/_189. Rotate Array.md>)                                                                | py                               |
+|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                                                                                   | Medium  |                | [solution](<markdowns/_184. Department Highest Salary.md>)                                                   | sql                              |
+|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Medium  |                | [solution](<markdowns/_189. Rotate Array.md>)                                                                | py                               |
 |  191 | [Number of 1 Bits](<https://leetcode.com/problems/number-of-1-bits>)                                                                                                                     | Easy    | B75, N150      | [solution](<markdowns/_191. Number of 1 Bits.md>)                                                            | py                               |
 |  196 | [Delete Duplicate Emails](<https://leetcode.com/problems/delete-duplicate-emails>)                                                                                                       | Easy    |                | [solution](<markdowns/_196. Delete Duplicate Emails.md>)                                                     | py, sql                          |
 |  197 | [Rising Temperature](<https://leetcode.com/problems/rising-temperature>)                                                                                                                 | Easy    |                | [solution](<markdowns/_197. Rising Temperature.md>)                                                          | sql                              |
-|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_198. House Robber.md>)                                                                | py                               |
-|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                                               | Easy    | N150           | [solution](<markdowns/_199. Binary Tree Right Side View.md>)                                                 | cpp, java                        |
-|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_200. Number of Islands.md>)                                                           | py                               |
+|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_198. House Robber.md>)                                                                | py                               |
+|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                                               | Medium  | N150           | [solution](<markdowns/_199. Binary Tree Right Side View.md>)                                                 | cpp, java                        |
+|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Medium  | B75, N150      | [solution](<markdowns/_200. Number of Islands.md>)                                                           | py                               |
 |  206 | [Reverse Linked List](<https://leetcode.com/problems/reverse-linked-list>)                                                                                                               | Easy    | B75, N150      | [solution](<markdowns/_206. Reverse Linked List.md>)                                                         | java                             |
-|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                                               | Easy    | B75, N150      | [solution](<markdowns/_208. Implement Trie (Prefix Tree).md>)                                                | py                               |
-|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                                 | Easy    | B75, N150      | [solution](<markdowns/_211. Design Add and Search Words Data Structure.md>)                                  | py                               |
+|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                                               | Medium  | B75, N150      | [solution](<markdowns/_208. Implement Trie (Prefix Tree).md>)                                                | py                               |
+|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                                 | Medium  | B75, N150      | [solution](<markdowns/_211. Design Add and Search Words Data Structure.md>)                                  | py                               |
 |  212 | [Word Search II](<https://leetcode.com/problems/word-search-ii>)                                                                                                                         | Hard    | B75, N150      | [solution](<markdowns/_212. Word Search II.md>)                                                              | py                               |
 |  217 | [Contains Duplicate](<https://leetcode.com/problems/contains-duplicate>)                                                                                                                 | Easy    | B75, N150      | [solution](<markdowns/_217. Contains Duplicate.md>)                                                          | py                               |
 |  224 | [Basic Calculator](<https://leetcode.com/problems/basic-calculator>)                                                                                                                     | Hard    |                | [solution](<markdowns/_224. Basic Calculator.md>)                                                            | py                               |
 |  226 | [Invert Binary Tree](<https://leetcode.com/problems/invert-binary-tree>)                                                                                                                 | Easy    | B75, N150      | [solution](<markdowns/_226. Invert Binary Tree.md>)                                                          | py                               |
-|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                                               | Easy    |                | [solution](<markdowns/_227. Basic Calculator II.md>)                                                         | py                               |
-|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                                                           | Easy    | B75, N150      | [solution](<markdowns/_230. Kth Smallest Element in a BST.md>)                                               | py                               |
-|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                                                         | Easy    | B75, N150      | [solution](<markdowns/_235. Lowest Common Ancestor of a Binary Search Tree.md>)                              | py                               |
-|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                                                       | Easy    | B75            | [solution](<markdowns/_236. Lowest Common Ancestor of a Binary Tree.md>)                                     | py                               |
-|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_238. Product of Array Except Self.md>)                                                | py                               |
+|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                                               | Medium  |                | [solution](<markdowns/_227. Basic Calculator II.md>)                                                         | py                               |
+|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                                                           | Medium  | B75, N150      | [solution](<markdowns/_230. Kth Smallest Element in a BST.md>)                                               | py                               |
+|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                                                         | Medium  | B75, N150      | [solution](<markdowns/_235. Lowest Common Ancestor of a Binary Search Tree.md>)                              | py                               |
+|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                                                       | Medium  | B75            | [solution](<markdowns/_236. Lowest Common Ancestor of a Binary Tree.md>)                                     | py                               |
+|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_238. Product of Array Except Self.md>)                                                | py                               |
 |  239 | [Sliding Window Maximum](<https://leetcode.com/problems/sliding-window-maximum>)                                                                                                         | Hard    | N150           | [solution](<markdowns/_239. Sliding Window Maximum.md>)                                                      | py                               |
 |  242 | [Valid Anagram](<https://leetcode.com/problems/valid-anagram>)                                                                                                                           | Easy    | B75, N150      | [solution](<markdowns/_242. Valid Anagram.md>)                                                               | c, py                            |
-|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Easy    |                | [solution](<markdowns/_251. Flatten 2D Vector.md>)                                                           | py                               |
-|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Easy    | Daily          | [solution](<markdowns/_260. Single Number III.md>)                                                           | py                               |
-|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_271. Encode and Decode Strings.md>)                                                   | py                               |
+|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Medium  |                | [solution](<markdowns/_251. Flatten 2D Vector.md>)                                                           | py                               |
+|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Medium  | Daily          | [solution](<markdowns/_260. Single Number III.md>)                                                           | py                               |
+|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Medium  | B75, N150      | [solution](<markdowns/_271. Encode and Decode Strings.md>)                                                   | py                               |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                                                               | Hard    |                | [solution](<markdowns/_272. Closest Binary Search Tree Value II.md>)                                         | py                               |
 |  273 | [Integer to English Words](<https://leetcode.com/problems/integer-to-english-words>)                                                                                                     | Hard    |                | [solution](<markdowns/_273. Integer to English Words.md>)                                                    | py                               |
-|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Easy    | N150           | [solution](<markdowns/_286. Walls and Gates.md>)                                                             | py                               |
-|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Easy    | N150           | [solution](<markdowns/_287. Find the Duplicate Number.md>)                                                   | c                                |
+|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Medium  | N150           | [solution](<markdowns/_286. Walls and Gates.md>)                                                             | py                               |
+|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Medium  | N150           | [solution](<markdowns/_287. Find the Duplicate Number.md>)                                                   | c                                |
 |  292 | [Nim Game](<https://leetcode.com/problems/nim-game>)                                                                                                                                     | Easy    |                | [solution](<markdowns/_292. Nim Game.md>)                                                                    | py                               |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                             | Easy    |                | [solution](<markdowns/_314. Binary Tree Vertical Order Traversal.md>)                                        | py                               |
-|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                             | Easy    |                | [solution](<markdowns/_328. Odd Even Linked List.md>)                                                        | py                               |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                             | Medium  |                | [solution](<markdowns/_314. Binary Tree Vertical Order Traversal.md>)                                        | py                               |
+|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                             | Medium  |                | [solution](<markdowns/_328. Odd Even Linked List.md>)                                                        | py                               |
 |  330 | [Patching Array](<https://leetcode.com/problems/patching-array>)                                                                                                                         | Hard    | Daily          | [solution](<markdowns/_330. Patching Array.md>)                                                              | py                               |
-|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                                         | Easy    |                | [solution](<markdowns/_339. Nested List Weight Sum.md>)                                                      | c, py                            |
-|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Easy    |                | [solution](<markdowns/_341. Flatten Nested List Iterator.md>)                                                | java                             |
+|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                                         | Medium  |                | [solution](<markdowns/_339. Nested List Weight Sum.md>)                                                      | c, py                            |
+|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Medium  |                | [solution](<markdowns/_341. Flatten Nested List Iterator.md>)                                                | java                             |
 |  344 | [Reverse String](<https://leetcode.com/problems/reverse-string>)                                                                                                                         | Easy    | Daily          | [solution](<markdowns/_344. Reverse String.md>)                                                              | java, py                         |
 |  345 | [Reverse Vowels of a String](<https://leetcode.com/problems/reverse-vowels-of-a-string>)                                                                                                 | Easy    |                | [solution](<markdowns/_345. Reverse Vowels of a String.md>)                                                  | py                               |
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_347. Top K Frequent Elements.md>)                                                     | py                               |
-|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Easy    |                | [solution](<markdowns/_348. Design Tic-Tac-Toe.md>)                                                          | py                               |
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Medium  | B75, N150      | [solution](<markdowns/_347. Top K Frequent Elements.md>)                                                     | py                               |
+|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Medium  |                | [solution](<markdowns/_348. Design Tic-Tac-Toe.md>)                                                          | py                               |
 |  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                                           | Easy    | Daily          | [solution](<markdowns/_350. Intersection of Two Arrays II.md>)                                               | java, py                         |
-|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Easy    |                | [solution](<markdowns/_353. Design Snake Game.md>)                                                           | py                               |
-|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                                                   | Easy    |                | [solution](<markdowns/_364. Nested List Weight Sum II.md>)                                                   | java, py                         |
-|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                                                 | Easy    |                | [solution](<markdowns/_366. Find Leaves of Binary Tree.md>)                                                  | py                               |
-|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                             | Easy    |                | [solution](<markdowns/_369. Plus One Linked List.md>)                                                        | c                                |
+|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Medium  |                | [solution](<markdowns/_353. Design Snake Game.md>)                                                           | py                               |
+|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                                                   | Medium  |                | [solution](<markdowns/_364. Nested List Weight Sum II.md>)                                                   | java, py                         |
+|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                                                 | Medium  |                | [solution](<markdowns/_366. Find Leaves of Binary Tree.md>)                                                  | py                               |
+|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                             | Medium  |                | [solution](<markdowns/_369. Plus One Linked List.md>)                                                        | c                                |
 |  374 | [Guess Number Higher or Lower](<https://leetcode.com/problems/guess-number-higher-or-lower>)                                                                                             | Easy    |                | [solution](<markdowns/_374. Guess Number Higher or Lower.md>)                                                | java, py                         |
-|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Easy    |                | [solution](<markdowns/_380. Insert Delete GetRandom O(1).md>)                                                | java                             |
+|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Medium  |                | [solution](<markdowns/_380. Insert Delete GetRandom O(1).md>)                                                | java                             |
 |  381 | [Insert Delete GetRandom O(1) - Duplicates allowed](<https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed>)                                                       | Hard    |                | [solution](<markdowns/_381. Insert Delete GetRandom O(1) - Duplicates allowed.md>)                           | java                             |
-|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                                       | Easy    |                | [solution](<markdowns/_382. Linked List Random Node.md>)                                                     | c, java, py                      |
-|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Easy    |                | [solution](<markdowns/_384. Shuffle an Array.md>)                                                            | py                               |
+|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                                       | Medium  |                | [solution](<markdowns/_382. Linked List Random Node.md>)                                                     | c, java, py                      |
+|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Medium  |                | [solution](<markdowns/_384. Shuffle an Array.md>)                                                            | py                               |
 |  392 | [Is Subsequence](<https://leetcode.com/problems/is-subsequence>)                                                                                                                         | Easy    |                | [solution](<markdowns/_392. Is Subsequence.md>)                                                              | java                             |
-|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                                           | Easy    |                | [solution](<markdowns/_394. Decode String.md>)                                                               | py                               |
+|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                                           | Medium  |                | [solution](<markdowns/_394. Decode String.md>)                                                               | py                               |
 |  408 | [Valid Word Abbreviation](<https://leetcode.com/problems/valid-word-abbreviation>)                                                                                                       | Easy    |                | [solution](<markdowns/_408. Valid Word Abbreviation.md>)                                                     | py                               |
 |  409 | [Longest Palindrome](<https://leetcode.com/problems/longest-palindrome>)                                                                                                                 | Easy    | Daily          | [solution](<markdowns/_409. Longest Palindrome.md>)                                                          | c, py                            |
 |  412 | [Fizz Buzz](<https://leetcode.com/problems/fizz-buzz>)                                                                                                                                   | Easy    |                | [solution](<markdowns/_412. Fizz Buzz.md>)                                                                   | java, py                         |
 |  414 | [Third Maximum Number](<https://leetcode.com/problems/third-maximum-number>)                                                                                                             | Easy    |                | [solution](<markdowns/_414. Third Maximum Number.md>)                                                        | py                               |
-|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Easy    |                | [solution](<markdowns/_419. Battleships in a Board.md>)                                                      | c, py                            |
-|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Easy    | B75, N150      | [solution](<markdowns/_424. Longest Repeating Character Replacement.md>)                                     | py                               |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                                       | Easy    |                | [solution](<markdowns/_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)                     | py                               |
-|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                                                     | Easy    |                | [solution](<markdowns/_429. N-ary Tree Level Order Traversal.md>)                                            | py                               |
-|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                                       | Easy    |                | [solution](<markdowns/_430. Flatten a Multilevel Doubly Linked List.md>)                                     | cpp, java                        |
+|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Medium  |                | [solution](<markdowns/_419. Battleships in a Board.md>)                                                      | c, py                            |
+|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Medium  | B75, N150      | [solution](<markdowns/_424. Longest Repeating Character Replacement.md>)                                     | py                               |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                                       | Medium  |                | [solution](<markdowns/_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)                     | py                               |
+|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                                                     | Medium  |                | [solution](<markdowns/_429. N-ary Tree Level Order Traversal.md>)                                            | py                               |
+|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                                       | Medium  |                | [solution](<markdowns/_430. Flatten a Multilevel Doubly Linked List.md>)                                     | cpp, java                        |
 |  431 | [Encode N-ary Tree to Binary Tree](<https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree>)                                                                                     | Hard    |                | [solution](<markdowns/_431. Encode N-ary Tree to Binary Tree.md>)                                            | java, py                         |
-|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                                                             | Easy    |                | [solution](<markdowns/_437. Path Sum III.md>)                                                                | py                               |
-|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                                                             | Easy    |                | [solution](<markdowns/_450. Delete Node in a BST.md>)                                                        | py                               |
-|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Easy    |                | [solution](<markdowns/_451. Sort Characters By Frequency.md>)                                                | py                               |
-|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Easy    |                | [solution](<markdowns/_475. Heaters.md>)                                                                     | py                               |
+|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                                                             | Medium  |                | [solution](<markdowns/_437. Path Sum III.md>)                                                                | py                               |
+|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                                                             | Medium  |                | [solution](<markdowns/_450. Delete Node in a BST.md>)                                                        | py                               |
+|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Medium  |                | [solution](<markdowns/_451. Sort Characters By Frequency.md>)                                                | py                               |
+|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Medium  |                | [solution](<markdowns/_475. Heaters.md>)                                                                     | py                               |
 |  502 | [IPO](<https://leetcode.com/problems/ipo>)                                                                                                                                               | Hard    | Daily          | [solution](<markdowns/_502. IPO.md>)                                                                         | py                               |
-|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Easy    |                | [solution](<markdowns/_503. Next Greater Element II.md>)                                                     | py                               |
+|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Medium  |                | [solution](<markdowns/_503. Next Greater Element II.md>)                                                     | py                               |
 |  509 | [Fibonacci Number](<https://leetcode.com/problems/fibonacci-number>)                                                                                                                     | Easy    |                | [solution](<markdowns/_509. Fibonacci Number.md>)                                                            | c                                |
-|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                                               | Easy    |                | [solution](<markdowns/_513. Find Bottom Left Tree Value.md>)                                                 | java                             |
-|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Easy    | Daily          | [solution](<markdowns/_523. Continuous Subarray Sum.md>)                                                     | py                               |
-|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                                   | Easy    |                | [solution](<markdowns/_535. Encode and Decode TinyURL.md>)                                                   | py                               |
-|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Easy    |                | [solution](<markdowns/_540. Single Element in a Sorted Array.md>)                                            | py                               |
-|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Easy    |                | [solution](<markdowns/_542. 01 Matrix.md>)                                                                   | py                               |
+|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                                               | Medium  |                | [solution](<markdowns/_513. Find Bottom Left Tree Value.md>)                                                 | java                             |
+|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Medium  | Daily          | [solution](<markdowns/_523. Continuous Subarray Sum.md>)                                                     | py                               |
+|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                                   | Medium  |                | [solution](<markdowns/_535. Encode and Decode TinyURL.md>)                                                   | py                               |
+|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Medium  |                | [solution](<markdowns/_540. Single Element in a Sorted Array.md>)                                            | py                               |
+|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Medium  |                | [solution](<markdowns/_542. 01 Matrix.md>)                                                                   | py                               |
 |  543 | [Diameter of Binary Tree](<https://leetcode.com/problems/diameter-of-binary-tree>)                                                                                                       | Easy    | N150           | [solution](<markdowns/_543. Diameter of Binary Tree.md>)                                                     | c, java, py                      |
-|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Easy    |                | [solution](<markdowns/_565. Array Nesting.md>)                                                               | py                               |
-|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Easy    | N150           | [solution](<markdowns/_567. Permutation in String.md>)                                                       | py                               |
+|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Medium  |                | [solution](<markdowns/_565. Array Nesting.md>)                                                               | py                               |
+|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Medium  | N150           | [solution](<markdowns/_567. Permutation in String.md>)                                                       | py                               |
 |  572 | [Subtree of Another Tree](<https://leetcode.com/problems/subtree-of-another-tree>)                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_572. Subtree of Another Tree.md>)                                                     | py                               |
 |  577 | [Employee Bonus](<https://leetcode.com/problems/employee-bonus>)                                                                                                                         | Easy    |                | [solution](<markdowns/_577. Employee Bonus.md>)                                                              | sql                              |
 |  584 | [Find Customer Referee](<https://leetcode.com/problems/find-customer-referee>)                                                                                                           | Easy    |                | [solution](<markdowns/_584. Find Customer Referee.md>)                                                       | sql                              |
@@ -196,244 +196,244 @@ This repo is a collection of my LeetCode solutions, primarily written in Python,
 |  595 | [Big Countries](<https://leetcode.com/problems/big-countries>)                                                                                                                           | Easy    |                | [solution](<markdowns/_595. Big Countries.md>)                                                               | sql                              |
 |  596 | [Classes More Than 5 Students](<https://leetcode.com/problems/classes-more-than-5-students>)                                                                                             | Easy    |                | [solution](<markdowns/_596. Classes More Than 5 Students.md>)                                                | sql                              |
 |  607 | [Sales Person](<https://leetcode.com/problems/sales-person>)                                                                                                                             | Easy    |                | [solution](<markdowns/_607. Sales Person.md>)                                                                | sql                              |
-|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Easy    |                | [solution](<markdowns/_611. Valid Triangle Number.md>)                                                       | py                               |
-|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Easy    |                | [solution](<markdowns/_616. Add Bold Tag in String.md>)                                                      | py                               |
+|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Medium  |                | [solution](<markdowns/_611. Valid Triangle Number.md>)                                                       | py                               |
+|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Medium  |                | [solution](<markdowns/_616. Add Bold Tag in String.md>)                                                      | py                               |
 |  619 | [Biggest Single Number](<https://leetcode.com/problems/biggest-single-number>)                                                                                                           | Easy    |                | [solution](<markdowns/_619. Biggest Single Number.md>)                                                       | sql                              |
-|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Easy    |                | [solution](<markdowns/_622. Design Circular Queue.md>)                                                       | py                               |
+|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Medium  |                | [solution](<markdowns/_622. Design Circular Queue.md>)                                                       | py                               |
 |  637 | [Average of Levels in Binary Tree](<https://leetcode.com/problems/average-of-levels-in-binary-tree>)                                                                                     | Easy    |                | [solution](<markdowns/_637. Average of Levels in Binary Tree.md>)                                            | py                               |
 |  645 | [Set Mismatch](<https://leetcode.com/problems/set-mismatch>)                                                                                                                             | Easy    |                | [solution](<markdowns/_645. Set Mismatch.md>)                                                                | java, py                         |
-|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                                         | Easy    | B75, N150      | [solution](<markdowns/_647. Palindromic Substrings.md>)                                                      | py                               |
-|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Easy    | Daily          | [solution](<markdowns/_648. Replace Words.md>)                                                               | java, py                         |
-|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                                       | Easy    |                | [solution](<markdowns/_651. 4 Keys Keyboard.md>)                                                             | py                               |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Easy    |                | [solution](<markdowns/_654. Maximum Binary Tree.md>)                                                         | py                               |
-|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Easy    | Daily          | [solution](<markdowns/_663. Equal Tree Partition.md>)                                                        | py                               |
-|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Easy    |                | [solution](<markdowns/_665. Non-decreasing Array.md>)                                                        | java, py                         |
-|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Easy    |                | [solution](<markdowns/_666. Path Sum IV.md>)                                                                 | py                               |
-|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                                 | Easy    |                | [solution](<markdowns/_676. Implement Magic Dictionary.md>)                                                  | py                               |
-|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                                                           | Easy    |                | [solution](<markdowns/_687. Longest Univalue Path.md>)                                                       | py                               |
-|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Easy    |                | [solution](<markdowns/_690. Employee Importance.md>)                                                         | java                             |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Easy    |                | [solution](<markdowns/_692. Top K Frequent Words.md>)                                                        | py                               |
-|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Easy    | N150           | [solution](<markdowns/_695. Max Area of Island.md>)                                                          | c                                |
+|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                                         | Medium  | B75, N150      | [solution](<markdowns/_647. Palindromic Substrings.md>)                                                      | py                               |
+|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Medium  | Daily          | [solution](<markdowns/_648. Replace Words.md>)                                                               | java, py                         |
+|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                                       | Medium  |                | [solution](<markdowns/_651. 4 Keys Keyboard.md>)                                                             | py                               |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Medium  |                | [solution](<markdowns/_654. Maximum Binary Tree.md>)                                                         | py                               |
+|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Medium  | Daily          | [solution](<markdowns/_663. Equal Tree Partition.md>)                                                        | py                               |
+|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Medium  |                | [solution](<markdowns/_665. Non-decreasing Array.md>)                                                        | java, py                         |
+|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Medium  |                | [solution](<markdowns/_666. Path Sum IV.md>)                                                                 | py                               |
+|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                                 | Medium  |                | [solution](<markdowns/_676. Implement Magic Dictionary.md>)                                                  | py                               |
+|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                                                           | Medium  |                | [solution](<markdowns/_687. Longest Univalue Path.md>)                                                       | py                               |
+|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Medium  |                | [solution](<markdowns/_690. Employee Importance.md>)                                                         | java                             |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Medium  |                | [solution](<markdowns/_692. Top K Frequent Words.md>)                                                        | py                               |
+|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Medium  | N150           | [solution](<markdowns/_695. Max Area of Island.md>)                                                          | c                                |
 |  700 | [Search in a Binary Search Tree](<https://leetcode.com/problems/search-in-a-binary-search-tree>)                                                                                         | Easy    |                | [solution](<markdowns/_700. Search in a Binary Search Tree.md>)                                              | c, java, py                      |
 |  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                                                                       | Easy    | N150           | [solution](<markdowns/_703. Kth Largest Element in a Stream.md>)                                             | py                               |
-|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                                 | Easy    |                | [solution](<markdowns/_707. Design Linked List.md>)                                                          | java                             |
-|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                                   | Easy    |                | [solution](<markdowns/_708. Insert into a Sorted Circular Linked List.md>)                                   | py                               |
-|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Easy    |                | [solution](<markdowns/_713. Subarray Product Less Than K.md>)                                                | py                               |
-|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Easy    |                | [solution](<markdowns/_720. Longest Word in Dictionary.md>)                                                  | py                               |
-|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                                 | Easy    |                | [solution](<markdowns/_725. Split Linked List in Parts.md>)                                                  | py                               |
+|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                                 | Medium  |                | [solution](<markdowns/_707. Design Linked List.md>)                                                          | java                             |
+|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                                   | Medium  |                | [solution](<markdowns/_708. Insert into a Sorted Circular Linked List.md>)                                   | py                               |
+|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Medium  |                | [solution](<markdowns/_713. Subarray Product Less Than K.md>)                                                | py                               |
+|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Medium  |                | [solution](<markdowns/_720. Longest Word in Dictionary.md>)                                                  | py                               |
+|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                                 | Medium  |                | [solution](<markdowns/_725. Split Linked List in Parts.md>)                                                  | py                               |
 |  726 | [Number of Atoms](<https://leetcode.com/problems/number-of-atoms>)                                                                                                                       | Hard    | Daily          | [solution](<markdowns/_726. Number of Atoms.md>)                                                             | py                               |
-|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Easy    |                | [solution](<markdowns/_735. Asteroid Collision.md>)                                                          | py                               |
-|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Easy    | N150           | [solution](<markdowns/_739. Daily Temperatures.md>)                                                          | c, java, py                      |
+|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Medium  |                | [solution](<markdowns/_735. Asteroid Collision.md>)                                                          | py                               |
+|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Medium  | N150           | [solution](<markdowns/_739. Daily Temperatures.md>)                                                          | c, java, py                      |
 |  744 | [Find Smallest Letter Greater Than Target](<https://leetcode.com/problems/find-smallest-letter-greater-than-target>)                                                                     | Easy    |                | [solution](<markdowns/_744. Find Smallest Letter Greater Than Target.md>)                                    | java, py                         |
 |  746 | [Min Cost Climbing Stairs](<https://leetcode.com/problems/min-cost-climbing-stairs>)                                                                                                     | Easy    | N150           | [solution](<markdowns/_746. Min Cost Climbing Stairs.md>)                                                    | py                               |
-|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Easy    |                | [solution](<markdowns/_758. Bold Words in String.md>)                                                        | py                               |
+|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Medium  |                | [solution](<markdowns/_758. Bold Words in String.md>)                                                        | py                               |
 |  771 | [Jewels and Stones](<https://leetcode.com/problems/jewels-and-stones>)                                                                                                                   | Easy    |                | [solution](<markdowns/_771. Jewels and Stones.md>)                                                           | java, py                         |
-|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                                                   | Easy    | Weekly Premium | [solution](<markdowns/_776. Split BST.md>)                                                                   | py                               |
-|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                                       | Easy    |                | [solution](<markdowns/_784. Letter Case Permutation.md>)                                                     | py                               |
-|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                                 | Easy    |                | [solution](<markdowns/_791. Custom Sort String.md>)                                                          | java                             |
-|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Easy    |                | [solution](<markdowns/_794. Valid Tic-Tac-Toe State.md>)                                                     | py                               |
-|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Easy    |                | [solution](<markdowns/_807. Max Increase to Keep City Skyline.md>)                                           | java                             |
-|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Easy    |                | [solution](<markdowns/_817. Linked List Components.md>)                                                      | java                             |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Easy    | Daily          | [solution](<markdowns/_826. Most Profit Assigning Work.md>)                                                  | py                               |
-|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Easy    | Daily, N150    | [solution](<markdowns/_846. Hand of Straights.md>)                                                           | py                               |
-|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Easy    |                | [solution](<markdowns/_848. Shifting Letters.md>)                                                            | py                               |
-|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Easy    |                | [solution](<markdowns/_849. Maximize Distance to Closest Person.md>)                                         | py                               |
-|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Easy    | N150           | [solution](<markdowns/_853. Car Fleet.md>)                                                                   | py                               |
-|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                                             | Easy    |                | [solution](<markdowns/_856. Score of Parentheses.md>)                                                        | py                               |
-|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Easy    |                | [solution](<markdowns/_861. Score After Flipping Matrix.md>)                                                 | c, py                            |
-|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                                               | Easy    |                | [solution](<markdowns/_863. All Nodes Distance K in Binary Tree.md>)                                         | py                               |
+|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                                                   | Medium  | Weekly Premium | [solution](<markdowns/_776. Split BST.md>)                                                                   | py                               |
+|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                                       | Medium  |                | [solution](<markdowns/_784. Letter Case Permutation.md>)                                                     | py                               |
+|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                                 | Medium  |                | [solution](<markdowns/_791. Custom Sort String.md>)                                                          | java                             |
+|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Medium  |                | [solution](<markdowns/_794. Valid Tic-Tac-Toe State.md>)                                                     | py                               |
+|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Medium  |                | [solution](<markdowns/_807. Max Increase to Keep City Skyline.md>)                                           | java                             |
+|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Medium  |                | [solution](<markdowns/_817. Linked List Components.md>)                                                      | java                             |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Medium  | Daily          | [solution](<markdowns/_826. Most Profit Assigning Work.md>)                                                  | py                               |
+|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Medium  | Daily, N150    | [solution](<markdowns/_846. Hand of Straights.md>)                                                           | py                               |
+|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Medium  |                | [solution](<markdowns/_848. Shifting Letters.md>)                                                            | py                               |
+|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Medium  |                | [solution](<markdowns/_849. Maximize Distance to Closest Person.md>)                                         | py                               |
+|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Medium  | N150           | [solution](<markdowns/_853. Car Fleet.md>)                                                                   | py                               |
+|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                                             | Medium  |                | [solution](<markdowns/_856. Score of Parentheses.md>)                                                        | py                               |
+|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Medium  |                | [solution](<markdowns/_861. Score After Flipping Matrix.md>)                                                 | c, py                            |
+|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                                               | Medium  |                | [solution](<markdowns/_863. All Nodes Distance K in Binary Tree.md>)                                         | py                               |
 |  867 | [Transpose Matrix](<https://leetcode.com/problems/transpose-matrix>)                                                                                                                     | Easy    |                | [solution](<markdowns/_867. Transpose Matrix.md>)                                                            | py                               |
-|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Easy    |                | [solution](<markdowns/_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py         |
-|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Easy    |                | [solution](<markdowns/_890. Find and Replace Pattern.md>)                                                    | py                               |
+|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Medium  |                | [solution](<markdowns/_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py         |
+|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Medium  |                | [solution](<markdowns/_890. Find and Replace Pattern.md>)                                                    | py                               |
 |  895 | [Maximum Frequency Stack](<https://leetcode.com/problems/maximum-frequency-stack>)                                                                                                       | Hard    |                | [solution](<markdowns/_895. Maximum Frequency Stack.md>)                                                     | java, py                         |
-|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Easy    |                | [solution](<markdowns/_909. Snakes and Ladders.md>)                                                          | py                               |
-|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                                           | Easy    |                | [solution](<markdowns/_919. Complete Binary Tree Inserter.md>)                                               | py                               |
-|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                                           | Easy    |                | [solution](<markdowns/_921. Minimum Add to Make Parentheses Valid.md>)                                       | java, py                         |
-|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Easy    |                | [solution](<markdowns/_930. Binary Subarrays With Sum.md>)                                                   | py                               |
-|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Easy    | Daily          | [solution](<markdowns/_945. Minimum Increment to Make Array Unique.md>)                                      | py                               |
-|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Easy    |                | [solution](<markdowns/_946. Validate Stack Sequences.md>)                                                    | c, py                            |
-|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Easy    |                | [solution](<markdowns/_950. Reveal Cards In Increasing Order.md>)                                            | py                               |
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Easy    | N150           | [solution](<markdowns/_973. K Closest Points to Origin.md>)                                                  | py                               |
-|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Easy    | Daily          | [solution](<markdowns/_974. Subarray Sums Divisible by K.md>)                                                | java, py                         |
+|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Medium  |                | [solution](<markdowns/_909. Snakes and Ladders.md>)                                                          | py                               |
+|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                                           | Medium  |                | [solution](<markdowns/_919. Complete Binary Tree Inserter.md>)                                               | py                               |
+|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                                           | Medium  |                | [solution](<markdowns/_921. Minimum Add to Make Parentheses Valid.md>)                                       | java, py                         |
+|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Medium  |                | [solution](<markdowns/_930. Binary Subarrays With Sum.md>)                                                   | py                               |
+|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Medium  | Daily          | [solution](<markdowns/_945. Minimum Increment to Make Array Unique.md>)                                      | py                               |
+|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Medium  |                | [solution](<markdowns/_946. Validate Stack Sequences.md>)                                                    | c, py                            |
+|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Medium  |                | [solution](<markdowns/_950. Reveal Cards In Increasing Order.md>)                                            | py                               |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Medium  | N150           | [solution](<markdowns/_973. K Closest Points to Origin.md>)                                                  | py                               |
+|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Medium  | Daily          | [solution](<markdowns/_974. Subarray Sums Divisible by K.md>)                                                | java, py                         |
 |  977 | [Squares of a Sorted Array](<https://leetcode.com/problems/squares-of-a-sorted-array>)                                                                                                   | Easy    |                | [solution](<markdowns/_977. Squares of a Sorted Array.md>)                                                   | py                               |
 |  987 | [Vertical Order Traversal of a Binary Tree](<https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree>)                                                                   | Hard    |                | [solution](<markdowns/_987. Vertical Order Traversal of a Binary Tree.md>)                                   | py                               |
 |  993 | [Cousins in Binary Tree](<https://leetcode.com/problems/cousins-in-binary-tree>)                                                                                                         | Easy    |                | [solution](<markdowns/_993. Cousins in Binary Tree.md>)                                                      | py                               |
-|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Easy    | N150           | [solution](<markdowns/_994. Rotting Oranges.md>)                                                             | py                               |
+|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Medium  | N150           | [solution](<markdowns/_994. Rotting Oranges.md>)                                                             | py                               |
 |  995 | [Minimum Number of K Consecutive Bit Flips](<https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips>)                                                                   | Hard    | Daily          | [solution](<markdowns/_995. Minimum Number of K Consecutive Bit Flips.md>)                                   | c, py                            |
 | 1002 | [Find Common Characters](<https://leetcode.com/problems/find-common-characters>)                                                                                                         | Easy    | Daily          | [solution](<markdowns/_1002. Find Common Characters.md>)                                                     | py                               |
-| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                                                     | Easy    |                | [solution](<markdowns/_1006. Clumsy Factorial.md>)                                                           | c, py                            |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Easy    |                | [solution](<markdowns/_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java                     |
+| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                                                     | Medium  |                | [solution](<markdowns/_1006. Clumsy Factorial.md>)                                                           | c, py                            |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Medium  |                | [solution](<markdowns/_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java                     |
 | 1018 | [Binary Prefix Divisible By 5](<https://leetcode.com/problems/binary-prefix-divisible-by-5>)                                                                                             | Easy    |                | [solution](<markdowns/_1018. Binary Prefix Divisible By 5.md>)                                               | py                               |
-| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Easy    |                | [solution](<markdowns/_1019. Next Greater Node In Linked List.md>)                                           | py                               |
-| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Easy    |                | [solution](<markdowns/_1020. Number of Enclaves.md>)                                                         | py                               |
-| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                                                             | Easy    |                | [solution](<markdowns/_1026. Maximum Difference Between Node and Ancestor.md>)                               | py                               |
+| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Medium  |                | [solution](<markdowns/_1019. Next Greater Node In Linked List.md>)                                           | py                               |
+| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Medium  |                | [solution](<markdowns/_1020. Number of Enclaves.md>)                                                         | py                               |
+| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                                                             | Medium  |                | [solution](<markdowns/_1026. Maximum Difference Between Node and Ancestor.md>)                               | py                               |
 | 1028 | [Recover a Tree From Preorder Traversal](<https://leetcode.com/problems/recover-a-tree-from-preorder-traversal>)                                                                         | Hard    |                | [solution](<markdowns/_1028. Recover a Tree From Preorder Traversal.md>)                                     | py                               |
 | 1030 | [Matrix Cells in Distance Order](<https://leetcode.com/problems/matrix-cells-in-distance-order>)                                                                                         | Easy    |                | [solution](<markdowns/_1030. Matrix Cells in Distance Order.md>)                                             | py                               |
-| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Easy    | Daily          | [solution](<markdowns/_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                                |
+| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Medium  | Daily          | [solution](<markdowns/_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                                |
 | 1046 | [Last Stone Weight](<https://leetcode.com/problems/last-stone-weight>)                                                                                                                   | Easy    | N150           | [solution](<markdowns/_1046. Last Stone Weight.md>)                                                          | py                               |
 | 1051 | [Height Checker](<https://leetcode.com/problems/height-checker>)                                                                                                                         | Easy    | Daily          | [solution](<markdowns/_1051. Height Checker.md>)                                                             | c, py                            |
-| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Easy    | Daily          | [solution](<markdowns/_1052. Grumpy Bookstore Owner.md>)                                                     | py                               |
+| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Medium  | Daily          | [solution](<markdowns/_1052. Grumpy Bookstore Owner.md>)                                                     | py                               |
 | 1068 | [Product Sales Analysis I](<https://leetcode.com/problems/product-sales-analysis-i>)                                                                                                     | Easy    |                | [solution](<markdowns/_1068. Product Sales Analysis I.md>)                                                   | sql                              |
-| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                                       | Easy    |                | [solution](<markdowns/_1087. Brace Expansion.md>)                                                            | py                               |
-| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Easy    | Weekly Premium | [solution](<markdowns/_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                               |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Easy    | Daily          | [solution](<markdowns/_1110. Delete Nodes And Return Forest.md>)                                             | py                               |
+| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                                       | Medium  |                | [solution](<markdowns/_1087. Brace Expansion.md>)                                                            | py                               |
+| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Medium  | Weekly Premium | [solution](<markdowns/_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                               |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Medium  | Daily          | [solution](<markdowns/_1110. Delete Nodes And Return Forest.md>)                                             | py                               |
 | 1122 | [Relative Sort Array](<https://leetcode.com/problems/relative-sort-array>)                                                                                                               | Easy    | Daily          | [solution](<markdowns/_1122. Relative Sort Array.md>)                                                        | java, py                         |
-| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                                                 | Easy    |                | [solution](<markdowns/_1161. Maximum Level Sum of a Binary Tree.md>)                                         | py                               |
-| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                                 | Easy    |                | [solution](<markdowns/_1166. Design File System.md>)                                                         | py                               |
-| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                                 | Easy    |                | [solution](<markdowns/_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                         | py                               |
+| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                                                 | Medium  |                | [solution](<markdowns/_1161. Maximum Level Sum of a Binary Tree.md>)                                         | py                               |
+| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                                 | Medium  |                | [solution](<markdowns/_1166. Design File System.md>)                                                         | py                               |
+| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                                 | Medium  |                | [solution](<markdowns/_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                         | py                               |
 | 1184 | [Distance Between Bus Stops](<https://leetcode.com/problems/distance-between-bus-stops>)                                                                                                 | Easy    |                | [solution](<markdowns/_1184. Distance Between Bus Stops.md>)                                                 | py                               |
-| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Easy    | Daily          | [solution](<markdowns/_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                               |
-| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                                               | Easy    |                | [solution](<markdowns/_1209. Remove All Adjacent Duplicates in String II.md>)                                | py                               |
-| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Easy    |                | [solution](<markdowns/_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                               |
-| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Easy    |                | [solution](<markdowns/_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                               |
-| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Easy    |                | [solution](<markdowns/_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                               |
-| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Easy    | Daily          | [solution](<markdowns/_1248. Count Number of Nice Subarrays.md>)                                             | py                               |
-| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                                     | Easy    |                | [solution](<markdowns/_1249. Minimum Remove to Make Valid Parentheses.md>)                                   | py                               |
+| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Medium  | Daily          | [solution](<markdowns/_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                               |
+| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                                               | Medium  |                | [solution](<markdowns/_1209. Remove All Adjacent Duplicates in String II.md>)                                | py                               |
+| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Medium  |                | [solution](<markdowns/_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                               |
+| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Medium  |                | [solution](<markdowns/_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                               |
+| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Medium  |                | [solution](<markdowns/_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                               |
+| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Medium  | Daily          | [solution](<markdowns/_1248. Count Number of Nice Subarrays.md>)                                             | py                               |
+| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                                     | Medium  |                | [solution](<markdowns/_1249. Minimum Remove to Make Valid Parentheses.md>)                                   | py                               |
 | 1252 | [Cells with Odd Values in a Matrix](<https://leetcode.com/problems/cells-with-odd-values-in-a-matrix>)                                                                                   | Easy    |                | [solution](<markdowns/_1252. Cells with Odd Values in a Matrix.md>)                                          | c                                |
-| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Easy    |                | [solution](<markdowns/_1254. Number of Closed Islands.md>)                                                   | py                               |
+| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Medium  |                | [solution](<markdowns/_1254. Number of Closed Islands.md>)                                                   | py                               |
 | 1255 | [Maximum Score Words Formed by Letters](<https://leetcode.com/problems/maximum-score-words-formed-by-letters>)                                                                           | Hard    |                | [solution](<markdowns/_1255. Maximum Score Words Formed by Letters.md>)                                      | py                               |
-| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                                         | Easy    |                | [solution](<markdowns/_1265. Print Immutable Linked List in Reverse.md>)                                     | c, py                            |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Easy    |                | [solution](<markdowns/_1268. Search Suggestions System.md>)                                                  | py                               |
-| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Easy    |                | [solution](<markdowns/_1282. Group the People Given the Group Size They Belong To.md>)                       | py                               |
+| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                                         | Medium  |                | [solution](<markdowns/_1265. Print Immutable Linked List in Reverse.md>)                                     | c, py                            |
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Medium  |                | [solution](<markdowns/_1268. Search Suggestions System.md>)                                                  | py                               |
+| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Medium  |                | [solution](<markdowns/_1282. Group the People Given the Group Size They Belong To.md>)                       | py                               |
 | 1284 | [Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](<https://leetcode.com/problems/minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix>)                       | Hard    |                | [solution](<markdowns/_1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix.md>)            | py                               |
-| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                                                 | Easy    |                | [solution](<markdowns/_1302. Deepest Leaves Sum.md>)                                                         | c, js, py                        |
-| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                                       | Easy    |                | [solution](<markdowns/_1305. All Elements in Two Binary Search Trees.md>)                                    | java                             |
-| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                                                   | Easy    |                | [solution](<markdowns/_1315. Sum of Nodes with Even-Valued Grandparent.md>)                                  | py                               |
+| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                                                 | Medium  |                | [solution](<markdowns/_1302. Deepest Leaves Sum.md>)                                                         | c, js, py                        |
+| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                                       | Medium  |                | [solution](<markdowns/_1305. All Elements in Two Binary Search Trees.md>)                                    | java                             |
+| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                                                   | Medium  |                | [solution](<markdowns/_1315. Sum of Nodes with Even-Valued Grandparent.md>)                                  | py                               |
 | 1317 | [Convert Integer to the Sum of Two No-Zero Integers](<https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers>)                                                 | Easy    |                | [solution](<markdowns/_1317. Convert Integer to the Sum of Two No-Zero Integers.md>)                         | c                                |
 | 1351 | [Count Negative Numbers in a Sorted Matrix](<https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix>)                                                                   | Easy    |                | [solution](<markdowns/_1351. Count Negative Numbers in a Sorted Matrix.md>)                                  | java, py                         |
-| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                                             | Easy    |                | [solution](<markdowns/_1372. Longest ZigZag Path in a Binary Tree.md>)                                       | py                               |
+| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                                             | Medium  |                | [solution](<markdowns/_1372. Longest ZigZag Path in a Binary Tree.md>)                                       | py                               |
 | 1380 | [Lucky Numbers in a Matrix](<https://leetcode.com/problems/lucky-numbers-in-a-matrix>)                                                                                                   | Easy    | Daily          | [solution](<markdowns/_1380. Lucky Numbers in a Matrix.md>)                                                  | js, py                           |
-| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Easy    |                | [solution](<markdowns/_1381. Design a Stack With Increment Operation.md>)                                    | py                               |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Easy    | Daily          | [solution](<markdowns/_1382. Balance a Binary Search Tree.md>)                                               | py                               |
-| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Easy    | Daily          | [solution](<markdowns/_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                               |
+| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Medium  |                | [solution](<markdowns/_1381. Design a Stack With Increment Operation.md>)                                    | py                               |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Medium  | Daily          | [solution](<markdowns/_1382. Balance a Binary Search Tree.md>)                                               | py                               |
+| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Medium  | Daily          | [solution](<markdowns/_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                               |
 | 1426 | [Counting Elements](<https://leetcode.com/problems/counting-elements>)                                                                                                                   | Easy    |                | [solution](<markdowns/_1426. Counting Elements.md>)                                                          | c                                |
 | 1436 | [Destination City](<https://leetcode.com/problems/destination-city>)                                                                                                                     | Easy    |                | [solution](<markdowns/_1436. Destination City.md>)                                                           | java                             |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily          | [solution](<markdowns/_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                             |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Easy    | Daily          | [solution](<markdowns/_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                               |
-| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                                       | Easy    | N150           | [solution](<markdowns/_1448. Count Good Nodes in Binary Tree.md>)                                            | java                             |
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily          | [solution](<markdowns/_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                             |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Medium  | Daily          | [solution](<markdowns/_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                               |
+| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                                       | Medium  | N150           | [solution](<markdowns/_1448. Count Good Nodes in Binary Tree.md>)                                            | java                             |
 | 1455 | [Check If a Word Occurs As a Prefix of Any Word in a Sentence](<https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence>)                             | Easy    |                | [solution](<markdowns/_1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence.md>)               | py                               |
-| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                                   | Easy    |                | [solution](<markdowns/_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                                  | py                               |
+| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                                   | Medium  |                | [solution](<markdowns/_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                                  | py                               |
 | 1460 | [Make Two Arrays Equal by Reversing Subarrays](<https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays>)                                                             | Easy    |                | [solution](<markdowns/_1460. Make Two Arrays Equal by Reversing Subarrays.md>)                               | c                                |
-| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                                           | Easy    |                | [solution](<markdowns/_1461. Check If a String Contains All Binary Codes of Size K.md>)                      | py                               |
+| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                                           | Medium  |                | [solution](<markdowns/_1461. Check If a String Contains All Binary Codes of Size K.md>)                      | py                               |
 | 1470 | [Shuffle the Array](<https://leetcode.com/problems/shuffle-the-array>)                                                                                                                   | Easy    |                | [solution](<markdowns/_1470. Shuffle the Array.md>)                                                          | c                                |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Easy    |                | [solution](<markdowns/_1472. Design Browser History.md>)                                                     | py                               |
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Medium  |                | [solution](<markdowns/_1472. Design Browser History.md>)                                                     | py                               |
 | 1474 | [Delete N Nodes After M Nodes of a Linked List](<https://leetcode.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list>)                                                           | Easy    |                | [solution](<markdowns/_1474. Delete N Nodes After M Nodes of a Linked List.md>)                              | c, java                          |
-| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Easy    |                | [solution](<markdowns/_1481. Least Number of Unique Integers after K Removals.md>)                           | py                               |
-| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Easy    |                | [solution](<markdowns/_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                               |
-| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                                                     | Easy    |                | [solution](<markdowns/_1490. Clone N-ary Tree.md>)                                                           | java, py                         |
+| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Medium  |                | [solution](<markdowns/_1481. Least Number of Unique Integers after K Removals.md>)                           | py                               |
+| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Medium  |                | [solution](<markdowns/_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                               |
+| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                                                     | Medium  |                | [solution](<markdowns/_1490. Clone N-ary Tree.md>)                                                           | java, py                         |
 | 1502 | [Can Make Arithmetic Progression From Sequence](<https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence>)                                                           | Easy    |                | [solution](<markdowns/_1502. Can Make Arithmetic Progression From Sequence.md>)                              | c, py                            |
-| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Easy    | Daily          | [solution](<markdowns/_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py                 |
+| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Medium  | Daily          | [solution](<markdowns/_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py                 |
 | 1518 | [Water Bottles](<https://leetcode.com/problems/water-bottles>)                                                                                                                           | Easy    | Daily          | [solution](<markdowns/_1518. Water Bottles.md>)                                                              | c, cpp, cs, java, js, py, ts     |
-| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                                                         | Easy    |                | [solution](<markdowns/_1522. Diameter of N-Ary Tree.md>)                                                     | py                               |
-| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                                           | Easy    |                | [solution](<markdowns/_1525. Number of Good Ways to Split a String.md>)                                      | py                               |
-| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Easy    | Daily          | [solution](<markdowns/_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                               |
-| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Easy    |                | [solution](<markdowns/_1535. Find the Winner of an Array Game.md>)                                           | py                               |
+| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                                                         | Medium  |                | [solution](<markdowns/_1522. Diameter of N-Ary Tree.md>)                                                     | py                               |
+| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                                           | Medium  |                | [solution](<markdowns/_1525. Number of Good Ways to Split a String.md>)                                      | py                               |
+| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Medium  | Daily          | [solution](<markdowns/_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                               |
+| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Medium  |                | [solution](<markdowns/_1535. Find the Winner of an Array Game.md>)                                           | py                               |
 | 1550 | [Three Consecutive Odds](<https://leetcode.com/problems/three-consecutive-odds>)                                                                                                         | Easy    | Daily          | [solution](<markdowns/_1550. Three Consecutive Odds.md>)                                                     | c, py                            |
-| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                                         | Easy    |                | [solution](<markdowns/_1551. Minimum Operations to Make Array Equal.md>)                                     | c, java, js, kt, py, rb, rs      |
-| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Easy    | Daily          | [solution](<markdowns/_1552. Magnetic Force Between Two Balls.md>)                                           | py                               |
-| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Easy    |                | [solution](<markdowns/_1561. Maximum Number of Coins You Can Get.md>)                                        | py                               |
-| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Easy    |                | [solution](<markdowns/_1564. Put Boxes Into the Warehouse I.md>)                                             | py                               |
-| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Easy    |                | [solution](<markdowns/_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py                      |
+| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                                         | Medium  |                | [solution](<markdowns/_1551. Minimum Operations to Make Array Equal.md>)                                     | c, java, js, kt, py, rb, rs      |
+| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Medium  | Daily          | [solution](<markdowns/_1552. Magnetic Force Between Two Balls.md>)                                           | py                               |
+| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Medium  |                | [solution](<markdowns/_1561. Maximum Number of Coins You Can Get.md>)                                        | py                               |
+| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Medium  |                | [solution](<markdowns/_1564. Put Boxes Into the Warehouse I.md>)                                             | py                               |
+| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Medium  |                | [solution](<markdowns/_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py                      |
 | 1579 | [Remove Max Number of Edges to Keep Graph Fully Traversable](<https://leetcode.com/problems/remove-max-number-of-edges-to-keep-graph-fully-traversable>)                                 | Hard    | Daily          | [solution](<markdowns/_1579. Remove Max Number of Edges to Keep Graph Fully Traversable.md>)                 | py                               |
-| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Easy    | Weekly Premium | [solution](<markdowns/_1580. Put Boxes Into the Warehouse II.md>)                                            | py                               |
+| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Medium  | Weekly Premium | [solution](<markdowns/_1580. Put Boxes Into the Warehouse II.md>)                                            | py                               |
 | 1598 | [Crawler Log Folder](<https://leetcode.com/problems/crawler-log-folder>)                                                                                                                 | Easy    | Daily          | [solution](<markdowns/_1598. Crawler Log Folder.md>)                                                         | c, js                            |
-| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                                         | Easy    |                | [solution](<markdowns/_1602. Find Nearest Right Node in Binary Tree.md>)                                     | java, py                         |
-| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Easy    | Daily          | [solution](<markdowns/_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                               |
-| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                                           | Easy    |                | [solution](<markdowns/_1609. Even Odd Tree.md>)                                                              | py                               |
-| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                                                 | Easy    |                | [solution](<markdowns/_1641. Count Sorted Vowel Strings.md>)                                                 | c, cpp, java                     |
-| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                                               | Easy    |                | [solution](<markdowns/_1650. Lowest Common Ancestor of a Binary Tree III.md>)                                | py                               |
-| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                                 | Easy    |                | [solution](<markdowns/_1657. Determine if Two Strings Are Close.md>)                                         | py                               |
-| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                                           | Easy    |                | [solution](<markdowns/_1660. Correct a Binary Tree.md>)                                                      | py                               |
-| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                                           | Easy    |                | [solution](<markdowns/_1669. Merge In Between Linked Lists.md>)                                              | c                                |
-| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                                                 | Easy    |                | [solution](<markdowns/_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                                 | py                               |
+| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                                         | Medium  |                | [solution](<markdowns/_1602. Find Nearest Right Node in Binary Tree.md>)                                     | java, py                         |
+| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Medium  | Daily          | [solution](<markdowns/_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                               |
+| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                                           | Medium  |                | [solution](<markdowns/_1609. Even Odd Tree.md>)                                                              | py                               |
+| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                                                 | Medium  |                | [solution](<markdowns/_1641. Count Sorted Vowel Strings.md>)                                                 | c, cpp, java                     |
+| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                                               | Medium  |                | [solution](<markdowns/_1650. Lowest Common Ancestor of a Binary Tree III.md>)                                | py                               |
+| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                                 | Medium  |                | [solution](<markdowns/_1657. Determine if Two Strings Are Close.md>)                                         | py                               |
+| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                                           | Medium  |                | [solution](<markdowns/_1660. Correct a Binary Tree.md>)                                                      | py                               |
+| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                                           | Medium  |                | [solution](<markdowns/_1669. Merge In Between Linked Lists.md>)                                              | c                                |
+| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                                                 | Medium  |                | [solution](<markdowns/_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                                 | py                               |
 | 1684 | [Count the Number of Consistent Strings](<https://leetcode.com/problems/count-the-number-of-consistent-strings>)                                                                         | Easy    |                | [solution](<markdowns/_1684. Count the Number of Consistent Strings.md>)                                     | c, py                            |
-| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                                       | Easy    |                | [solution](<markdowns/_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)                    | c, java                          |
-| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Easy    |                | [solution](<markdowns/_1696. Jump Game VI.md>)                                                               | java, py                         |
-| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                                   | Easy    |                | [solution](<markdowns/_1698. Number of Distinct Substrings in a String.md>)                                  | java, py                         |
+| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                                       | Medium  |                | [solution](<markdowns/_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)                    | c, java                          |
+| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Medium  |                | [solution](<markdowns/_1696. Jump Game VI.md>)                                                               | java, py                         |
+| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                                   | Medium  |                | [solution](<markdowns/_1698. Number of Distinct Substrings in a String.md>)                                  | java, py                         |
 | 1700 | [Number of Students Unable to Eat Lunch](<https://leetcode.com/problems/number-of-students-unable-to-eat-lunch>)                                                                         | Easy    |                | [solution](<markdowns/_1700. Number of Students Unable to Eat Lunch.md>)                                     | py                               |
-| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Easy    | Daily          | [solution](<markdowns/_1701. Average Waiting Time.md>)                                                       | js, py                           |
-| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Easy    | Daily          | [solution](<markdowns/_1717. Maximum Score From Removing Substrings.md>)                                     | py                               |
-| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                                       | Easy    |                | [solution](<markdowns/_1721. Swapping Nodes in a Linked List.md>)                                            | c                                |
-| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Easy    |                | [solution](<markdowns/_1730. Shortest Path to Get Food.md>)                                                  | py                               |
+| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Medium  | Daily          | [solution](<markdowns/_1701. Average Waiting Time.md>)                                                       | js, py                           |
+| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Medium  | Daily          | [solution](<markdowns/_1717. Maximum Score From Removing Substrings.md>)                                     | py                               |
+| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                                       | Medium  |                | [solution](<markdowns/_1721. Swapping Nodes in a Linked List.md>)                                            | c                                |
+| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Medium  |                | [solution](<markdowns/_1730. Shortest Path to Get Food.md>)                                                  | py                               |
 | 1736 | [Latest Time by Replacing Hidden Digits](<https://leetcode.com/problems/latest-time-by-replacing-hidden-digits>)                                                                         | Easy    |                | [solution](<markdowns/_1736. Latest Time by Replacing Hidden Digits.md>)                                     | c                                |
-| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                                         | Easy    | Weekly Premium | [solution](<markdowns/_1740. Find Distance in a Binary Tree.md>)                                             | py                               |
-| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Easy    |                | [solution](<markdowns/_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                               |
+| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                                         | Medium  | Weekly Premium | [solution](<markdowns/_1740. Find Distance in a Binary Tree.md>)                                             | py                               |
+| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Medium  |                | [solution](<markdowns/_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                               |
 | 1748 | [Sum of Unique Elements](<https://leetcode.com/problems/sum-of-unique-elements>)                                                                                                         | Easy    |                | [solution](<markdowns/_1748. Sum of Unique Elements.md>)                                                     | c                                |
-| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                                           | Easy    |                | [solution](<markdowns/_1759. Count Number of Homogenous Substrings.md>)                                      | c, java                          |
-| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Easy    |                | [solution](<markdowns/_1762. Buildings With an Ocean View.md>)                                               | py                               |
+| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                                           | Medium  |                | [solution](<markdowns/_1759. Count Number of Homogenous Substrings.md>)                                      | c, java                          |
+| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Medium  |                | [solution](<markdowns/_1762. Buildings With an Ocean View.md>)                                               | py                               |
 | 1768 | [Merge Strings Alternately](<https://leetcode.com/problems/merge-strings-alternately>)                                                                                                   | Easy    |                | [solution](<markdowns/_1768. Merge Strings Alternately.md>)                                                  | java                             |
-| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                                                                                   | Easy    |                | [solution](<markdowns/_1783. Grand Slam Titles.md>)                                                          | sql                              |
+| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                                                                                   | Medium  |                | [solution](<markdowns/_1783. Grand Slam Titles.md>)                                                          | sql                              |
 | 1791 | [Find Center of Star Graph](<https://leetcode.com/problems/find-center-of-star-graph>)                                                                                                   | Easy    | Daily          | [solution](<markdowns/_1791. Find Center of Star Graph.md>)                                                  | c, cpp, java, py                 |
-| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                                         | Easy    |                | [solution](<markdowns/_1804. Implement Trie II (Prefix Tree).md>)                                            | py                               |
+| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                                         | Medium  |                | [solution](<markdowns/_1804. Implement Trie II (Prefix Tree).md>)                                            | py                               |
 | 1822 | [Sign of the Product of an Array](<https://leetcode.com/problems/sign-of-the-product-of-an-array>)                                                                                       | Easy    |                | [solution](<markdowns/_1822. Sign of the Product of an Array.md>)                                            | c                                |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Easy    | Daily          | [solution](<markdowns/_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py             |
-| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Easy    |                | [solution](<markdowns/_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py                      |
-| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                                         | Easy    | Weekly Premium | [solution](<markdowns/_1836. Remove Duplicates From an Unsorted Linked List.md>)                             | java, py                         |
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Medium  | Daily          | [solution](<markdowns/_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py             |
+| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Medium  |                | [solution](<markdowns/_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py                      |
+| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                                         | Medium  | Weekly Premium | [solution](<markdowns/_1836. Remove Duplicates From an Unsorted Linked List.md>)                             | java, py                         |
 | 1844 | [Replace All Digits with Characters](<https://leetcode.com/problems/replace-all-digits-with-characters>)                                                                                 | Easy    |                | [solution](<markdowns/_1844. Replace All Digits with Characters.md>)                                         | py                               |
-| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Easy    |                | [solution](<markdowns/_1852. Distinct Numbers in Each Subarray.md>)                                          | java                             |
-| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                                                         | Easy    |                | [solution](<markdowns/_1858. Longest Word With All Prefixes.md>)                                             | py                               |
-| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Easy    |                | [solution](<markdowns/_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                          |
-| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Easy    |                | [solution](<markdowns/_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                               |
-| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                                                   | Easy    |                | [solution](<markdowns/_1884. Egg Drop With 2 Eggs and N Floors.md>)                                          | c, java, js                      |
-| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Easy    | Weekly Premium | [solution](<markdowns/_1885. Count Pairs in Two Arrays.md>)                                                  | py                               |
-| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Easy    |                | [solution](<markdowns/_1905. Count Sub Islands.md>)                                                          | py                               |
+| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Medium  |                | [solution](<markdowns/_1852. Distinct Numbers in Each Subarray.md>)                                          | java                             |
+| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                                                         | Medium  |                | [solution](<markdowns/_1858. Longest Word With All Prefixes.md>)                                             | py                               |
+| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Medium  |                | [solution](<markdowns/_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                          |
+| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Medium  |                | [solution](<markdowns/_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                               |
+| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                                                   | Medium  |                | [solution](<markdowns/_1884. Egg Drop With 2 Eggs and N Floors.md>)                                          | c, java, js                      |
+| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Medium  | Weekly Premium | [solution](<markdowns/_1885. Count Pairs in Two Arrays.md>)                                                  | py                               |
+| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Medium  |                | [solution](<markdowns/_1905. Count Sub Islands.md>)                                                          | py                               |
 | 1909 | [Remove One Element to Make the Array Strictly Increasing](<https://leetcode.com/problems/remove-one-element-to-make-the-array-strictly-increasing>)                                     | Easy    |                | [solution](<markdowns/_1909. Remove One Element to Make the Array Strictly Increasing.md>)                   | c                                |
 | 1929 | [Concatenation of Array](<https://leetcode.com/problems/concatenation-of-array>)                                                                                                         | Easy    |                | [solution](<markdowns/_1929. Concatenation of Array.md>)                                                     | c, java, py                      |
-| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Easy    | Weekly Premium | [solution](<markdowns/_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                         |
-| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                                                       | Easy    |                | [solution](<markdowns/_1973. Count Nodes Equal to Sum of Descendants.md>)                                    | c                                |
-| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Easy    |                | [solution](<markdowns/_1980. Find Unique Binary String.md>)                                                  | c, py                            |
-| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Easy    |                | [solution](<markdowns/_1992. Find All Groups of Farmland.md>)                                                | java, py                         |
+| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Medium  | Weekly Premium | [solution](<markdowns/_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                         |
+| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                                                       | Medium  |                | [solution](<markdowns/_1973. Count Nodes Equal to Sum of Descendants.md>)                                    | c                                |
+| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Medium  |                | [solution](<markdowns/_1980. Find Unique Binary String.md>)                                                  | c, py                            |
+| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Medium  |                | [solution](<markdowns/_1992. Find All Groups of Farmland.md>)                                                | java, py                         |
 | 2011 | [Final Value of Variable After Performing Operations](<https://leetcode.com/problems/final-value-of-variable-after-performing-operations>)                                               | Easy    |                | [solution](<markdowns/_2011. Final Value of Variable After Performing Operations.md>)                        | c                                |
-| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Easy    | N150           | [solution](<markdowns/_2013. Detect Squares.md>)                                                             | py                               |
+| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Medium  | N150           | [solution](<markdowns/_2013. Detect Squares.md>)                                                             | py                               |
 | 2037 | [Minimum Number of Moves to Seat Everyone](<https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone>)                                                                     | Easy    | Daily          | [solution](<markdowns/_2037. Minimum Number of Moves to Seat Everyone.md>)                                   | c, py                            |
-| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                                           | Easy    |                | [solution](<markdowns/_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                      | py                               |
-| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Easy    | Daily          | [solution](<markdowns/_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                    |
-| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                                 | Easy    | Weekly Premium | [solution](<markdowns/_2083. Substrings That Begin and End With the Same Letter.md>)                         | c, py                            |
-| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                               | Easy    |                | [solution](<markdowns/_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                        | java                             |
-| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                                       | Easy    |                | [solution](<markdowns/_2095. Delete the Middle Node of a Linked List.md>)                                    | c, java                          |
-| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Easy    | Daily          | [solution](<markdowns/_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                               |
-| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                                   | Easy    |                | [solution](<markdowns/_2130. Maximum Twin Sum of a Linked List.md>)                                          | py                               |
-| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Easy    |                | [solution](<markdowns/_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                            |
-| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                                       | Easy    |                | [solution](<markdowns/_2165. Smallest Value of the Rearranged Number.md>)                                    | py                               |
-| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Easy    | Daily          | [solution](<markdowns/_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py                 |
-| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Easy    | Daily          | [solution](<markdowns/_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                         |
-| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Easy    | Daily          | [solution](<markdowns/_2196. Create Binary Tree From Descriptions.md>)                                       | py                               |
+| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                                           | Medium  |                | [solution](<markdowns/_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                      | py                               |
+| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Medium  | Daily          | [solution](<markdowns/_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                    |
+| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                                 | Medium  | Weekly Premium | [solution](<markdowns/_2083. Substrings That Begin and End With the Same Letter.md>)                         | c, py                            |
+| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                               | Medium  |                | [solution](<markdowns/_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                        | java                             |
+| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                                       | Medium  |                | [solution](<markdowns/_2095. Delete the Middle Node of a Linked List.md>)                                    | c, java                          |
+| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Medium  | Daily          | [solution](<markdowns/_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                               |
+| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                                   | Medium  |                | [solution](<markdowns/_2130. Maximum Twin Sum of a Linked List.md>)                                          | py                               |
+| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Medium  |                | [solution](<markdowns/_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                            |
+| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                                       | Medium  |                | [solution](<markdowns/_2165. Smallest Value of the Rearranged Number.md>)                                    | py                               |
+| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Medium  | Daily          | [solution](<markdowns/_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py                 |
+| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Medium  | Daily          | [solution](<markdowns/_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                         |
+| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Medium  | Daily          | [solution](<markdowns/_2196. Create Binary Tree From Descriptions.md>)                                       | py                               |
 | 2206 | [Divide Array Into Equal Pairs](<https://leetcode.com/problems/divide-array-into-equal-pairs>)                                                                                           | Easy    |                | [solution](<markdowns/_2206. Divide Array Into Equal Pairs.md>)                                              | c, py                            |
-| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                                 | Easy    |                | [solution](<markdowns/_2211. Count Collisions on a Road.md>)                                                 | py                               |
-| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Easy    |                | [solution](<markdowns/_2221. Find Triangular Sum of an Array.md>)                                            | c, java                          |
-| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Easy    |                | [solution](<markdowns/_2225. Find Players With Zero or One Losses.md>)                                       | java                             |
+| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                                 | Medium  |                | [solution](<markdowns/_2211. Count Collisions on a Road.md>)                                                 | py                               |
+| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Medium  |                | [solution](<markdowns/_2221. Find Triangular Sum of an Array.md>)                                            | c, java                          |
+| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Medium  |                | [solution](<markdowns/_2225. Find Players With Zero or One Losses.md>)                                       | java                             |
 | 2248 | [Intersection of Multiple Arrays](<https://leetcode.com/problems/intersection-of-multiple-arrays>)                                                                                       | Easy    |                | [solution](<markdowns/_2248. Intersection of Multiple Arrays.md>)                                            | py                               |
 | 2258 | [Escape the Spreading Fire](<https://leetcode.com/problems/escape-the-spreading-fire>)                                                                                                   | Hard    |                | [solution](<markdowns/_2258. Escape the Spreading Fire.md>)                                                  | py                               |
-| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                                                       | Easy    |                | [solution](<markdowns/_2265. Count Nodes Equal to Average of Subtree.md>)                                    | js, py                           |
-| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                             | Easy    |                | [solution](<markdowns/_2268. Minimum Number of Keypresses.md>)                                               | py                               |
-| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Easy    | Daily          | [solution](<markdowns/_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py                 |
-| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Easy    |                | [solution](<markdowns/_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py                 |
-| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Easy    |                | [solution](<markdowns/_2352. Equal Row and Column Pairs.md>)                                                 | py                               |
-| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Easy    |                | [solution](<markdowns/_2365. Task Scheduler II.md>)                                                          | py                               |
-| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                                             | Easy    |                | [solution](<markdowns/_2374. Node With Highest Edge Score.md>)                                               | py                               |
-| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                                           | Easy    |                | [solution](<markdowns/_2385. Amount of Time for Binary Tree to Be Infected.md>)                              | py                               |
+| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                                                       | Medium  |                | [solution](<markdowns/_2265. Count Nodes Equal to Average of Subtree.md>)                                    | js, py                           |
+| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                             | Medium  |                | [solution](<markdowns/_2268. Minimum Number of Keypresses.md>)                                               | py                               |
+| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Medium  | Daily          | [solution](<markdowns/_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py                 |
+| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Medium  |                | [solution](<markdowns/_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py                 |
+| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Medium  |                | [solution](<markdowns/_2352. Equal Row and Column Pairs.md>)                                                 | py                               |
+| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Medium  |                | [solution](<markdowns/_2365. Task Scheduler II.md>)                                                          | py                               |
+| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                                             | Medium  |                | [solution](<markdowns/_2374. Node With Highest Edge Score.md>)                                               | py                               |
+| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                                           | Medium  |                | [solution](<markdowns/_2385. Amount of Time for Binary Tree to Be Infected.md>)                              | py                               |
 | 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                                                             | Easy    |                | [solution](<markdowns/_2389. Longest Subsequence With Limited Sum.md>)                                       | py                               |
-| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                                             | Easy    |                | [solution](<markdowns/_2390. Removing Stars From a String.md>)                                               | java, py                         |
+| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                                             | Medium  |                | [solution](<markdowns/_2390. Removing Stars From a String.md>)                                               | java, py                         |
 | 2395 | [Find Subarrays With Equal Sum](<https://leetcode.com/problems/find-subarrays-with-equal-sum>)                                                                                           | Easy    |                | [solution](<markdowns/_2395. Find Subarrays With Equal Sum.md>)                                              | py                               |
-| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                                               | Easy    |                | [solution](<markdowns/_2396. Strictly Palindromic Number.md>)                                                | c, cpp, java, js, kt, py, rb, rs |
-| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                               | Easy    |                | [solution](<markdowns/_2405. Optimal Partition of String.md>)                                                | py                               |
-| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                                                   | Easy    |                | [solution](<markdowns/_2415. Reverse Odd Levels of Binary Tree.md>)                                          | py                               |
+| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                                               | Medium  |                | [solution](<markdowns/_2396. Strictly Palindromic Number.md>)                                                | c, cpp, java, js, kt, py, rb, rs |
+| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                               | Medium  |                | [solution](<markdowns/_2405. Optimal Partition of String.md>)                                                | py                               |
+| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                                                   | Medium  |                | [solution](<markdowns/_2415. Reverse Odd Levels of Binary Tree.md>)                                          | py                               |
 | 2423 | [Remove Letter To Equalize Frequency](<https://leetcode.com/problems/remove-letter-to-equalize-frequency>)                                                                               | Easy    |                | [solution](<markdowns/_2423. Remove Letter To Equalize Frequency.md>)                                        | py                               |
-| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Easy    |                | [solution](<markdowns/_2433. Find The Original Array of Prefix Xor.md>)                                      | py                               |
+| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Medium  |                | [solution](<markdowns/_2433. Find The Original Array of Prefix Xor.md>)                                      | py                               |
 | 2455 | [Average Value of Even Numbers That Are Divisible by Three](<https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three>)                                   | Easy    |                | [solution](<markdowns/_2455. Average Value of Even Numbers That Are Divisible by Three.md>)                  | java                             |
-| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Easy    |                | [solution](<markdowns/_2473. Minimum Cost to Buy Apples.md>)                                                 | py                               |
-| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Easy    |                | [solution](<markdowns/_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                               |
-| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Easy    | Daily          | [solution](<markdowns/_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                      |
-| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                                           | Easy    |                | [solution](<markdowns/_2487. Remove Nodes From Linked List.md>)                                              | py                               |
-| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Easy    |                | [solution](<markdowns/_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                         |
+| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Medium  |                | [solution](<markdowns/_2473. Minimum Cost to Buy Apples.md>)                                                 | py                               |
+| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Medium  |                | [solution](<markdowns/_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                               |
+| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Medium  | Daily          | [solution](<markdowns/_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                      |
+| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                                           | Medium  |                | [solution](<markdowns/_2487. Remove Nodes From Linked List.md>)                                              | py                               |
+| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Medium  |                | [solution](<markdowns/_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                         |
 | 2570 | [Merge Two 2D Arrays by Summing Values](<https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values>)                                                                           | Easy    |                | [solution](<markdowns/_2570. Merge Two 2D Arrays by Summing Values.md>)                                      | c                                |
 | 2582 | [Pass the Pillow](<https://leetcode.com/problems/pass-the-pillow>)                                                                                                                       | Easy    | Daily          | [solution](<markdowns/_2582. Pass the Pillow.md>)                                                            | c, cpp, cs, java, js, py         |
-| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Easy    |                | [solution](<markdowns/_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                               |
+| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Medium  |                | [solution](<markdowns/_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                               |
 | 2619 | [Array Prototype Last](<https://leetcode.com/problems/array-prototype-last>)                                                                                                             | Easy    |                | [solution](<markdowns/_2619. Array Prototype Last.md>)                                                       | js                               |
 | 2620 | [Counter](<https://leetcode.com/problems/counter>)                                                                                                                                       | Easy    |                | [solution](<markdowns/_2620. Counter.md>)                                                                    | js                               |
 | 2621 | [Sleep](<https://leetcode.com/problems/sleep>)                                                                                                                                           | Easy    |                | [solution](<markdowns/_2621. Sleep.md>)                                                                      | js                               |
-| 2623 | [Memoize](<https://leetcode.com/problems/memoize>)                                                                                                                                       | Easy    |                | [solution](<markdowns/_2623. Memoize.md>)                                                                    | js                               |
-| 2624 | [Snail Traversal](<https://leetcode.com/problems/snail-traversal>)                                                                                                                       | Easy    |                | [solution](<markdowns/_2624. Snail Traversal.md>)                                                            | js                               |
+| 2623 | [Memoize](<https://leetcode.com/problems/memoize>)                                                                                                                                       | Medium  |                | [solution](<markdowns/_2623. Memoize.md>)                                                                    | js                               |
+| 2624 | [Snail Traversal](<https://leetcode.com/problems/snail-traversal>)                                                                                                                       | Medium  |                | [solution](<markdowns/_2624. Snail Traversal.md>)                                                            | js                               |
 | 2626 | [Array Reduce Transformation](<https://leetcode.com/problems/array-reduce-transformation>)                                                                                               | Easy    |                | [solution](<markdowns/_2626. Array Reduce Transformation.md>)                                                | js                               |
 | 2629 | [Function Composition](<https://leetcode.com/problems/function-composition>)                                                                                                             | Easy    |                | [solution](<markdowns/_2629. Function Composition.md>)                                                       | js                               |
 | 2634 | [Filter Elements from Array](<https://leetcode.com/problems/filter-elements-from-array>)                                                                                                 | Easy    |                | [solution](<markdowns/_2634. Filter Elements from Array.md>)                                                 | js                               |
@@ -441,54 +441,54 @@ This repo is a collection of my LeetCode solutions, primarily written in Python,
 | 2665 | [Counter II](<https://leetcode.com/problems/counter-ii>)                                                                                                                                 | Easy    |                | [solution](<markdowns/_2665. Counter II.md>)                                                                 | js                               |
 | 2666 | [Allow One Function Call](<https://leetcode.com/problems/allow-one-function-call>)                                                                                                       | Easy    |                | [solution](<markdowns/_2666. Allow One Function Call.md>)                                                    | js                               |
 | 2667 | [Create Hello World Function](<https://leetcode.com/problems/create-hello-world-function>)                                                                                               | Easy    |                | [solution](<markdowns/_2667. Create Hello World Function.md>)                                                | js                               |
-| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                                                   | Easy    |                | [solution](<markdowns/_2671. Frequency Tracker.md>)                                                          | py                               |
+| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                                                   | Medium  |                | [solution](<markdowns/_2671. Frequency Tracker.md>)                                                          | py                               |
 | 2678 | [Number of Senior Citizens](<https://leetcode.com/problems/number-of-senior-citizens>)                                                                                                   | Easy    |                | [solution](<markdowns/_2678. Number of Senior Citizens.md>)                                                  | java                             |
-| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Easy    |                | [solution](<markdowns/_2679. Sum in a Matrix.md>)                                                            | java                             |
+| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Medium  |                | [solution](<markdowns/_2679. Sum in a Matrix.md>)                                                            | java                             |
 | 2703 | [Return Length of Arguments Passed](<https://leetcode.com/problems/return-length-of-arguments-passed>)                                                                                   | Easy    |                | [solution](<markdowns/_2703. Return Length of Arguments Passed.md>)                                          | js, ts                           |
 | 2704 | [To Be Or Not To Be](<https://leetcode.com/problems/to-be-or-not-to-be>)                                                                                                                 | Easy    |                | [solution](<markdowns/_2704. To Be Or Not To Be.md>)                                                         | js                               |
 | 2723 | [Add Two Promises](<https://leetcode.com/problems/add-two-promises>)                                                                                                                     | Easy    |                | [solution](<markdowns/_2723. Add Two Promises.md>)                                                           | js                               |
-| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                               | Easy    |                | [solution](<markdowns/_2734. Lexicographically Smallest String After Substring Operation.md>)                | py                               |
-| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Easy    | Weekly Premium | [solution](<markdowns/_2743. Count Substrings Without Repeating Character.md>)                               | java, py                         |
+| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                               | Medium  |                | [solution](<markdowns/_2734. Lexicographically Smallest String After Substring Operation.md>)                | py                               |
+| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Medium  | Weekly Premium | [solution](<markdowns/_2743. Count Substrings Without Repeating Character.md>)                               | java, py                         |
 | 2751 | [Robot Collisions](<https://leetcode.com/problems/robot-collisions>)                                                                                                                     | Hard    | Daily          | [solution](<markdowns/_2751. Robot Collisions.md>)                                                           | py                               |
 | 2796 | [Repeat String](<https://leetcode.com/problems/repeat-string>)                                                                                                                           | Easy    |                | [solution](<markdowns/_2796. Repeat String.md>)                                                              | js                               |
-| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                                         | Easy    |                | [solution](<markdowns/_2807. Insert Greatest Common Divisors in Linked List.md>)                             | py                               |
-| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                             | Easy    |                | [solution](<markdowns/_2816. Double a Number Represented as a Linked List.md>)                               | c                                |
+| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                                         | Medium  |                | [solution](<markdowns/_2807. Insert Greatest Common Divisors in Linked List.md>)                             | py                               |
+| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                             | Medium  |                | [solution](<markdowns/_2816. Double a Number Represented as a Linked List.md>)                               | c                                |
 | 2886 | [Change Data Type](<https://leetcode.com/problems/change-data-type>)                                                                                                                     | Easy    |                | [solution](<markdowns/_2886. Change Data Type.md>)                                                           | py                               |
 | 2894 | [Divisible and Non-divisible Sums Difference](<https://leetcode.com/problems/divisible-and-non-divisible-sums-difference>)                                                               | Easy    |                | [solution](<markdowns/_2894. Divisible and Non-divisible Sums Difference.md>)                                | py                               |
 | 2942 | [Find Words Containing Character](<https://leetcode.com/problems/find-words-containing-character>)                                                                                       | Easy    |                | [solution](<markdowns/_2942. Find Words Containing Character.md>)                                            | c                                |
 | 2954 | [Count the Number of Infection Sequences](<https://leetcode.com/problems/count-the-number-of-infection-sequences>)                                                                       | Hard    |                | [solution](<markdowns/_2954. Count the Number of Infection Sequences.md>)                                    | py                               |
-| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Easy    |                | [solution](<markdowns/_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                         |
-| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Easy    |                | [solution](<markdowns/_3043. Find the Length of the Longest Common Prefix.md>)                               | py                               |
+| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Medium  |                | [solution](<markdowns/_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                         |
+| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Medium  |                | [solution](<markdowns/_3043. Find the Length of the Longest Common Prefix.md>)                               | py                               |
 | 3045 | [Count Prefix and Suffix Pairs II](<https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii>)                                                                                     | Hard    |                | [solution](<markdowns/_3045. Count Prefix and Suffix Pairs II.md>)                                           | py                               |
-| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                                 | Easy    |                | [solution](<markdowns/_3064. Guess the Number Using Bitwise Questions I.md>)                                 | c, py                            |
+| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                                 | Medium  |                | [solution](<markdowns/_3064. Guess the Number Using Bitwise Questions I.md>)                                 | c, py                            |
 | 3074 | [Apple Redistribution into Boxes](<https://leetcode.com/problems/apple-redistribution-into-boxes>)                                                                                       | Easy    |                | [solution](<markdowns/_3074. Apple Redistribution into Boxes.md>)                                            | py                               |
-| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)                 | Easy    |                | [solution](<markdowns/_3106. Lexicographically Smallest String After Operations With Constraint.md>)         | py                               |
+| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)                 | Medium  |                | [solution](<markdowns/_3106. Lexicographically Smallest String After Operations With Constraint.md>)         | py                               |
 | 3110 | [Score of a String](<https://leetcode.com/problems/score-of-a-string>)                                                                                                                   | Easy    | Daily          | [solution](<markdowns/_3110. Score of a String.md>)                                                          | java, py                         |
 | 3136 | [Valid Word](<https://leetcode.com/problems/valid-word>)                                                                                                                                 | Easy    |                | [solution](<markdowns/_3136. Valid Word.md>)                                                                 | c, py                            |
-| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                                       | Easy    |                | [solution](<markdowns/_3157. Find the Level of Tree with Minimum Sum.md>)                                    | py                               |
+| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                                       | Medium  |                | [solution](<markdowns/_3157. Find the Level of Tree with Minimum Sum.md>)                                    | py                               |
 | 3168 | Weekly Contest 400 - q1 - [Minimum Number of Chairs in a Waiting Room](<https://leetcode.com/problems/minimum-number-of-chairs-in-a-waiting-room>)                                       | Easy    | Contest        | [solution](<markdowns/_3168. Minimum Number of Chairs in a Waiting Room.md>)                                 | py                               |
-| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Easy    | Contest        | [solution](<markdowns/_3169. Count Days Without Meetings.md>)                                                | py                               |
+| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Medium  | Contest        | [solution](<markdowns/_3169. Count Days Without Meetings.md>)                                                | py                               |
 | 3174 | Biweekly Contest 132 - q1 - [Clear Digits](<https://leetcode.com/problems/clear-digits>)                                                                                                 | Easy    | Contest        | [solution](<markdowns/_3174. Clear Digits.md>)                                                               | py                               |
-| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Easy    | Contest        | [solution](<markdowns/_3175. Find The First Player to win K Games in a Row.md>)                              | py                               |
+| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Medium  | Contest        | [solution](<markdowns/_3175. Find The First Player to win K Games in a Row.md>)                              | py                               |
 | 3178 | Weekly Contest 401 - q1 - [Find the Child Who Has the Ball After K Seconds](<https://leetcode.com/problems/find-the-child-who-has-the-ball-after-k-seconds>)                             | Easy    | Contest        | [solution](<markdowns/_3178. Find the Child Who Has the Ball After K Seconds.md>)                            | py                               |
-| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Easy    | Contest        | [solution](<markdowns/_3179. Find the N-th Value After K Seconds.md>)                                        | py                               |
-| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Easy    | Contest        | [solution](<markdowns/_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                            |
+| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Medium  | Contest        | [solution](<markdowns/_3179. Find the N-th Value After K Seconds.md>)                                        | py                               |
+| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Medium  | Contest        | [solution](<markdowns/_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                            |
 | 3184 | Weekly Contest 402 - q1 - [Count Pairs That Form a Complete Day I](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-i>)                                               | Easy    | Contest        | [solution](<markdowns/_3184. Count Pairs That Form a Complete Day I.md>)                                     | py                               |
-| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Easy    | Contest        | [solution](<markdowns/_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                               |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Easy    | Contest        | [solution](<markdowns/_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                               |
+| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Medium  | Contest        | [solution](<markdowns/_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                               |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Medium  | Contest        | [solution](<markdowns/_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                               |
 | 3190 | [Find Minimum Operations to Make All Elements Divisible by Three](<https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three>)                       | Easy    |                | [solution](<markdowns/_3190. Find Minimum Operations to Make All Elements Divisible by Three.md>)            | java                             |
-| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Easy    |                | [solution](<markdowns/_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                             |
-| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Easy    |                | [solution](<markdowns/_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                             |
+| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Medium  |                | [solution](<markdowns/_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                             |
+| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Medium  |                | [solution](<markdowns/_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                             |
 | 3194 | Weekly Contest 403 - q1 - [Minimum Average of Smallest and Largest Elements](<https://leetcode.com/problems/minimum-average-of-smallest-and-largest-elements>)                           | Easy    | Contest        | [solution](<markdowns/_3194. Minimum Average of Smallest and Largest Elements.md>)                           | py                               |
-| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Easy    | Contest        | [solution](<markdowns/_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                               |
-| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Easy    | Contest        | [solution](<markdowns/_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                               |
+| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Medium  | Contest        | [solution](<markdowns/_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                               |
+| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Medium  | Contest        | [solution](<markdowns/_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                               |
 | 3210 | Weekly Contest 405 - q1 - [Find the Encrypted String](<https://leetcode.com/problems/find-the-encrypted-string>)                                                                         | Easy    | Contest        | [solution](<markdowns/_3210. Find the Encrypted String.md>)                                                  | py                               |
-| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)                               | Easy    | Contest        | [solution](<markdowns/_3211. Generate Binary Strings Without Adjacent Zeros.md>)                             | js, py                           |
-| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Easy    | Contest        | [solution](<markdowns/_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                               |
+| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)                               | Medium  | Contest        | [solution](<markdowns/_3211. Generate Binary Strings Without Adjacent Zeros.md>)                             | js, py                           |
+| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Medium  | Contest        | [solution](<markdowns/_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                               |
 | 3213 | Weekly Contest 405 - q4 - [Construct String with Minimum Cost](<https://leetcode.com/problems/construct-string-with-minimum-cost>)                                                       | Hard    | Contest        | [solution](<markdowns/_3213. Construct String with Minimum Cost.md>)                                         | py                               |
 | 3226 | Weekly Contest 407 - q1 - [Number of Bit Changes to Make Two Integers Equal](<https://leetcode.com/problems/number-of-bit-changes-to-make-two-integers-equal>)                           | Easy    | Contest        | [solution](<markdowns/_3226. Number of Bit Changes to Make Two Integers Equal.md>)                           | py                               |
-| 3227 | Weekly Contest 407 - q2 - [Vowels Game in a String](<https://leetcode.com/problems/vowels-game-in-a-string>)                                                                             | Easy    | Contest        | [solution](<markdowns/_3227. Vowels Game in a String.md>)                                                    | py                               |
-| 3228 | Weekly Contest 407 - q3 - [Maximum Number of Operations to Move Ones to the End](<https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end>)                   | Easy    | Contest        | [solution](<markdowns/_3228. Maximum Number of Operations to Move Ones to the End.md>)                       | py                               |
+| 3227 | Weekly Contest 407 - q2 - [Vowels Game in a String](<https://leetcode.com/problems/vowels-game-in-a-string>)                                                                             | Medium  | Contest        | [solution](<markdowns/_3227. Vowels Game in a String.md>)                                                    | py                               |
+| 3228 | Weekly Contest 407 - q3 - [Maximum Number of Operations to Move Ones to the End](<https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end>)                   | Medium  | Contest        | [solution](<markdowns/_3228. Maximum Number of Operations to Move Ones to the End.md>)                       | py                               |
 | 3229 | Weekly Contest 407 - q4 - [Minimum Operations to Make Array Equal to Target](<https://leetcode.com/problems/minimum-operations-to-make-array-equal-to-target>)                           | Hard    | Contest        | [solution](<markdowns/_3229. Minimum Operations to Make Array Equal to Target.md>)                           | py                               |
 
 <p align="right"><i>This README was generated using <a href="https://github.com/Zanger67/WikiLeet">WikiLeet</a></i></p>
diff --git a/markdowns/Daily_Questions.md b/markdowns/Daily_Questions.md
index eb494eca..3f3e5225 100644
--- a/markdowns/Daily_Questions.md
+++ b/markdowns/Daily_Questions.md
@@ -6,55 +6,55 @@ Dates are for the date I completed the question so due to the my time zone and h
 
 |    # | Title                                                                                                                                                                                    | Level   | Cats        | Solution                                                                                           | Languages                    | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:------------|:---------------------------------------------------------------------------------------------------|:-----------------------------|:----------------|
-| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Easy    | Daily       | [solution](<_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                           | Jul 20, 2024    |
+| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Medium  | Daily       | [solution](<_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                           | Jul 20, 2024    |
 | 1380 | [Lucky Numbers in a Matrix](<https://leetcode.com/problems/lucky-numbers-in-a-matrix>)                                                                                                   | Easy    | Daily       | [solution](<_1380. Lucky Numbers in a Matrix.md>)                                                  | js, py                       | Jul 19, 2024    |
-| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Easy    | Daily       | [solution](<_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                           | Jul 18, 2024    |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Easy    | Daily       | [solution](<_1110. Delete Nodes And Return Forest.md>)                                             | py                           | Jul 17, 2024    |
-| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Easy    | Daily       | [solution](<_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                           | Jul 16, 2024    |
-| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Easy    | Daily       | [solution](<_2196. Create Binary Tree From Descriptions.md>)                                       | py                           | Jul 15, 2024    |
+| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Medium  | Daily       | [solution](<_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                           | Jul 18, 2024    |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Medium  | Daily       | [solution](<_1110. Delete Nodes And Return Forest.md>)                                             | py                           | Jul 17, 2024    |
+| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Medium  | Daily       | [solution](<_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                           | Jul 16, 2024    |
+| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Medium  | Daily       | [solution](<_2196. Create Binary Tree From Descriptions.md>)                                       | py                           | Jul 15, 2024    |
 |  726 | [Number of Atoms](<https://leetcode.com/problems/number-of-atoms>)                                                                                                                       | Hard    | Daily       | [solution](<_726. Number of Atoms.md>)                                                             | py                           | Jul 14, 2024    |
 | 2751 | [Robot Collisions](<https://leetcode.com/problems/robot-collisions>)                                                                                                                     | Hard    | Daily       | [solution](<_2751. Robot Collisions.md>)                                                           | py                           | Jul 13, 2024    |
-| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Easy    | Daily       | [solution](<_1717. Maximum Score From Removing Substrings.md>)                                     | py                           | Jul 12, 2024    |
-| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Easy    | Daily       | [solution](<_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                           | Jul 11, 2024    |
+| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Medium  | Daily       | [solution](<_1717. Maximum Score From Removing Substrings.md>)                                     | py                           | Jul 12, 2024    |
+| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Medium  | Daily       | [solution](<_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                           | Jul 11, 2024    |
 | 1598 | [Crawler Log Folder](<https://leetcode.com/problems/crawler-log-folder>)                                                                                                                 | Easy    | Daily       | [solution](<_1598. Crawler Log Folder.md>)                                                         | c, js                        | Jul 10, 2024    |
-| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Easy    | Daily       | [solution](<_1701. Average Waiting Time.md>)                                                       | js, py                       | Jul 09, 2024    |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Easy    | Daily       | [solution](<_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py         | Jul 08, 2024    |
+| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Medium  | Daily       | [solution](<_1701. Average Waiting Time.md>)                                                       | js, py                       | Jul 09, 2024    |
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Medium  | Daily       | [solution](<_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py         | Jul 08, 2024    |
 | 1518 | [Water Bottles](<https://leetcode.com/problems/water-bottles>)                                                                                                                           | Easy    | Daily       | [solution](<_1518. Water Bottles.md>)                                                              | c, cpp, cs, java, js, py, ts | Jul 07, 2024    |
 | 2582 | [Pass the Pillow](<https://leetcode.com/problems/pass-the-pillow>)                                                                                                                       | Easy    | Daily       | [solution](<_2582. Pass the Pillow.md>)                                                            | c, cpp, cs, java, js, py     | Jul 06, 2024    |
-| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Easy    | Daily       | [solution](<_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                | Jul 05, 2024    |
-| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Easy    | Daily       | [solution](<_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py             | Jul 04, 2024    |
-| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Easy    | Daily       | [solution](<_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py             | Jul 03, 2024    |
+| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Medium  | Daily       | [solution](<_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                | Jul 05, 2024    |
+| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Medium  | Daily       | [solution](<_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py             | Jul 04, 2024    |
+| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Medium  | Daily       | [solution](<_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py             | Jul 03, 2024    |
 |  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                                           | Easy    | Daily       | [solution](<_350. Intersection of Two Arrays II.md>)                                               | java, py                     | Jul 02, 2024    |
 | 1550 | [Three Consecutive Odds](<https://leetcode.com/problems/three-consecutive-odds>)                                                                                                         | Easy    | Daily       | [solution](<_1550. Three Consecutive Odds.md>)                                                     | c, py                        | Jul 01, 2024    |
 | 1579 | [Remove Max Number of Edges to Keep Graph Fully Traversable](<https://leetcode.com/problems/remove-max-number-of-edges-to-keep-graph-fully-traversable>)                                 | Hard    | Daily       | [solution](<_1579. Remove Max Number of Edges to Keep Graph Fully Traversable.md>)                 | py                           | Jun 30, 2024    |
-| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Easy    | Daily       | [solution](<_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                     | Jun 29, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Easy    | Daily       | [solution](<_1382. Balance a Binary Search Tree.md>)                                               | py                           | Jun 29, 2024    |
-| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Easy    | Daily       | [solution](<_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py             | Jun 28, 2024    |
+| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Medium  | Daily       | [solution](<_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                     | Jun 29, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Medium  | Daily       | [solution](<_1382. Balance a Binary Search Tree.md>)                                               | py                           | Jun 29, 2024    |
+| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Medium  | Daily       | [solution](<_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py             | Jun 28, 2024    |
 | 1791 | [Find Center of Star Graph](<https://leetcode.com/problems/find-center-of-star-graph>)                                                                                                   | Easy    | Daily       | [solution](<_1791. Find Center of Star Graph.md>)                                                  | c, cpp, java, py             | Jun 27, 2024    |
-| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Easy    | Daily       | [solution](<_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                            | Jun 26, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily       | [solution](<_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                         | Jun 24, 2024    |
-| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Easy    | Daily       | [solution](<_1052. Grumpy Bookstore Owner.md>)                                                     | py                           | Jun 24, 2024    |
+| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Medium  | Daily       | [solution](<_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                            | Jun 26, 2024    |
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily       | [solution](<_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                         | Jun 24, 2024    |
+| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Medium  | Daily       | [solution](<_1052. Grumpy Bookstore Owner.md>)                                                     | py                           | Jun 24, 2024    |
 |  995 | [Minimum Number of K Consecutive Bit Flips](<https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips>)                                                                   | Hard    | Daily       | [solution](<_995. Minimum Number of K Consecutive Bit Flips.md>)                                   | c, py                        | Jun 24, 2024    |
-| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Easy    | Daily       | [solution](<_1248. Count Number of Nice Subarrays.md>)                                             | py                           | Jun 22, 2024    |
-| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Easy    | Daily       | [solution](<_1552. Magnetic Force Between Two Balls.md>)                                           | py                           | Jun 20, 2024    |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Easy    | Daily       | [solution](<_826. Most Profit Assigning Work.md>)                                                  | py                           | Jun 18, 2024    |
-|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Easy    | Daily       | [solution](<_663. Equal Tree Partition.md>)                                                        | py                           | Jun 17, 2024    |
+| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Medium  | Daily       | [solution](<_1248. Count Number of Nice Subarrays.md>)                                             | py                           | Jun 22, 2024    |
+| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Medium  | Daily       | [solution](<_1552. Magnetic Force Between Two Balls.md>)                                           | py                           | Jun 20, 2024    |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Medium  | Daily       | [solution](<_826. Most Profit Assigning Work.md>)                                                  | py                           | Jun 18, 2024    |
+|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Medium  | Daily       | [solution](<_663. Equal Tree Partition.md>)                                                        | py                           | Jun 17, 2024    |
 |  330 | [Patching Array](<https://leetcode.com/problems/patching-array>)                                                                                                                         | Hard    | Daily       | [solution](<_330. Patching Array.md>)                                                              | py                           | Jun 16, 2024    |
 |  502 | [IPO](<https://leetcode.com/problems/ipo>)                                                                                                                                               | Hard    | Daily       | [solution](<_502. IPO.md>)                                                                         | py                           | Jun 15, 2024    |
-|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Easy    | Daily       | [solution](<_945. Minimum Increment to Make Array Unique.md>)                                      | py                           | Jun 14, 2024    |
-|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Easy    | Daily       | [solution](<_75. Sort Colors.md>)                                                                  | c, py                        | Jun 12, 2024    |
+|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Medium  | Daily       | [solution](<_945. Minimum Increment to Make Array Unique.md>)                                      | py                           | Jun 14, 2024    |
+|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Medium  | Daily       | [solution](<_75. Sort Colors.md>)                                                                  | c, py                        | Jun 12, 2024    |
 | 1122 | [Relative Sort Array](<https://leetcode.com/problems/relative-sort-array>)                                                                                                               | Easy    | Daily       | [solution](<_1122. Relative Sort Array.md>)                                                        | java, py                     | Jun 11, 2024    |
 | 1051 | [Height Checker](<https://leetcode.com/problems/height-checker>)                                                                                                                         | Easy    | Daily       | [solution](<_1051. Height Checker.md>)                                                             | c, py                        | Jun 10, 2024    |
-|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Easy    | Daily       | [solution](<_974. Subarray Sums Divisible by K.md>)                                                | java, py                     | Jun 09, 2024    |
-|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Easy    | Daily       | [solution](<_523. Continuous Subarray Sum.md>)                                                     | py                           | Jun 08, 2024    |
-|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Easy    | Daily       | [solution](<_260. Single Number III.md>)                                                           | py                           | Jun 08, 2024    |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Easy    | Daily       | [solution](<_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                           | Jun 08, 2024    |
-| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Easy    | Daily       | [solution](<_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                           | Jun 08, 2024    |
+|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Medium  | Daily       | [solution](<_974. Subarray Sums Divisible by K.md>)                                                | java, py                     | Jun 09, 2024    |
+|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Medium  | Daily       | [solution](<_523. Continuous Subarray Sum.md>)                                                     | py                           | Jun 08, 2024    |
+|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Medium  | Daily       | [solution](<_260. Single Number III.md>)                                                           | py                           | Jun 08, 2024    |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Medium  | Daily       | [solution](<_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                           | Jun 08, 2024    |
+| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Medium  | Daily       | [solution](<_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                           | Jun 08, 2024    |
 | 1002 | [Find Common Characters](<https://leetcode.com/problems/find-common-characters>)                                                                                                         | Easy    | Daily       | [solution](<_1002. Find Common Characters.md>)                                                     | py                           | Jun 08, 2024    |
-|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Easy    | Daily       | [solution](<_648. Replace Words.md>)                                                               | java, py                     | Jun 07, 2024    |
-|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Easy    | Daily, N150 | [solution](<_846. Hand of Straights.md>)                                                           | py                           | Jun 06, 2024    |
+|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Medium  | Daily       | [solution](<_648. Replace Words.md>)                                                               | java, py                     | Jun 07, 2024    |
+|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Medium  | Daily, N150 | [solution](<_846. Hand of Straights.md>)                                                           | py                           | Jun 06, 2024    |
 |  409 | [Longest Palindrome](<https://leetcode.com/problems/longest-palindrome>)                                                                                                                 | Easy    | Daily       | [solution](<_409. Longest Palindrome.md>)                                                          | c, py                        | Jun 04, 2024    |
 | 2037 | [Minimum Number of Moves to Seat Everyone](<https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone>)                                                                     | Easy    | Daily       | [solution](<_2037. Minimum Number of Moves to Seat Everyone.md>)                                   | c, py                        | Jun 03, 2024    |
-| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Easy    | Daily       | [solution](<_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                  | Jun 03, 2024    |
+| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Medium  | Daily       | [solution](<_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                  | Jun 03, 2024    |
 |  344 | [Reverse String](<https://leetcode.com/problems/reverse-string>)                                                                                                                         | Easy    | Daily       | [solution](<_344. Reverse String.md>)                                                              | java, py                     | Jun 02, 2024    |
 | 3110 | [Score of a String](<https://leetcode.com/problems/score-of-a-string>)                                                                                                                   | Easy    | Daily       | [solution](<_3110. Score of a String.md>)                                                          | java, py                     | Jun 01, 2024    |
\ No newline at end of file
diff --git a/markdowns/Easy.md b/markdowns/Easy.md
index 2844c34e..435419aa 100644
--- a/markdowns/Easy.md
+++ b/markdowns/Easy.md
@@ -1,433 +1,142 @@
-# Easy Questions (425)
+# Easy Questions (134)
 
 *[Back to top](<../README.md>)*
 
 ------
 
-|    # | Title                                                                                                                                                                                    | Level   | Cats           | Solution                                                                                                     | Languages                        | Date Complete   |
-|-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:-------------------------------------------------------------------------------------------------------------|:---------------------------------|:----------------|
-|    1 | [Two Sum](<https://leetcode.com/problems/two-sum>)                                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_1. Two Sum.md>)                                                                       | java, py                         | May 22, 2024    |
-|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                                       | Easy    | N150           | [solution](<markdowns/_2. Add Two Numbers.md>)                                                               | java                             | May 22, 2024    |
-|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Easy    | B75, N150      | [solution](<markdowns/_3. Longest Substring Without Repeating Characters.md>)                                | java                             | May 22, 2024    |
-|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                                           | Easy    | B75, N150      | [solution](<markdowns/_5. Longest Palindromic Substring.md>)                                                 | py                               | Jul 05, 2024    |
-|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                                       | Easy    | N150           | [solution](<markdowns/_7. Reverse Integer.md>)                                                               | py                               | May 29, 2024    |
-|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                                       | Easy    |                | [solution](<markdowns/_8. String to Integer (atoi).md>)                                                      | py                               | Jun 10, 2024    |
-|    9 | [Palindrome Number](<https://leetcode.com/problems/palindrome-number>)                                                                                                                   | Easy    |                | [solution](<markdowns/_9. Palindrome Number.md>)                                                             | java                             | May 22, 2024    |
-|   14 | [Longest Common Prefix](<https://leetcode.com/problems/longest-common-prefix>)                                                                                                           | Easy    |                | [solution](<markdowns/_14. Longest Common Prefix.md>)                                                        | java                             | May 22, 2024    |
-|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                                           | Easy    | N150           | [solution](<markdowns/_17. Letter Combinations of a Phone Number.md>)                                        | java                             | Jul 14, 2024    |
-|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                                     | Easy    | B75, N150      | [solution](<markdowns/_19. Remove Nth Node From End of List.md>)                                             | c, java, py                      | Jun 07, 2024    |
-|   20 | [Valid Parentheses](<https://leetcode.com/problems/valid-parentheses>)                                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_20. Valid Parentheses.md>)                                                            | java                             | May 22, 2024    |
-|   21 | [Merge Two Sorted Lists](<https://leetcode.com/problems/merge-two-sorted-lists>)                                                                                                         | Easy    | B75, N150      | [solution](<markdowns/_21. Merge Two Sorted Lists.md>)                                                       | java                             | May 22, 2024    |
-|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                                             | Easy    | N150           | [solution](<markdowns/_22. Generate Parentheses.md>)                                                         | py                               | Jun 13, 2024    |
-|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                               | Easy    |                | [solution](<markdowns/_24. Swap Nodes in Pairs.md>)                                                          | c                                | Jun 07, 2024    |
-|   26 | [Remove Duplicates from Sorted Array](<https://leetcode.com/problems/remove-duplicates-from-sorted-array>)                                                                               | Easy    |                | [solution](<markdowns/_26. Remove Duplicates from Sorted Array.md>)                                          | java                             | May 22, 2024    |
-|   27 | [Remove Element](<https://leetcode.com/problems/remove-element>)                                                                                                                         | Easy    |                | [solution](<markdowns/_27. Remove Element.md>)                                                               | java, py                         | Jun 02, 2024    |
-|   28 | [Find the Index of the First Occurrence in a String](<https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string>)                                                 | Easy    |                | [solution](<markdowns/_28. Find the Index of the First Occurrence in a String.md>)                           | py                               | May 22, 2024    |
-|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Easy    | N150           | [solution](<markdowns/_36. Valid Sudoku.md>)                                                                 | py                               | Jun 13, 2024    |
-|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_39. Combination Sum.md>)                                                              | py                               | Jul 16, 2024    |
-|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Easy    | N150           | [solution](<markdowns/_46. Permutations.md>)                                                                 | py                               | Jun 07, 2024    |
-|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_48. Rotate Image.md>)                                                                 | c, py                            | Jun 15, 2024    |
-|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Easy    | B75, N150      | [solution](<markdowns/_49. Group Anagrams.md>)                                                               | py                               | Jun 13, 2024    |
-|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                                      | Easy    | N150           | [solution](<markdowns/_50. Pow(x, n).md>)                                                                    | c, java, py                      | Jun 23, 2024    |
-|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_56. Merge Intervals.md>)                                                              | py                               | Jun 19, 2024    |
-|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_57. Insert Interval.md>)                                                              | py                               | Jun 19, 2024    |
-|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                               | Easy    |                | [solution](<markdowns/_61. Rotate List.md>)                                                                  | py                               | Jun 22, 2024    |
-|   66 | [Plus One](<https://leetcode.com/problems/plus-one>)                                                                                                                                     | Easy    | N150           | [solution](<markdowns/_66. Plus One.md>)                                                                     | c                                | Jun 03, 2024    |
-|   69 | [Sqrt(x)](<https://leetcode.com/problems/sqrtx>)                                                                                                                                         | Easy    |                | [solution](<markdowns/_69. Sqrt(x).md>)                                                                      | py                               | Jun 07, 2024    |
-|   70 | [Climbing Stairs](<https://leetcode.com/problems/climbing-stairs>)                                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_70. Climbing Stairs.md>)                                                              | py                               | May 22, 2024    |
-|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                                           | Easy    |                | [solution](<markdowns/_71. Simplify Path.md>)                                                                | py                               | Jun 11, 2024    |
-|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Easy    | N150           | [solution](<markdowns/_74. Search a 2D Matrix.md>)                                                           | py                               | Jun 15, 2024    |
-|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Easy    | Daily          | [solution](<markdowns/_75. Sort Colors.md>)                                                                  | c, py                            | Jun 12, 2024    |
-|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                                             | Easy    |                | [solution](<markdowns/_77. Combinations.md>)                                                                 | py                               | Jun 07, 2024    |
-|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Easy    | N150           | [solution](<markdowns/_78. Subsets.md>)                                                                      | py                               | Jun 02, 2024    |
-|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Easy    | B75, N150      | [solution](<markdowns/_79. Word Search.md>)                                                                  | py                               | Jun 27, 2024    |
-|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                                           | Easy    |                | [solution](<markdowns/_82. Remove Duplicates from Sorted List II.md>)                                        | py                               | Jul 04, 2024    |
-|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Easy    | N150           | [solution](<markdowns/_90. Subsets II.md>)                                                                   | py                               | Jul 03, 2024    |
-|   94 | [Binary Tree Inorder Traversal](<https://leetcode.com/problems/binary-tree-inorder-traversal>)                                                                                           | Easy    |                | [solution](<markdowns/_94. Binary Tree Inorder Traversal.md>)                                                | java, py                         | Jun 29, 2024    |
-|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                                                               | Easy    | B75, N150      | [solution](<markdowns/_98. Validate Binary Search Tree.md>)                                                  | c                                | Jun 23, 2024    |
-|  100 | [Same Tree](<https://leetcode.com/problems/same-tree>)                                                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_100. Same Tree.md>)                                                                   | py                               | Jul 03, 2024    |
-|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_102. Binary Tree Level Order Traversal.md>)                                           | java                             | Jul 04, 2024    |
-|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                                                     | Easy    |                | [solution](<markdowns/_103. Binary Tree Zigzag Level Order Traversal.md>)                                    | py                               | Jul 03, 2024    |
-|  104 | [Maximum Depth of Binary Tree](<https://leetcode.com/problems/maximum-depth-of-binary-tree>)                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_104. Maximum Depth of Binary Tree.md>)                                                | py                               | Jul 04, 2024    |
-|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                                             | Easy    |                | [solution](<markdowns/_107. Binary Tree Level Order Traversal II.md>)                                        | java                             | Jul 04, 2024    |
-|  110 | [Balanced Binary Tree](<https://leetcode.com/problems/balanced-binary-tree>)                                                                                                             | Easy    | N150           | [solution](<markdowns/_110. Balanced Binary Tree.md>)                                                        | py                               | Jul 04, 2024    |
-|  111 | [Minimum Depth of Binary Tree](<https://leetcode.com/problems/minimum-depth-of-binary-tree>)                                                                                             | Easy    |                | [solution](<markdowns/_111. Minimum Depth of Binary Tree.md>)                                                | c, java                          | Jun 07, 2024    |
-|  112 | [Path Sum](<https://leetcode.com/problems/path-sum>)                                                                                                                                     | Easy    |                | [solution](<markdowns/_112. Path Sum.md>)                                                                    | py                               | Jul 03, 2024    |
-|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                                               | Easy    |                | [solution](<markdowns/_113. Path Sum II.md>)                                                                 | py                               | Jul 03, 2024    |
-|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                                 | Easy    |                | [solution](<markdowns/_114. Flatten Binary Tree to Linked List.md>)                                          | c, py                            | Jun 11, 2024    |
-|  118 | [Pascal's Triangle](<https://leetcode.com/problems/pascals-triangle>)                                                                                                                    | Easy    |                | [solution](<markdowns/_118. Pascal's Triangle.md>)                                                           | py                               | May 22, 2024    |
-|  121 | [Best Time to Buy and Sell Stock](<https://leetcode.com/problems/best-time-to-buy-and-sell-stock>)                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_121. Best Time to Buy and Sell Stock.md>)                                             | py                               | Jul 03, 2024    |
-|  125 | [Valid Palindrome](<https://leetcode.com/problems/valid-palindrome>)                                                                                                                     | Easy    | B75, N150      | [solution](<markdowns/_125. Valid Palindrome.md>)                                                            | c, py                            | Jun 07, 2024    |
-|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_128. Longest Consecutive Sequence.md>)                                                | java, py                         | Jun 13, 2024    |
-|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                                                     | Easy    |                | [solution](<markdowns/_129. Sum Root to Leaf Numbers.md>)                                                    | py                               | Jun 07, 2024    |
-|  136 | [Single Number](<https://leetcode.com/problems/single-number>)                                                                                                                           | Easy    | N150           | [solution](<markdowns/_136. Single Number.md>)                                                               | py                               | Jul 03, 2024    |
-|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                                           | Easy    | N150           | [solution](<markdowns/_138. Copy List with Random Pointer.md>)                                               | py                               | Jun 27, 2024    |
-|  141 | [Linked List Cycle](<https://leetcode.com/problems/linked-list-cycle>)                                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_141. Linked List Cycle.md>)                                                           | c, py                            | Jun 04, 2024    |
-|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                             | Easy    |                | [solution](<markdowns/_142. Linked List Cycle II.md>)                                                        | py                               | Jun 26, 2024    |
-|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_143. Reorder List.md>)                                                                | java, py                         | Jun 11, 2024    |
-|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Easy    | N150           | [solution](<markdowns/_150. Evaluate Reverse Polish Notation.md>)                                            | py                               | Jun 11, 2024    |
-|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                                                                   | Easy    | N150           | [solution](<markdowns/_155. Min Stack.md>)                                                                   | py                               | Jun 16, 2024    |
-|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                                       | Easy    |                | [solution](<markdowns/_165. Compare Version Numbers.md>)                                                     | c, py                            | Jul 02, 2024    |
-|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                                           | Easy    |                | [solution](<markdowns/_166. Fraction to Recurring Decimal.md>)                                               | py                               | May 31, 2024    |
-|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Easy    | N150           | [solution](<markdowns/_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                               | Jun 14, 2024    |
-|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                                                               | Easy    |                | [solution](<markdowns/_173. Binary Search Tree Iterator.md>)                                                 | py                               | Jun 26, 2024    |
-|  175 | [Combine Two Tables](<https://leetcode.com/problems/combine-two-tables>)                                                                                                                 | Easy    |                | [solution](<markdowns/_175. Combine Two Tables.md>)                                                          | py, sql                          | May 22, 2024    |
-|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                                                                           | Easy    |                | [solution](<markdowns/_176. Second Highest Salary.md>)                                                       | sql                              | May 22, 2024    |
-|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                                                                                 | Easy    |                | [solution](<markdowns/_177. Nth Highest Salary.md>)                                                          | sql                              | May 22, 2024    |
-|  181 | [Employees Earning More Than Their Managers](<https://leetcode.com/problems/employees-earning-more-than-their-managers>)                                                                 | Easy    |                | [solution](<markdowns/_181. Employees Earning More Than Their Managers.md>)                                  | sql                              | May 22, 2024    |
-|  182 | [Duplicate Emails](<https://leetcode.com/problems/duplicate-emails>)                                                                                                                     | Easy    |                | [solution](<markdowns/_182. Duplicate Emails.md>)                                                            | sql                              | May 22, 2024    |
-|  183 | [Customers Who Never Order](<https://leetcode.com/problems/customers-who-never-order>)                                                                                                   | Easy    |                | [solution](<markdowns/_183. Customers Who Never Order.md>)                                                   | sql                              | May 22, 2024    |
-|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                                                                                   | Easy    |                | [solution](<markdowns/_184. Department Highest Salary.md>)                                                   | sql                              | Jun 07, 2024    |
-|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Easy    |                | [solution](<markdowns/_189. Rotate Array.md>)                                                                | py                               | Jun 02, 2024    |
-|  191 | [Number of 1 Bits](<https://leetcode.com/problems/number-of-1-bits>)                                                                                                                     | Easy    | B75, N150      | [solution](<markdowns/_191. Number of 1 Bits.md>)                                                            | py                               | Jul 03, 2024    |
-|  196 | [Delete Duplicate Emails](<https://leetcode.com/problems/delete-duplicate-emails>)                                                                                                       | Easy    |                | [solution](<markdowns/_196. Delete Duplicate Emails.md>)                                                     | py, sql                          | Jun 07, 2024    |
-|  197 | [Rising Temperature](<https://leetcode.com/problems/rising-temperature>)                                                                                                                 | Easy    |                | [solution](<markdowns/_197. Rising Temperature.md>)                                                          | sql                              | May 22, 2024    |
-|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_198. House Robber.md>)                                                                | py                               | Jul 17, 2024    |
-|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                                               | Easy    | N150           | [solution](<markdowns/_199. Binary Tree Right Side View.md>)                                                 | cpp, java                        | Jul 04, 2024    |
-|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_200. Number of Islands.md>)                                                           | py                               | Jun 17, 2024    |
-|  206 | [Reverse Linked List](<https://leetcode.com/problems/reverse-linked-list>)                                                                                                               | Easy    | B75, N150      | [solution](<markdowns/_206. Reverse Linked List.md>)                                                         | java                             | Jun 27, 2024    |
-|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                                               | Easy    | B75, N150      | [solution](<markdowns/_208. Implement Trie (Prefix Tree).md>)                                                | py                               | Jun 27, 2024    |
-|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                                 | Easy    | B75, N150      | [solution](<markdowns/_211. Design Add and Search Words Data Structure.md>)                                  | py                               | Jun 27, 2024    |
-|  217 | [Contains Duplicate](<https://leetcode.com/problems/contains-duplicate>)                                                                                                                 | Easy    | B75, N150      | [solution](<markdowns/_217. Contains Duplicate.md>)                                                          | py                               | Jun 12, 2024    |
-|  226 | [Invert Binary Tree](<https://leetcode.com/problems/invert-binary-tree>)                                                                                                                 | Easy    | B75, N150      | [solution](<markdowns/_226. Invert Binary Tree.md>)                                                          | py                               | Jul 03, 2024    |
-|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                                               | Easy    |                | [solution](<markdowns/_227. Basic Calculator II.md>)                                                         | py                               | Jun 10, 2024    |
-|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                                                           | Easy    | B75, N150      | [solution](<markdowns/_230. Kth Smallest Element in a BST.md>)                                               | py                               | Jun 29, 2024    |
-|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                                                         | Easy    | B75, N150      | [solution](<markdowns/_235. Lowest Common Ancestor of a Binary Search Tree.md>)                              | py                               | Jul 04, 2024    |
-|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                                                       | Easy    | B75            | [solution](<markdowns/_236. Lowest Common Ancestor of a Binary Tree.md>)                                     | py                               | Jul 15, 2024    |
-|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Easy    | B75, N150      | [solution](<markdowns/_238. Product of Array Except Self.md>)                                                | py                               | Jun 13, 2024    |
-|  242 | [Valid Anagram](<https://leetcode.com/problems/valid-anagram>)                                                                                                                           | Easy    | B75, N150      | [solution](<markdowns/_242. Valid Anagram.md>)                                                               | c, py                            | Jun 13, 2024    |
-|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Easy    |                | [solution](<markdowns/_251. Flatten 2D Vector.md>)                                                           | py                               | May 22, 2024    |
-|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Easy    | Daily          | [solution](<markdowns/_260. Single Number III.md>)                                                           | py                               | Jun 08, 2024    |
-|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Easy    | B75, N150      | [solution](<markdowns/_271. Encode and Decode Strings.md>)                                                   | py                               | Jun 13, 2024    |
-|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Easy    | N150           | [solution](<markdowns/_286. Walls and Gates.md>)                                                             | py                               | Jun 15, 2024    |
-|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Easy    | N150           | [solution](<markdowns/_287. Find the Duplicate Number.md>)                                                   | c                                | Jun 26, 2024    |
-|  292 | [Nim Game](<https://leetcode.com/problems/nim-game>)                                                                                                                                     | Easy    |                | [solution](<markdowns/_292. Nim Game.md>)                                                                    | py                               | May 23, 2024    |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                             | Easy    |                | [solution](<markdowns/_314. Binary Tree Vertical Order Traversal.md>)                                        | py                               | Jun 12, 2024    |
-|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                             | Easy    |                | [solution](<markdowns/_328. Odd Even Linked List.md>)                                                        | py                               | Jun 22, 2024    |
-|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                                         | Easy    |                | [solution](<markdowns/_339. Nested List Weight Sum.md>)                                                      | c, py                            | Jul 02, 2024    |
-|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Easy    |                | [solution](<markdowns/_341. Flatten Nested List Iterator.md>)                                                | java                             | Jul 02, 2024    |
-|  344 | [Reverse String](<https://leetcode.com/problems/reverse-string>)                                                                                                                         | Easy    | Daily          | [solution](<markdowns/_344. Reverse String.md>)                                                              | java, py                         | Jun 02, 2024    |
-|  345 | [Reverse Vowels of a String](<https://leetcode.com/problems/reverse-vowels-of-a-string>)                                                                                                 | Easy    |                | [solution](<markdowns/_345. Reverse Vowels of a String.md>)                                                  | py                               | May 23, 2024    |
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_347. Top K Frequent Elements.md>)                                                     | py                               | Jun 13, 2024    |
-|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Easy    |                | [solution](<markdowns/_348. Design Tic-Tac-Toe.md>)                                                          | py                               | Jul 05, 2024    |
-|  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                                           | Easy    | Daily          | [solution](<markdowns/_350. Intersection of Two Arrays II.md>)                                               | java, py                         | Jul 02, 2024    |
-|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Easy    |                | [solution](<markdowns/_353. Design Snake Game.md>)                                                           | py                               | Jun 28, 2024    |
-|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                                                   | Easy    |                | [solution](<markdowns/_364. Nested List Weight Sum II.md>)                                                   | java, py                         | Jul 02, 2024    |
-|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                                                 | Easy    |                | [solution](<markdowns/_366. Find Leaves of Binary Tree.md>)                                                  | py                               | Jun 12, 2024    |
-|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                             | Easy    |                | [solution](<markdowns/_369. Plus One Linked List.md>)                                                        | c                                | Jul 04, 2024    |
-|  374 | [Guess Number Higher or Lower](<https://leetcode.com/problems/guess-number-higher-or-lower>)                                                                                             | Easy    |                | [solution](<markdowns/_374. Guess Number Higher or Lower.md>)                                                | java, py                         | Jun 02, 2024    |
-|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Easy    |                | [solution](<markdowns/_380. Insert Delete GetRandom O(1).md>)                                                | java                             | Jul 06, 2024    |
-|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                                       | Easy    |                | [solution](<markdowns/_382. Linked List Random Node.md>)                                                     | c, java, py                      | Jun 22, 2024    |
-|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Easy    |                | [solution](<markdowns/_384. Shuffle an Array.md>)                                                            | py                               | Jun 29, 2024    |
-|  392 | [Is Subsequence](<https://leetcode.com/problems/is-subsequence>)                                                                                                                         | Easy    |                | [solution](<markdowns/_392. Is Subsequence.md>)                                                              | java                             | Jun 22, 2024    |
-|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                                           | Easy    |                | [solution](<markdowns/_394. Decode String.md>)                                                               | py                               | Jun 15, 2024    |
-|  408 | [Valid Word Abbreviation](<https://leetcode.com/problems/valid-word-abbreviation>)                                                                                                       | Easy    |                | [solution](<markdowns/_408. Valid Word Abbreviation.md>)                                                     | py                               | Jun 02, 2024    |
-|  409 | [Longest Palindrome](<https://leetcode.com/problems/longest-palindrome>)                                                                                                                 | Easy    | Daily          | [solution](<markdowns/_409. Longest Palindrome.md>)                                                          | c, py                            | Jun 04, 2024    |
-|  412 | [Fizz Buzz](<https://leetcode.com/problems/fizz-buzz>)                                                                                                                                   | Easy    |                | [solution](<markdowns/_412. Fizz Buzz.md>)                                                                   | java, py                         | Jun 02, 2024    |
-|  414 | [Third Maximum Number](<https://leetcode.com/problems/third-maximum-number>)                                                                                                             | Easy    |                | [solution](<markdowns/_414. Third Maximum Number.md>)                                                        | py                               | May 23, 2024    |
-|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Easy    |                | [solution](<markdowns/_419. Battleships in a Board.md>)                                                      | c, py                            | Jun 24, 2024    |
-|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Easy    | B75, N150      | [solution](<markdowns/_424. Longest Repeating Character Replacement.md>)                                     | py                               | Jul 06, 2024    |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                                       | Easy    |                | [solution](<markdowns/_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)                     | py                               | Jun 12, 2024    |
-|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                                                     | Easy    |                | [solution](<markdowns/_429. N-ary Tree Level Order Traversal.md>)                                            | py                               | Jul 04, 2024    |
-|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                                       | Easy    |                | [solution](<markdowns/_430. Flatten a Multilevel Doubly Linked List.md>)                                     | cpp, java                        | Jun 27, 2024    |
-|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                                                             | Easy    |                | [solution](<markdowns/_437. Path Sum III.md>)                                                                | py                               | Jul 03, 2024    |
-|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                                                             | Easy    |                | [solution](<markdowns/_450. Delete Node in a BST.md>)                                                        | py                               | Jun 29, 2024    |
-|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Easy    |                | [solution](<markdowns/_451. Sort Characters By Frequency.md>)                                                | py                               | Jun 18, 2024    |
-|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Easy    |                | [solution](<markdowns/_475. Heaters.md>)                                                                     | py                               | Jun 07, 2024    |
-|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Easy    |                | [solution](<markdowns/_503. Next Greater Element II.md>)                                                     | py                               | Jul 05, 2024    |
-|  509 | [Fibonacci Number](<https://leetcode.com/problems/fibonacci-number>)                                                                                                                     | Easy    |                | [solution](<markdowns/_509. Fibonacci Number.md>)                                                            | c                                | Jun 17, 2024    |
-|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                                               | Easy    |                | [solution](<markdowns/_513. Find Bottom Left Tree Value.md>)                                                 | java                             | Jul 03, 2024    |
-|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Easy    | Daily          | [solution](<markdowns/_523. Continuous Subarray Sum.md>)                                                     | py                               | Jun 08, 2024    |
-|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                                   | Easy    |                | [solution](<markdowns/_535. Encode and Decode TinyURL.md>)                                                   | py                               | Jun 07, 2024    |
-|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Easy    |                | [solution](<markdowns/_540. Single Element in a Sorted Array.md>)                                            | py                               | Jul 05, 2024    |
-|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Easy    |                | [solution](<markdowns/_542. 01 Matrix.md>)                                                                   | py                               | Jun 26, 2024    |
-|  543 | [Diameter of Binary Tree](<https://leetcode.com/problems/diameter-of-binary-tree>)                                                                                                       | Easy    | N150           | [solution](<markdowns/_543. Diameter of Binary Tree.md>)                                                     | c, java, py                      | Jun 03, 2024    |
-|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Easy    |                | [solution](<markdowns/_565. Array Nesting.md>)                                                               | py                               | Jul 02, 2024    |
-|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Easy    | N150           | [solution](<markdowns/_567. Permutation in String.md>)                                                       | py                               | Jul 06, 2024    |
-|  572 | [Subtree of Another Tree](<https://leetcode.com/problems/subtree-of-another-tree>)                                                                                                       | Easy    | B75, N150      | [solution](<markdowns/_572. Subtree of Another Tree.md>)                                                     | py                               | Jun 03, 2024    |
-|  577 | [Employee Bonus](<https://leetcode.com/problems/employee-bonus>)                                                                                                                         | Easy    |                | [solution](<markdowns/_577. Employee Bonus.md>)                                                              | sql                              | May 22, 2024    |
-|  584 | [Find Customer Referee](<https://leetcode.com/problems/find-customer-referee>)                                                                                                           | Easy    |                | [solution](<markdowns/_584. Find Customer Referee.md>)                                                       | sql                              | May 22, 2024    |
-|  586 | [Customer Placing the Largest Number of Orders](<https://leetcode.com/problems/customer-placing-the-largest-number-of-orders>)                                                           | Easy    |                | [solution](<markdowns/_586. Customer Placing the Largest Number of Orders.md>)                               | sql                              | May 22, 2024    |
-|  595 | [Big Countries](<https://leetcode.com/problems/big-countries>)                                                                                                                           | Easy    |                | [solution](<markdowns/_595. Big Countries.md>)                                                               | sql                              | May 22, 2024    |
-|  596 | [Classes More Than 5 Students](<https://leetcode.com/problems/classes-more-than-5-students>)                                                                                             | Easy    |                | [solution](<markdowns/_596. Classes More Than 5 Students.md>)                                                | sql                              | May 22, 2024    |
-|  607 | [Sales Person](<https://leetcode.com/problems/sales-person>)                                                                                                                             | Easy    |                | [solution](<markdowns/_607. Sales Person.md>)                                                                | sql                              | May 22, 2024    |
-|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Easy    |                | [solution](<markdowns/_611. Valid Triangle Number.md>)                                                       | py                               | May 22, 2024    |
-|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Easy    |                | [solution](<markdowns/_616. Add Bold Tag in String.md>)                                                      | py                               | Jun 28, 2024    |
-|  619 | [Biggest Single Number](<https://leetcode.com/problems/biggest-single-number>)                                                                                                           | Easy    |                | [solution](<markdowns/_619. Biggest Single Number.md>)                                                       | sql                              | May 22, 2024    |
-|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Easy    |                | [solution](<markdowns/_622. Design Circular Queue.md>)                                                       | py                               | Jul 06, 2024    |
-|  637 | [Average of Levels in Binary Tree](<https://leetcode.com/problems/average-of-levels-in-binary-tree>)                                                                                     | Easy    |                | [solution](<markdowns/_637. Average of Levels in Binary Tree.md>)                                            | py                               | Jul 04, 2024    |
-|  645 | [Set Mismatch](<https://leetcode.com/problems/set-mismatch>)                                                                                                                             | Easy    |                | [solution](<markdowns/_645. Set Mismatch.md>)                                                                | java, py                         | Jun 01, 2024    |
-|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                                         | Easy    | B75, N150      | [solution](<markdowns/_647. Palindromic Substrings.md>)                                                      | py                               | Jul 05, 2024    |
-|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Easy    | Daily          | [solution](<markdowns/_648. Replace Words.md>)                                                               | java, py                         | Jun 07, 2024    |
-|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                                       | Easy    |                | [solution](<markdowns/_651. 4 Keys Keyboard.md>)                                                             | py                               | May 29, 2024    |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Easy    |                | [solution](<markdowns/_654. Maximum Binary Tree.md>)                                                         | py                               | Jun 12, 2024    |
-|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Easy    | Daily          | [solution](<markdowns/_663. Equal Tree Partition.md>)                                                        | py                               | Jun 17, 2024    |
-|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Easy    |                | [solution](<markdowns/_665. Non-decreasing Array.md>)                                                        | java, py                         | Jun 14, 2024    |
-|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Easy    |                | [solution](<markdowns/_666. Path Sum IV.md>)                                                                 | py                               | Jul 03, 2024    |
-|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                                 | Easy    |                | [solution](<markdowns/_676. Implement Magic Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
-|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                                                           | Easy    |                | [solution](<markdowns/_687. Longest Univalue Path.md>)                                                       | py                               | Jul 03, 2024    |
-|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Easy    |                | [solution](<markdowns/_690. Employee Importance.md>)                                                         | java                             | Jul 02, 2024    |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Easy    |                | [solution](<markdowns/_692. Top K Frequent Words.md>)                                                        | py                               | Jun 09, 2024    |
-|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Easy    | N150           | [solution](<markdowns/_695. Max Area of Island.md>)                                                          | c                                | Jun 24, 2024    |
-|  700 | [Search in a Binary Search Tree](<https://leetcode.com/problems/search-in-a-binary-search-tree>)                                                                                         | Easy    |                | [solution](<markdowns/_700. Search in a Binary Search Tree.md>)                                              | c, java, py                      | Jul 17, 2024    |
-|  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                                                                       | Easy    | N150           | [solution](<markdowns/_703. Kth Largest Element in a Stream.md>)                                             | py                               | Jul 05, 2024    |
-|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                                 | Easy    |                | [solution](<markdowns/_707. Design Linked List.md>)                                                          | java                             | Jun 22, 2024    |
-|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                                   | Easy    |                | [solution](<markdowns/_708. Insert into a Sorted Circular Linked List.md>)                                   | py                               | Jun 22, 2024    |
-|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Easy    |                | [solution](<markdowns/_713. Subarray Product Less Than K.md>)                                                | py                               | Jul 01, 2024    |
-|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Easy    |                | [solution](<markdowns/_720. Longest Word in Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
-|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                                 | Easy    |                | [solution](<markdowns/_725. Split Linked List in Parts.md>)                                                  | py                               | Jun 22, 2024    |
-|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Easy    |                | [solution](<markdowns/_735. Asteroid Collision.md>)                                                          | py                               | Jul 14, 2024    |
-|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Easy    | N150           | [solution](<markdowns/_739. Daily Temperatures.md>)                                                          | c, java, py                      | Jun 13, 2024    |
-|  744 | [Find Smallest Letter Greater Than Target](<https://leetcode.com/problems/find-smallest-letter-greater-than-target>)                                                                     | Easy    |                | [solution](<markdowns/_744. Find Smallest Letter Greater Than Target.md>)                                    | java, py                         | Jun 01, 2024    |
-|  746 | [Min Cost Climbing Stairs](<https://leetcode.com/problems/min-cost-climbing-stairs>)                                                                                                     | Easy    | N150           | [solution](<markdowns/_746. Min Cost Climbing Stairs.md>)                                                    | py                               | Jul 05, 2024    |
-|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Easy    |                | [solution](<markdowns/_758. Bold Words in String.md>)                                                        | py                               | Jun 28, 2024    |
-|  771 | [Jewels and Stones](<https://leetcode.com/problems/jewels-and-stones>)                                                                                                                   | Easy    |                | [solution](<markdowns/_771. Jewels and Stones.md>)                                                           | java, py                         | Jun 02, 2024    |
-|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                                                   | Easy    | Weekly Premium | [solution](<markdowns/_776. Split BST.md>)                                                                   | py                               | Jun 29, 2024    |
-|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                                       | Easy    |                | [solution](<markdowns/_784. Letter Case Permutation.md>)                                                     | py                               | Jun 15, 2024    |
-|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                                 | Easy    |                | [solution](<markdowns/_791. Custom Sort String.md>)                                                          | java                             | Jun 24, 2024    |
-|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Easy    |                | [solution](<markdowns/_794. Valid Tic-Tac-Toe State.md>)                                                     | py                               | Jul 05, 2024    |
-|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Easy    |                | [solution](<markdowns/_807. Max Increase to Keep City Skyline.md>)                                           | java                             | Jun 22, 2024    |
-|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Easy    |                | [solution](<markdowns/_817. Linked List Components.md>)                                                      | java                             | Jul 04, 2024    |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Easy    | Daily          | [solution](<markdowns/_826. Most Profit Assigning Work.md>)                                                  | py                               | Jun 18, 2024    |
-|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Easy    | Daily, N150    | [solution](<markdowns/_846. Hand of Straights.md>)                                                           | py                               | Jun 06, 2024    |
-|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Easy    |                | [solution](<markdowns/_848. Shifting Letters.md>)                                                            | py                               | Jun 29, 2024    |
-|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Easy    |                | [solution](<markdowns/_849. Maximize Distance to Closest Person.md>)                                         | py                               | Jun 29, 2024    |
-|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Easy    | N150           | [solution](<markdowns/_853. Car Fleet.md>)                                                                   | py                               | Jun 14, 2024    |
-|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                                             | Easy    |                | [solution](<markdowns/_856. Score of Parentheses.md>)                                                        | py                               | Jun 19, 2024    |
-|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Easy    |                | [solution](<markdowns/_861. Score After Flipping Matrix.md>)                                                 | c, py                            | Jun 10, 2024    |
-|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                                               | Easy    |                | [solution](<markdowns/_863. All Nodes Distance K in Binary Tree.md>)                                         | py                               | Jun 26, 2024    |
-|  867 | [Transpose Matrix](<https://leetcode.com/problems/transpose-matrix>)                                                                                                                     | Easy    |                | [solution](<markdowns/_867. Transpose Matrix.md>)                                                            | py                               | Jun 15, 2024    |
-|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Easy    |                | [solution](<markdowns/_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py         | Jul 11, 2024    |
-|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Easy    |                | [solution](<markdowns/_890. Find and Replace Pattern.md>)                                                    | py                               | Jul 03, 2024    |
-|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Easy    |                | [solution](<markdowns/_909. Snakes and Ladders.md>)                                                          | py                               | Jun 12, 2024    |
-|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                                           | Easy    |                | [solution](<markdowns/_919. Complete Binary Tree Inserter.md>)                                               | py                               | Jul 05, 2024    |
-|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                                           | Easy    |                | [solution](<markdowns/_921. Minimum Add to Make Parentheses Valid.md>)                                       | java, py                         | Jun 12, 2024    |
-|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Easy    |                | [solution](<markdowns/_930. Binary Subarrays With Sum.md>)                                                   | py                               | Jun 22, 2024    |
-|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Easy    | Daily          | [solution](<markdowns/_945. Minimum Increment to Make Array Unique.md>)                                      | py                               | Jun 14, 2024    |
-|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Easy    |                | [solution](<markdowns/_946. Validate Stack Sequences.md>)                                                    | c, py                            | Jun 12, 2024    |
-|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Easy    |                | [solution](<markdowns/_950. Reveal Cards In Increasing Order.md>)                                            | py                               | Jun 12, 2024    |
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Easy    | N150           | [solution](<markdowns/_973. K Closest Points to Origin.md>)                                                  | py                               | Jun 29, 2024    |
-|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Easy    | Daily          | [solution](<markdowns/_974. Subarray Sums Divisible by K.md>)                                                | java, py                         | Jun 09, 2024    |
-|  977 | [Squares of a Sorted Array](<https://leetcode.com/problems/squares-of-a-sorted-array>)                                                                                                   | Easy    |                | [solution](<markdowns/_977. Squares of a Sorted Array.md>)                                                   | py                               | Jun 21, 2024    |
-|  993 | [Cousins in Binary Tree](<https://leetcode.com/problems/cousins-in-binary-tree>)                                                                                                         | Easy    |                | [solution](<markdowns/_993. Cousins in Binary Tree.md>)                                                      | py                               | Jul 04, 2024    |
-|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Easy    | N150           | [solution](<markdowns/_994. Rotting Oranges.md>)                                                             | py                               | Jun 15, 2024    |
-| 1002 | [Find Common Characters](<https://leetcode.com/problems/find-common-characters>)                                                                                                         | Easy    | Daily          | [solution](<markdowns/_1002. Find Common Characters.md>)                                                     | py                               | Jun 08, 2024    |
-| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                                                     | Easy    |                | [solution](<markdowns/_1006. Clumsy Factorial.md>)                                                           | c, py                            | Jun 12, 2024    |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Easy    |                | [solution](<markdowns/_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java                     | Jun 27, 2024    |
-| 1018 | [Binary Prefix Divisible By 5](<https://leetcode.com/problems/binary-prefix-divisible-by-5>)                                                                                             | Easy    |                | [solution](<markdowns/_1018. Binary Prefix Divisible By 5.md>)                                               | py                               | Jul 04, 2024    |
-| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Easy    |                | [solution](<markdowns/_1019. Next Greater Node In Linked List.md>)                                           | py                               | Jun 22, 2024    |
-| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Easy    |                | [solution](<markdowns/_1020. Number of Enclaves.md>)                                                         | py                               | Jun 26, 2024    |
-| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                                                             | Easy    |                | [solution](<markdowns/_1026. Maximum Difference Between Node and Ancestor.md>)                               | py                               | Jun 23, 2024    |
-| 1030 | [Matrix Cells in Distance Order](<https://leetcode.com/problems/matrix-cells-in-distance-order>)                                                                                         | Easy    |                | [solution](<markdowns/_1030. Matrix Cells in Distance Order.md>)                                             | py                               | Jun 04, 2024    |
-| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Easy    | Daily          | [solution](<markdowns/_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                                | Jun 26, 2024    |
-| 1046 | [Last Stone Weight](<https://leetcode.com/problems/last-stone-weight>)                                                                                                                   | Easy    | N150           | [solution](<markdowns/_1046. Last Stone Weight.md>)                                                          | py                               | Jun 04, 2024    |
-| 1051 | [Height Checker](<https://leetcode.com/problems/height-checker>)                                                                                                                         | Easy    | Daily          | [solution](<markdowns/_1051. Height Checker.md>)                                                             | c, py                            | Jun 10, 2024    |
-| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Easy    | Daily          | [solution](<markdowns/_1052. Grumpy Bookstore Owner.md>)                                                     | py                               | Jun 24, 2024    |
-| 1068 | [Product Sales Analysis I](<https://leetcode.com/problems/product-sales-analysis-i>)                                                                                                     | Easy    |                | [solution](<markdowns/_1068. Product Sales Analysis I.md>)                                                   | sql                              | May 22, 2024    |
-| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                                       | Easy    |                | [solution](<markdowns/_1087. Brace Expansion.md>)                                                            | py                               | Jun 15, 2024    |
-| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Easy    | Weekly Premium | [solution](<markdowns/_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                               | Jul 04, 2024    |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Easy    | Daily          | [solution](<markdowns/_1110. Delete Nodes And Return Forest.md>)                                             | py                               | Jul 17, 2024    |
-| 1122 | [Relative Sort Array](<https://leetcode.com/problems/relative-sort-array>)                                                                                                               | Easy    | Daily          | [solution](<markdowns/_1122. Relative Sort Array.md>)                                                        | java, py                         | Jun 11, 2024    |
-| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                                                 | Easy    |                | [solution](<markdowns/_1161. Maximum Level Sum of a Binary Tree.md>)                                         | py                               | Jul 17, 2024    |
-| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                                 | Easy    |                | [solution](<markdowns/_1166. Design File System.md>)                                                         | py                               | Jun 28, 2024    |
-| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                                 | Easy    |                | [solution](<markdowns/_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                         | py                               | Jun 15, 2024    |
-| 1184 | [Distance Between Bus Stops](<https://leetcode.com/problems/distance-between-bus-stops>)                                                                                                 | Easy    |                | [solution](<markdowns/_1184. Distance Between Bus Stops.md>)                                                 | py                               | May 31, 2024    |
-| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Easy    | Daily          | [solution](<markdowns/_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                               | Jul 11, 2024    |
-| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                                               | Easy    |                | [solution](<markdowns/_1209. Remove All Adjacent Duplicates in String II.md>)                                | py                               | Jun 19, 2024    |
-| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Easy    |                | [solution](<markdowns/_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                               | May 31, 2024    |
-| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Easy    |                | [solution](<markdowns/_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                               | Jun 28, 2024    |
-| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Easy    |                | [solution](<markdowns/_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                               | Jun 29, 2024    |
-| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Easy    | Daily          | [solution](<markdowns/_1248. Count Number of Nice Subarrays.md>)                                             | py                               | Jun 22, 2024    |
-| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                                     | Easy    |                | [solution](<markdowns/_1249. Minimum Remove to Make Valid Parentheses.md>)                                   | py                               | Jun 10, 2024    |
-| 1252 | [Cells with Odd Values in a Matrix](<https://leetcode.com/problems/cells-with-odd-values-in-a-matrix>)                                                                                   | Easy    |                | [solution](<markdowns/_1252. Cells with Odd Values in a Matrix.md>)                                          | c                                | Jun 04, 2024    |
-| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Easy    |                | [solution](<markdowns/_1254. Number of Closed Islands.md>)                                                   | py                               | Jun 26, 2024    |
-| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                                         | Easy    |                | [solution](<markdowns/_1265. Print Immutable Linked List in Reverse.md>)                                     | c, py                            | Jun 06, 2024    |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Easy    |                | [solution](<markdowns/_1268. Search Suggestions System.md>)                                                  | py                               | Jun 29, 2024    |
-| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Easy    |                | [solution](<markdowns/_1282. Group the People Given the Group Size They Belong To.md>)                       | py                               | Jun 28, 2024    |
-| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                                                 | Easy    |                | [solution](<markdowns/_1302. Deepest Leaves Sum.md>)                                                         | c, js, py                        | Jun 07, 2024    |
-| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                                       | Easy    |                | [solution](<markdowns/_1305. All Elements in Two Binary Search Trees.md>)                                    | java                             | Jun 24, 2024    |
-| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                                                   | Easy    |                | [solution](<markdowns/_1315. Sum of Nodes with Even-Valued Grandparent.md>)                                  | py                               | Jun 12, 2024    |
-| 1317 | [Convert Integer to the Sum of Two No-Zero Integers](<https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers>)                                                 | Easy    |                | [solution](<markdowns/_1317. Convert Integer to the Sum of Two No-Zero Integers.md>)                         | c                                | Jun 04, 2024    |
-| 1351 | [Count Negative Numbers in a Sorted Matrix](<https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix>)                                                                   | Easy    |                | [solution](<markdowns/_1351. Count Negative Numbers in a Sorted Matrix.md>)                                  | java, py                         | Jun 01, 2024    |
-| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                                             | Easy    |                | [solution](<markdowns/_1372. Longest ZigZag Path in a Binary Tree.md>)                                       | py                               | Jul 05, 2024    |
-| 1380 | [Lucky Numbers in a Matrix](<https://leetcode.com/problems/lucky-numbers-in-a-matrix>)                                                                                                   | Easy    | Daily          | [solution](<markdowns/_1380. Lucky Numbers in a Matrix.md>)                                                  | js, py                           | Jul 19, 2024    |
-| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Easy    |                | [solution](<markdowns/_1381. Design a Stack With Increment Operation.md>)                                    | py                               | Jul 06, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Easy    | Daily          | [solution](<markdowns/_1382. Balance a Binary Search Tree.md>)                                               | py                               | Jun 29, 2024    |
-| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Easy    | Daily          | [solution](<markdowns/_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                               | Jun 08, 2024    |
-| 1426 | [Counting Elements](<https://leetcode.com/problems/counting-elements>)                                                                                                                   | Easy    |                | [solution](<markdowns/_1426. Counting Elements.md>)                                                          | c                                | Jun 04, 2024    |
-| 1436 | [Destination City](<https://leetcode.com/problems/destination-city>)                                                                                                                     | Easy    |                | [solution](<markdowns/_1436. Destination City.md>)                                                           | java                             | Jun 01, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily          | [solution](<markdowns/_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                             | Jun 24, 2024    |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Easy    | Daily          | [solution](<markdowns/_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                               | Jun 08, 2024    |
-| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                                       | Easy    | N150           | [solution](<markdowns/_1448. Count Good Nodes in Binary Tree.md>)                                            | java                             | Jul 04, 2024    |
-| 1455 | [Check If a Word Occurs As a Prefix of Any Word in a Sentence](<https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence>)                             | Easy    |                | [solution](<markdowns/_1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence.md>)               | py                               | Jun 01, 2024    |
-| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                                   | Easy    |                | [solution](<markdowns/_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                                  | py                               | Jul 05, 2024    |
-| 1460 | [Make Two Arrays Equal by Reversing Subarrays](<https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays>)                                                             | Easy    |                | [solution](<markdowns/_1460. Make Two Arrays Equal by Reversing Subarrays.md>)                               | c                                | Jun 04, 2024    |
-| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                                           | Easy    |                | [solution](<markdowns/_1461. Check If a String Contains All Binary Codes of Size K.md>)                      | py                               | Jul 12, 2024    |
-| 1470 | [Shuffle the Array](<https://leetcode.com/problems/shuffle-the-array>)                                                                                                                   | Easy    |                | [solution](<markdowns/_1470. Shuffle the Array.md>)                                                          | c                                | Jun 03, 2024    |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Easy    |                | [solution](<markdowns/_1472. Design Browser History.md>)                                                     | py                               | Jul 06, 2024    |
-| 1474 | [Delete N Nodes After M Nodes of a Linked List](<https://leetcode.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list>)                                                           | Easy    |                | [solution](<markdowns/_1474. Delete N Nodes After M Nodes of a Linked List.md>)                              | c, java                          | Jun 07, 2024    |
-| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Easy    |                | [solution](<markdowns/_1481. Least Number of Unique Integers after K Removals.md>)                           | py                               | Jun 15, 2024    |
-| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Easy    |                | [solution](<markdowns/_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                               | Jun 19, 2024    |
-| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                                                     | Easy    |                | [solution](<markdowns/_1490. Clone N-ary Tree.md>)                                                           | java, py                         | Jun 02, 2024    |
-| 1502 | [Can Make Arithmetic Progression From Sequence](<https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence>)                                                           | Easy    |                | [solution](<markdowns/_1502. Can Make Arithmetic Progression From Sequence.md>)                              | c, py                            | Jun 04, 2024    |
-| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Easy    | Daily          | [solution](<markdowns/_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py                 | Jul 03, 2024    |
-| 1518 | [Water Bottles](<https://leetcode.com/problems/water-bottles>)                                                                                                                           | Easy    | Daily          | [solution](<markdowns/_1518. Water Bottles.md>)                                                              | c, cpp, cs, java, js, py, ts     | Jul 07, 2024    |
-| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                                                         | Easy    |                | [solution](<markdowns/_1522. Diameter of N-Ary Tree.md>)                                                     | py                               | Jul 03, 2024    |
-| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                                           | Easy    |                | [solution](<markdowns/_1525. Number of Good Ways to Split a String.md>)                                      | py                               | Jun 01, 2024    |
-| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Easy    | Daily          | [solution](<markdowns/_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                               | Jul 18, 2024    |
-| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Easy    |                | [solution](<markdowns/_1535. Find the Winner of an Array Game.md>)                                           | py                               | Jun 08, 2024    |
-| 1550 | [Three Consecutive Odds](<https://leetcode.com/problems/three-consecutive-odds>)                                                                                                         | Easy    | Daily          | [solution](<markdowns/_1550. Three Consecutive Odds.md>)                                                     | c, py                            | Jul 01, 2024    |
-| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                                         | Easy    |                | [solution](<markdowns/_1551. Minimum Operations to Make Array Equal.md>)                                     | c, java, js, kt, py, rb, rs      | Jun 13, 2024    |
-| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Easy    | Daily          | [solution](<markdowns/_1552. Magnetic Force Between Two Balls.md>)                                           | py                               | Jun 20, 2024    |
-| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Easy    |                | [solution](<markdowns/_1561. Maximum Number of Coins You Can Get.md>)                                        | py                               | Jun 23, 2024    |
-| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Easy    |                | [solution](<markdowns/_1564. Put Boxes Into the Warehouse I.md>)                                             | py                               | Jun 15, 2024    |
-| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Easy    |                | [solution](<markdowns/_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py                      | Jun 06, 2024    |
-| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Easy    | Weekly Premium | [solution](<markdowns/_1580. Put Boxes Into the Warehouse II.md>)                                            | py                               | Jun 15, 2024    |
-| 1598 | [Crawler Log Folder](<https://leetcode.com/problems/crawler-log-folder>)                                                                                                                 | Easy    | Daily          | [solution](<markdowns/_1598. Crawler Log Folder.md>)                                                         | c, js                            | Jul 10, 2024    |
-| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                                         | Easy    |                | [solution](<markdowns/_1602. Find Nearest Right Node in Binary Tree.md>)                                     | java, py                         | Jul 03, 2024    |
-| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Easy    | Daily          | [solution](<markdowns/_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                               | Jul 20, 2024    |
-| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                                           | Easy    |                | [solution](<markdowns/_1609. Even Odd Tree.md>)                                                              | py                               | Jul 05, 2024    |
-| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                                                 | Easy    |                | [solution](<markdowns/_1641. Count Sorted Vowel Strings.md>)                                                 | c, cpp, java                     | Jun 24, 2024    |
-| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                                               | Easy    |                | [solution](<markdowns/_1650. Lowest Common Ancestor of a Binary Tree III.md>)                                | py                               | Jun 10, 2024    |
-| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                                 | Easy    |                | [solution](<markdowns/_1657. Determine if Two Strings Are Close.md>)                                         | py                               | Jul 13, 2024    |
-| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                                           | Easy    |                | [solution](<markdowns/_1660. Correct a Binary Tree.md>)                                                      | py                               | Jun 27, 2024    |
-| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                                           | Easy    |                | [solution](<markdowns/_1669. Merge In Between Linked Lists.md>)                                              | c                                | Jun 24, 2024    |
-| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                                                 | Easy    |                | [solution](<markdowns/_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                                 | py                               | Jun 29, 2024    |
-| 1684 | [Count the Number of Consistent Strings](<https://leetcode.com/problems/count-the-number-of-consistent-strings>)                                                                         | Easy    |                | [solution](<markdowns/_1684. Count the Number of Consistent Strings.md>)                                     | c, py                            | Jun 06, 2024    |
-| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                                       | Easy    |                | [solution](<markdowns/_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)                    | c, java                          | Jun 22, 2024    |
-| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Easy    |                | [solution](<markdowns/_1696. Jump Game VI.md>)                                                               | java, py                         | Jul 03, 2024    |
-| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                                   | Easy    |                | [solution](<markdowns/_1698. Number of Distinct Substrings in a String.md>)                                  | java, py                         | Jun 02, 2024    |
-| 1700 | [Number of Students Unable to Eat Lunch](<https://leetcode.com/problems/number-of-students-unable-to-eat-lunch>)                                                                         | Easy    |                | [solution](<markdowns/_1700. Number of Students Unable to Eat Lunch.md>)                                     | py                               | Jun 02, 2024    |
-| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Easy    | Daily          | [solution](<markdowns/_1701. Average Waiting Time.md>)                                                       | js, py                           | Jul 09, 2024    |
-| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Easy    | Daily          | [solution](<markdowns/_1717. Maximum Score From Removing Substrings.md>)                                     | py                               | Jul 12, 2024    |
-| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                                       | Easy    |                | [solution](<markdowns/_1721. Swapping Nodes in a Linked List.md>)                                            | c                                | Jun 07, 2024    |
-| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Easy    |                | [solution](<markdowns/_1730. Shortest Path to Get Food.md>)                                                  | py                               | Jun 26, 2024    |
-| 1736 | [Latest Time by Replacing Hidden Digits](<https://leetcode.com/problems/latest-time-by-replacing-hidden-digits>)                                                                         | Easy    |                | [solution](<markdowns/_1736. Latest Time by Replacing Hidden Digits.md>)                                     | c                                | Jun 03, 2024    |
-| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                                         | Easy    | Weekly Premium | [solution](<markdowns/_1740. Find Distance in a Binary Tree.md>)                                             | py                               | Jul 15, 2024    |
-| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Easy    |                | [solution](<markdowns/_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                               | Jun 27, 2024    |
-| 1748 | [Sum of Unique Elements](<https://leetcode.com/problems/sum-of-unique-elements>)                                                                                                         | Easy    |                | [solution](<markdowns/_1748. Sum of Unique Elements.md>)                                                     | c                                | Jun 06, 2024    |
-| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                                           | Easy    |                | [solution](<markdowns/_1759. Count Number of Homogenous Substrings.md>)                                      | c, java                          | Jun 10, 2024    |
-| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Easy    |                | [solution](<markdowns/_1762. Buildings With an Ocean View.md>)                                               | py                               | Jun 10, 2024    |
-| 1768 | [Merge Strings Alternately](<https://leetcode.com/problems/merge-strings-alternately>)                                                                                                   | Easy    |                | [solution](<markdowns/_1768. Merge Strings Alternately.md>)                                                  | java                             | Jul 01, 2024    |
-| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                                                                                   | Easy    |                | [solution](<markdowns/_1783. Grand Slam Titles.md>)                                                          | sql                              | Jun 07, 2024    |
-| 1791 | [Find Center of Star Graph](<https://leetcode.com/problems/find-center-of-star-graph>)                                                                                                   | Easy    | Daily          | [solution](<markdowns/_1791. Find Center of Star Graph.md>)                                                  | c, cpp, java, py                 | Jun 27, 2024    |
-| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                                         | Easy    |                | [solution](<markdowns/_1804. Implement Trie II (Prefix Tree).md>)                                            | py                               | Jun 27, 2024    |
-| 1822 | [Sign of the Product of an Array](<https://leetcode.com/problems/sign-of-the-product-of-an-array>)                                                                                       | Easy    |                | [solution](<markdowns/_1822. Sign of the Product of an Array.md>)                                            | c                                | Jun 06, 2024    |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Easy    | Daily          | [solution](<markdowns/_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py             | Jul 08, 2024    |
-| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Easy    |                | [solution](<markdowns/_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py                      | Jun 23, 2024    |
-| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                                         | Easy    | Weekly Premium | [solution](<markdowns/_1836. Remove Duplicates From an Unsorted Linked List.md>)                             | java, py                         | Jul 08, 2024    |
-| 1844 | [Replace All Digits with Characters](<https://leetcode.com/problems/replace-all-digits-with-characters>)                                                                                 | Easy    |                | [solution](<markdowns/_1844. Replace All Digits with Characters.md>)                                         | py                               | Jun 29, 2024    |
-| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Easy    |                | [solution](<markdowns/_1852. Distinct Numbers in Each Subarray.md>)                                          | java                             | Jun 27, 2024    |
-| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                                                         | Easy    |                | [solution](<markdowns/_1858. Longest Word With All Prefixes.md>)                                             | py                               | Jun 29, 2024    |
-| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Easy    |                | [solution](<markdowns/_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                          | Jun 22, 2024    |
-| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Easy    |                | [solution](<markdowns/_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                               | Jun 23, 2024    |
-| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                                                   | Easy    |                | [solution](<markdowns/_1884. Egg Drop With 2 Eggs and N Floors.md>)                                          | c, java, js                      | Jul 11, 2024    |
-| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Easy    | Weekly Premium | [solution](<markdowns/_1885. Count Pairs in Two Arrays.md>)                                                  | py                               | Jun 08, 2024    |
-| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Easy    |                | [solution](<markdowns/_1905. Count Sub Islands.md>)                                                          | py                               | Jun 24, 2024    |
-| 1909 | [Remove One Element to Make the Array Strictly Increasing](<https://leetcode.com/problems/remove-one-element-to-make-the-array-strictly-increasing>)                                     | Easy    |                | [solution](<markdowns/_1909. Remove One Element to Make the Array Strictly Increasing.md>)                   | c                                | Jun 17, 2024    |
-| 1929 | [Concatenation of Array](<https://leetcode.com/problems/concatenation-of-array>)                                                                                                         | Easy    |                | [solution](<markdowns/_1929. Concatenation of Array.md>)                                                     | c, java, py                      | Jun 03, 2024    |
-| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Easy    | Weekly Premium | [solution](<markdowns/_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                         | Jun 01, 2024    |
-| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                                                       | Easy    |                | [solution](<markdowns/_1973. Count Nodes Equal to Sum of Descendants.md>)                                    | c                                | Jun 23, 2024    |
-| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Easy    |                | [solution](<markdowns/_1980. Find Unique Binary String.md>)                                                  | c, py                            | Jun 27, 2024    |
-| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Easy    |                | [solution](<markdowns/_1992. Find All Groups of Farmland.md>)                                                | java, py                         | Jun 24, 2024    |
-| 2011 | [Final Value of Variable After Performing Operations](<https://leetcode.com/problems/final-value-of-variable-after-performing-operations>)                                               | Easy    |                | [solution](<markdowns/_2011. Final Value of Variable After Performing Operations.md>)                        | c                                | Jun 03, 2024    |
-| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Easy    | N150           | [solution](<markdowns/_2013. Detect Squares.md>)                                                             | py                               | Jun 28, 2024    |
-| 2037 | [Minimum Number of Moves to Seat Everyone](<https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone>)                                                                     | Easy    | Daily          | [solution](<markdowns/_2037. Minimum Number of Moves to Seat Everyone.md>)                                   | c, py                            | Jun 03, 2024    |
-| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                                           | Easy    |                | [solution](<markdowns/_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                      | py                               | Jul 04, 2024    |
-| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Easy    | Daily          | [solution](<markdowns/_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                    | Jul 05, 2024    |
-| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                                 | Easy    | Weekly Premium | [solution](<markdowns/_2083. Substrings That Begin and End With the Same Letter.md>)                         | c, py                            | Jun 10, 2024    |
-| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                               | Easy    |                | [solution](<markdowns/_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                        | java                             | Jul 01, 2024    |
-| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                                       | Easy    |                | [solution](<markdowns/_2095. Delete the Middle Node of a Linked List.md>)                                    | c, java                          | Jun 07, 2024    |
-| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Easy    | Daily          | [solution](<markdowns/_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                               | Jul 16, 2024    |
-| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                                   | Easy    |                | [solution](<markdowns/_2130. Maximum Twin Sum of a Linked List.md>)                                          | py                               | Jun 21, 2024    |
-| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Easy    |                | [solution](<markdowns/_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                            | Jun 10, 2024    |
-| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                                       | Easy    |                | [solution](<markdowns/_2165. Smallest Value of the Rearranged Number.md>)                                    | py                               | Jul 01, 2024    |
-| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Easy    | Daily          | [solution](<markdowns/_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py                 | Jul 04, 2024    |
-| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Easy    | Daily          | [solution](<markdowns/_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                         | Jun 29, 2024    |
-| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Easy    | Daily          | [solution](<markdowns/_2196. Create Binary Tree From Descriptions.md>)                                       | py                               | Jul 15, 2024    |
-| 2206 | [Divide Array Into Equal Pairs](<https://leetcode.com/problems/divide-array-into-equal-pairs>)                                                                                           | Easy    |                | [solution](<markdowns/_2206. Divide Array Into Equal Pairs.md>)                                              | c, py                            | Jun 08, 2024    |
-| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                                 | Easy    |                | [solution](<markdowns/_2211. Count Collisions on a Road.md>)                                                 | py                               | Jul 14, 2024    |
-| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Easy    |                | [solution](<markdowns/_2221. Find Triangular Sum of an Array.md>)                                            | c, java                          | Jun 27, 2024    |
-| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Easy    |                | [solution](<markdowns/_2225. Find Players With Zero or One Losses.md>)                                       | java                             | Jun 24, 2024    |
-| 2248 | [Intersection of Multiple Arrays](<https://leetcode.com/problems/intersection-of-multiple-arrays>)                                                                                       | Easy    |                | [solution](<markdowns/_2248. Intersection of Multiple Arrays.md>)                                            | py                               | May 31, 2024    |
-| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                                                       | Easy    |                | [solution](<markdowns/_2265. Count Nodes Equal to Average of Subtree.md>)                                    | js, py                           | Jun 07, 2024    |
-| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                             | Easy    |                | [solution](<markdowns/_2268. Minimum Number of Keypresses.md>)                                               | py                               | Jul 05, 2024    |
-| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Easy    | Daily          | [solution](<markdowns/_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py                 | Jun 28, 2024    |
-| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Easy    |                | [solution](<markdowns/_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py                 | Jun 24, 2024    |
-| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Easy    |                | [solution](<markdowns/_2352. Equal Row and Column Pairs.md>)                                                 | py                               | Jun 27, 2024    |
-| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Easy    |                | [solution](<markdowns/_2365. Task Scheduler II.md>)                                                          | py                               | Jun 29, 2024    |
-| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                                             | Easy    |                | [solution](<markdowns/_2374. Node With Highest Edge Score.md>)                                               | py                               | Jun 18, 2024    |
-| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                                           | Easy    |                | [solution](<markdowns/_2385. Amount of Time for Binary Tree to Be Infected.md>)                              | py                               | Jun 26, 2024    |
-| 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                                                             | Easy    |                | [solution](<markdowns/_2389. Longest Subsequence With Limited Sum.md>)                                       | py                               | Jun 01, 2024    |
-| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                                             | Easy    |                | [solution](<markdowns/_2390. Removing Stars From a String.md>)                                               | java, py                         | Jun 02, 2024    |
-| 2395 | [Find Subarrays With Equal Sum](<https://leetcode.com/problems/find-subarrays-with-equal-sum>)                                                                                           | Easy    |                | [solution](<markdowns/_2395. Find Subarrays With Equal Sum.md>)                                              | py                               | May 31, 2024    |
-| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                                               | Easy    |                | [solution](<markdowns/_2396. Strictly Palindromic Number.md>)                                                | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
-| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                               | Easy    |                | [solution](<markdowns/_2405. Optimal Partition of String.md>)                                                | py                               | Jun 23, 2024    |
-| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                                                   | Easy    |                | [solution](<markdowns/_2415. Reverse Odd Levels of Binary Tree.md>)                                          | py                               | Jun 23, 2024    |
-| 2423 | [Remove Letter To Equalize Frequency](<https://leetcode.com/problems/remove-letter-to-equalize-frequency>)                                                                               | Easy    |                | [solution](<markdowns/_2423. Remove Letter To Equalize Frequency.md>)                                        | py                               | Jun 17, 2024    |
-| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Easy    |                | [solution](<markdowns/_2433. Find The Original Array of Prefix Xor.md>)                                      | py                               | May 31, 2024    |
-| 2455 | [Average Value of Even Numbers That Are Divisible by Three](<https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three>)                                   | Easy    |                | [solution](<markdowns/_2455. Average Value of Even Numbers That Are Divisible by Three.md>)                  | java                             | Jul 04, 2024    |
-| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Easy    |                | [solution](<markdowns/_2473. Minimum Cost to Buy Apples.md>)                                                 | py                               | Jun 29, 2024    |
-| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Easy    |                | [solution](<markdowns/_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                               | Jun 07, 2024    |
-| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Easy    | Daily          | [solution](<markdowns/_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                      | Jun 03, 2024    |
-| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                                           | Easy    |                | [solution](<markdowns/_2487. Remove Nodes From Linked List.md>)                                              | py                               | Jun 12, 2024    |
-| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Easy    |                | [solution](<markdowns/_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                         | Jun 24, 2024    |
-| 2570 | [Merge Two 2D Arrays by Summing Values](<https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values>)                                                                           | Easy    |                | [solution](<markdowns/_2570. Merge Two 2D Arrays by Summing Values.md>)                                      | c                                | Jun 10, 2024    |
-| 2582 | [Pass the Pillow](<https://leetcode.com/problems/pass-the-pillow>)                                                                                                                       | Easy    | Daily          | [solution](<markdowns/_2582. Pass the Pillow.md>)                                                            | c, cpp, cs, java, js, py         | Jul 06, 2024    |
-| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Easy    |                | [solution](<markdowns/_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                               | Jun 07, 2024    |
-| 2619 | [Array Prototype Last](<https://leetcode.com/problems/array-prototype-last>)                                                                                                             | Easy    |                | [solution](<markdowns/_2619. Array Prototype Last.md>)                                                       | js                               | Jul 10, 2024    |
-| 2620 | [Counter](<https://leetcode.com/problems/counter>)                                                                                                                                       | Easy    |                | [solution](<markdowns/_2620. Counter.md>)                                                                    | js                               | Jul 09, 2024    |
-| 2621 | [Sleep](<https://leetcode.com/problems/sleep>)                                                                                                                                           | Easy    |                | [solution](<markdowns/_2621. Sleep.md>)                                                                      | js                               | Jul 09, 2024    |
-| 2623 | [Memoize](<https://leetcode.com/problems/memoize>)                                                                                                                                       | Easy    |                | [solution](<markdowns/_2623. Memoize.md>)                                                                    | js                               | Jul 09, 2024    |
-| 2624 | [Snail Traversal](<https://leetcode.com/problems/snail-traversal>)                                                                                                                       | Easy    |                | [solution](<markdowns/_2624. Snail Traversal.md>)                                                            | js                               | Jul 09, 2024    |
-| 2626 | [Array Reduce Transformation](<https://leetcode.com/problems/array-reduce-transformation>)                                                                                               | Easy    |                | [solution](<markdowns/_2626. Array Reduce Transformation.md>)                                                | js                               | Jul 09, 2024    |
-| 2629 | [Function Composition](<https://leetcode.com/problems/function-composition>)                                                                                                             | Easy    |                | [solution](<markdowns/_2629. Function Composition.md>)                                                       | js                               | Jul 09, 2024    |
-| 2634 | [Filter Elements from Array](<https://leetcode.com/problems/filter-elements-from-array>)                                                                                                 | Easy    |                | [solution](<markdowns/_2634. Filter Elements from Array.md>)                                                 | js                               | Jul 09, 2024    |
-| 2635 | [Apply Transform Over Each Element in Array](<https://leetcode.com/problems/apply-transform-over-each-element-in-array>)                                                                 | Easy    |                | [solution](<markdowns/_2635. Apply Transform Over Each Element in Array.md>)                                 | js                               | Jul 09, 2024    |
-| 2665 | [Counter II](<https://leetcode.com/problems/counter-ii>)                                                                                                                                 | Easy    |                | [solution](<markdowns/_2665. Counter II.md>)                                                                 | js                               | Jul 09, 2024    |
-| 2666 | [Allow One Function Call](<https://leetcode.com/problems/allow-one-function-call>)                                                                                                       | Easy    |                | [solution](<markdowns/_2666. Allow One Function Call.md>)                                                    | js                               | Jul 09, 2024    |
-| 2667 | [Create Hello World Function](<https://leetcode.com/problems/create-hello-world-function>)                                                                                               | Easy    |                | [solution](<markdowns/_2667. Create Hello World Function.md>)                                                | js                               | Jul 09, 2024    |
-| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                                                   | Easy    |                | [solution](<markdowns/_2671. Frequency Tracker.md>)                                                          | py                               | Jun 28, 2024    |
-| 2678 | [Number of Senior Citizens](<https://leetcode.com/problems/number-of-senior-citizens>)                                                                                                   | Easy    |                | [solution](<markdowns/_2678. Number of Senior Citizens.md>)                                                  | java                             | May 22, 2024    |
-| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Easy    |                | [solution](<markdowns/_2679. Sum in a Matrix.md>)                                                            | java                             | May 22, 2024    |
-| 2703 | [Return Length of Arguments Passed](<https://leetcode.com/problems/return-length-of-arguments-passed>)                                                                                   | Easy    |                | [solution](<markdowns/_2703. Return Length of Arguments Passed.md>)                                          | js, ts                           | Jul 09, 2024    |
-| 2704 | [To Be Or Not To Be](<https://leetcode.com/problems/to-be-or-not-to-be>)                                                                                                                 | Easy    |                | [solution](<markdowns/_2704. To Be Or Not To Be.md>)                                                         | js                               | Jul 09, 2024    |
-| 2723 | [Add Two Promises](<https://leetcode.com/problems/add-two-promises>)                                                                                                                     | Easy    |                | [solution](<markdowns/_2723. Add Two Promises.md>)                                                           | js                               | Jul 09, 2024    |
-| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                               | Easy    |                | [solution](<markdowns/_2734. Lexicographically Smallest String After Substring Operation.md>)                | py                               | Jun 29, 2024    |
-| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Easy    | Weekly Premium | [solution](<markdowns/_2743. Count Substrings Without Repeating Character.md>)                               | java, py                         | Jun 22, 2024    |
-| 2796 | [Repeat String](<https://leetcode.com/problems/repeat-string>)                                                                                                                           | Easy    |                | [solution](<markdowns/_2796. Repeat String.md>)                                                              | js                               | Jul 09, 2024    |
-| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                                         | Easy    |                | [solution](<markdowns/_2807. Insert Greatest Common Divisors in Linked List.md>)                             | py                               | Jun 13, 2024    |
-| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                             | Easy    |                | [solution](<markdowns/_2816. Double a Number Represented as a Linked List.md>)                               | c                                | Jul 04, 2024    |
-| 2886 | [Change Data Type](<https://leetcode.com/problems/change-data-type>)                                                                                                                     | Easy    |                | [solution](<markdowns/_2886. Change Data Type.md>)                                                           | py                               | May 30, 2024    |
-| 2894 | [Divisible and Non-divisible Sums Difference](<https://leetcode.com/problems/divisible-and-non-divisible-sums-difference>)                                                               | Easy    |                | [solution](<markdowns/_2894. Divisible and Non-divisible Sums Difference.md>)                                | py                               | May 22, 2024    |
-| 2942 | [Find Words Containing Character](<https://leetcode.com/problems/find-words-containing-character>)                                                                                       | Easy    |                | [solution](<markdowns/_2942. Find Words Containing Character.md>)                                            | c                                | Jun 06, 2024    |
-| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Easy    |                | [solution](<markdowns/_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                         | Jun 12, 2024    |
-| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Easy    |                | [solution](<markdowns/_3043. Find the Length of the Longest Common Prefix.md>)                               | py                               | Jun 28, 2024    |
-| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                                 | Easy    |                | [solution](<markdowns/_3064. Guess the Number Using Bitwise Questions I.md>)                                 | c, py                            | Jun 06, 2024    |
-| 3074 | [Apple Redistribution into Boxes](<https://leetcode.com/problems/apple-redistribution-into-boxes>)                                                                                       | Easy    |                | [solution](<markdowns/_3074. Apple Redistribution into Boxes.md>)                                            | py                               | May 23, 2024    |
-| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)                 | Easy    |                | [solution](<markdowns/_3106. Lexicographically Smallest String After Operations With Constraint.md>)         | py                               | Jun 29, 2024    |
-| 3110 | [Score of a String](<https://leetcode.com/problems/score-of-a-string>)                                                                                                                   | Easy    | Daily          | [solution](<markdowns/_3110. Score of a String.md>)                                                          | java, py                         | Jun 01, 2024    |
-| 3136 | [Valid Word](<https://leetcode.com/problems/valid-word>)                                                                                                                                 | Easy    |                | [solution](<markdowns/_3136. Valid Word.md>)                                                                 | c, py                            | Jul 03, 2024    |
-| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                                       | Easy    |                | [solution](<markdowns/_3157. Find the Level of Tree with Minimum Sum.md>)                                    | py                               | Jul 05, 2024    |
-| 3168 | Weekly Contest 400 - q1 - [Minimum Number of Chairs in a Waiting Room](<https://leetcode.com/problems/minimum-number-of-chairs-in-a-waiting-room>)                                       | Easy    | Contest        | [solution](<markdowns/_3168. Minimum Number of Chairs in a Waiting Room.md>)                                 | py                               | Jul 07, 2024    |
-| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Easy    | Contest        | [solution](<markdowns/_3169. Count Days Without Meetings.md>)                                                | py                               | Jul 07, 2024    |
-| 3174 | Biweekly Contest 132 - q1 - [Clear Digits](<https://leetcode.com/problems/clear-digits>)                                                                                                 | Easy    | Contest        | [solution](<markdowns/_3174. Clear Digits.md>)                                                               | py                               | Jul 07, 2024    |
-| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Easy    | Contest        | [solution](<markdowns/_3175. Find The First Player to win K Games in a Row.md>)                              | py                               | Jul 07, 2024    |
-| 3178 | Weekly Contest 401 - q1 - [Find the Child Who Has the Ball After K Seconds](<https://leetcode.com/problems/find-the-child-who-has-the-ball-after-k-seconds>)                             | Easy    | Contest        | [solution](<markdowns/_3178. Find the Child Who Has the Ball After K Seconds.md>)                            | py                               | Jul 07, 2024    |
-| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Easy    | Contest        | [solution](<markdowns/_3179. Find the N-th Value After K Seconds.md>)                                        | py                               | Jul 07, 2024    |
-| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Easy    | Contest        | [solution](<markdowns/_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                            | Jul 07, 2024    |
-| 3184 | Weekly Contest 402 - q1 - [Count Pairs That Form a Complete Day I](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-i>)                                               | Easy    | Contest        | [solution](<markdowns/_3184. Count Pairs That Form a Complete Day I.md>)                                     | py                               | Jul 07, 2024    |
-| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Easy    | Contest        | [solution](<markdowns/_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                               | Jul 07, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Easy    | Contest        | [solution](<markdowns/_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                               | Jul 07, 2024    |
-| 3190 | [Find Minimum Operations to Make All Elements Divisible by Three](<https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three>)                       | Easy    |                | [solution](<markdowns/_3190. Find Minimum Operations to Make All Elements Divisible by Three.md>)            | java                             | Jun 22, 2024    |
-| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Easy    |                | [solution](<markdowns/_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                             | Jun 22, 2024    |
-| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Easy    |                | [solution](<markdowns/_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                             | Jun 22, 2024    |
-| 3194 | Weekly Contest 403 - q1 - [Minimum Average of Smallest and Largest Elements](<https://leetcode.com/problems/minimum-average-of-smallest-and-largest-elements>)                           | Easy    | Contest        | [solution](<markdowns/_3194. Minimum Average of Smallest and Largest Elements.md>)                           | py                               | Jul 07, 2024    |
-| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Easy    | Contest        | [solution](<markdowns/_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                               | Jul 07, 2024    |
-| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Easy    | Contest        | [solution](<markdowns/_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                               | Jul 07, 2024    |
-| 3210 | Weekly Contest 405 - q1 - [Find the Encrypted String](<https://leetcode.com/problems/find-the-encrypted-string>)                                                                         | Easy    | Contest        | [solution](<markdowns/_3210. Find the Encrypted String.md>)                                                  | py                               | Jul 07, 2024    |
-| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)                               | Easy    | Contest        | [solution](<markdowns/_3211. Generate Binary Strings Without Adjacent Zeros.md>)                             | js, py                           | Jul 07, 2024    |
-| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Easy    | Contest        | [solution](<markdowns/_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                               | Jul 07, 2024    |
-| 3226 | Weekly Contest 407 - q1 - [Number of Bit Changes to Make Two Integers Equal](<https://leetcode.com/problems/number-of-bit-changes-to-make-two-integers-equal>)                           | Easy    | Contest        | [solution](<markdowns/_3226. Number of Bit Changes to Make Two Integers Equal.md>)                           | py                               | Jul 21, 2024    |
-| 3227 | Weekly Contest 407 - q2 - [Vowels Game in a String](<https://leetcode.com/problems/vowels-game-in-a-string>)                                                                             | Easy    | Contest        | [solution](<markdowns/_3227. Vowels Game in a String.md>)                                                    | py                               | Jul 21, 2024    |
-| 3228 | Weekly Contest 407 - q3 - [Maximum Number of Operations to Move Ones to the End](<https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end>)                   | Easy    | Contest        | [solution](<markdowns/_3228. Maximum Number of Operations to Move Ones to the End.md>)                       | py                               | Jul 21, 2024    |
\ No newline at end of file
+|    # | Title                                                                                                                                                              | Level   | Cats      | Solution                                                                                          | Languages                    | Date Complete   |
+|-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:--------------------------------------------------------------------------------------------------|:-----------------------------|:----------------|
+|    1 | [Two Sum](<https://leetcode.com/problems/two-sum>)                                                                                                                 | Easy    | B75, N150 | [solution](<markdowns/_1. Two Sum.md>)                                                            | java, py                     | May 22, 2024    |
+|    9 | [Palindrome Number](<https://leetcode.com/problems/palindrome-number>)                                                                                             | Easy    |           | [solution](<markdowns/_9. Palindrome Number.md>)                                                  | java                         | May 22, 2024    |
+|   14 | [Longest Common Prefix](<https://leetcode.com/problems/longest-common-prefix>)                                                                                     | Easy    |           | [solution](<markdowns/_14. Longest Common Prefix.md>)                                             | java                         | May 22, 2024    |
+|   20 | [Valid Parentheses](<https://leetcode.com/problems/valid-parentheses>)                                                                                             | Easy    | B75, N150 | [solution](<markdowns/_20. Valid Parentheses.md>)                                                 | java                         | May 22, 2024    |
+|   21 | [Merge Two Sorted Lists](<https://leetcode.com/problems/merge-two-sorted-lists>)                                                                                   | Easy    | B75, N150 | [solution](<markdowns/_21. Merge Two Sorted Lists.md>)                                            | java                         | May 22, 2024    |
+|   26 | [Remove Duplicates from Sorted Array](<https://leetcode.com/problems/remove-duplicates-from-sorted-array>)                                                         | Easy    |           | [solution](<markdowns/_26. Remove Duplicates from Sorted Array.md>)                               | java                         | May 22, 2024    |
+|   27 | [Remove Element](<https://leetcode.com/problems/remove-element>)                                                                                                   | Easy    |           | [solution](<markdowns/_27. Remove Element.md>)                                                    | java, py                     | Jun 02, 2024    |
+|   28 | [Find the Index of the First Occurrence in a String](<https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string>)                           | Easy    |           | [solution](<markdowns/_28. Find the Index of the First Occurrence in a String.md>)                | py                           | May 22, 2024    |
+|   66 | [Plus One](<https://leetcode.com/problems/plus-one>)                                                                                                               | Easy    | N150      | [solution](<markdowns/_66. Plus One.md>)                                                          | c                            | Jun 03, 2024    |
+|   69 | [Sqrt(x)](<https://leetcode.com/problems/sqrtx>)                                                                                                                   | Easy    |           | [solution](<markdowns/_69. Sqrt(x).md>)                                                           | py                           | Jun 07, 2024    |
+|   70 | [Climbing Stairs](<https://leetcode.com/problems/climbing-stairs>)                                                                                                 | Easy    | B75, N150 | [solution](<markdowns/_70. Climbing Stairs.md>)                                                   | py                           | May 22, 2024    |
+|   94 | [Binary Tree Inorder Traversal](<https://leetcode.com/problems/binary-tree-inorder-traversal>)                                                                     | Easy    |           | [solution](<markdowns/_94. Binary Tree Inorder Traversal.md>)                                     | java, py                     | Jun 29, 2024    |
+|  100 | [Same Tree](<https://leetcode.com/problems/same-tree>)                                                                                                             | Easy    | B75, N150 | [solution](<markdowns/_100. Same Tree.md>)                                                        | py                           | Jul 03, 2024    |
+|  104 | [Maximum Depth of Binary Tree](<https://leetcode.com/problems/maximum-depth-of-binary-tree>)                                                                       | Easy    | B75, N150 | [solution](<markdowns/_104. Maximum Depth of Binary Tree.md>)                                     | py                           | Jul 04, 2024    |
+|  110 | [Balanced Binary Tree](<https://leetcode.com/problems/balanced-binary-tree>)                                                                                       | Easy    | N150      | [solution](<markdowns/_110. Balanced Binary Tree.md>)                                             | py                           | Jul 04, 2024    |
+|  111 | [Minimum Depth of Binary Tree](<https://leetcode.com/problems/minimum-depth-of-binary-tree>)                                                                       | Easy    |           | [solution](<markdowns/_111. Minimum Depth of Binary Tree.md>)                                     | c, java                      | Jun 07, 2024    |
+|  112 | [Path Sum](<https://leetcode.com/problems/path-sum>)                                                                                                               | Easy    |           | [solution](<markdowns/_112. Path Sum.md>)                                                         | py                           | Jul 03, 2024    |
+|  118 | [Pascal's Triangle](<https://leetcode.com/problems/pascals-triangle>)                                                                                              | Easy    |           | [solution](<markdowns/_118. Pascal's Triangle.md>)                                                | py                           | May 22, 2024    |
+|  121 | [Best Time to Buy and Sell Stock](<https://leetcode.com/problems/best-time-to-buy-and-sell-stock>)                                                                 | Easy    | B75, N150 | [solution](<markdowns/_121. Best Time to Buy and Sell Stock.md>)                                  | py                           | Jul 03, 2024    |
+|  125 | [Valid Palindrome](<https://leetcode.com/problems/valid-palindrome>)                                                                                               | Easy    | B75, N150 | [solution](<markdowns/_125. Valid Palindrome.md>)                                                 | c, py                        | Jun 07, 2024    |
+|  136 | [Single Number](<https://leetcode.com/problems/single-number>)                                                                                                     | Easy    | N150      | [solution](<markdowns/_136. Single Number.md>)                                                    | py                           | Jul 03, 2024    |
+|  141 | [Linked List Cycle](<https://leetcode.com/problems/linked-list-cycle>)                                                                                             | Easy    | B75, N150 | [solution](<markdowns/_141. Linked List Cycle.md>)                                                | c, py                        | Jun 04, 2024    |
+|  175 | [Combine Two Tables](<https://leetcode.com/problems/combine-two-tables>)                                                                                           | Easy    |           | [solution](<markdowns/_175. Combine Two Tables.md>)                                               | py, sql                      | May 22, 2024    |
+|  181 | [Employees Earning More Than Their Managers](<https://leetcode.com/problems/employees-earning-more-than-their-managers>)                                           | Easy    |           | [solution](<markdowns/_181. Employees Earning More Than Their Managers.md>)                       | sql                          | May 22, 2024    |
+|  182 | [Duplicate Emails](<https://leetcode.com/problems/duplicate-emails>)                                                                                               | Easy    |           | [solution](<markdowns/_182. Duplicate Emails.md>)                                                 | sql                          | May 22, 2024    |
+|  183 | [Customers Who Never Order](<https://leetcode.com/problems/customers-who-never-order>)                                                                             | Easy    |           | [solution](<markdowns/_183. Customers Who Never Order.md>)                                        | sql                          | May 22, 2024    |
+|  191 | [Number of 1 Bits](<https://leetcode.com/problems/number-of-1-bits>)                                                                                               | Easy    | B75, N150 | [solution](<markdowns/_191. Number of 1 Bits.md>)                                                 | py                           | Jul 03, 2024    |
+|  196 | [Delete Duplicate Emails](<https://leetcode.com/problems/delete-duplicate-emails>)                                                                                 | Easy    |           | [solution](<markdowns/_196. Delete Duplicate Emails.md>)                                          | py, sql                      | Jun 07, 2024    |
+|  197 | [Rising Temperature](<https://leetcode.com/problems/rising-temperature>)                                                                                           | Easy    |           | [solution](<markdowns/_197. Rising Temperature.md>)                                               | sql                          | May 22, 2024    |
+|  206 | [Reverse Linked List](<https://leetcode.com/problems/reverse-linked-list>)                                                                                         | Easy    | B75, N150 | [solution](<markdowns/_206. Reverse Linked List.md>)                                              | java                         | Jun 27, 2024    |
+|  217 | [Contains Duplicate](<https://leetcode.com/problems/contains-duplicate>)                                                                                           | Easy    | B75, N150 | [solution](<markdowns/_217. Contains Duplicate.md>)                                               | py                           | Jun 12, 2024    |
+|  226 | [Invert Binary Tree](<https://leetcode.com/problems/invert-binary-tree>)                                                                                           | Easy    | B75, N150 | [solution](<markdowns/_226. Invert Binary Tree.md>)                                               | py                           | Jul 03, 2024    |
+|  242 | [Valid Anagram](<https://leetcode.com/problems/valid-anagram>)                                                                                                     | Easy    | B75, N150 | [solution](<markdowns/_242. Valid Anagram.md>)                                                    | c, py                        | Jun 13, 2024    |
+|  292 | [Nim Game](<https://leetcode.com/problems/nim-game>)                                                                                                               | Easy    |           | [solution](<markdowns/_292. Nim Game.md>)                                                         | py                           | May 23, 2024    |
+|  344 | [Reverse String](<https://leetcode.com/problems/reverse-string>)                                                                                                   | Easy    | Daily     | [solution](<markdowns/_344. Reverse String.md>)                                                   | java, py                     | Jun 02, 2024    |
+|  345 | [Reverse Vowels of a String](<https://leetcode.com/problems/reverse-vowels-of-a-string>)                                                                           | Easy    |           | [solution](<markdowns/_345. Reverse Vowels of a String.md>)                                       | py                           | May 23, 2024    |
+|  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                     | Easy    | Daily     | [solution](<markdowns/_350. Intersection of Two Arrays II.md>)                                    | java, py                     | Jul 02, 2024    |
+|  374 | [Guess Number Higher or Lower](<https://leetcode.com/problems/guess-number-higher-or-lower>)                                                                       | Easy    |           | [solution](<markdowns/_374. Guess Number Higher or Lower.md>)                                     | java, py                     | Jun 02, 2024    |
+|  392 | [Is Subsequence](<https://leetcode.com/problems/is-subsequence>)                                                                                                   | Easy    |           | [solution](<markdowns/_392. Is Subsequence.md>)                                                   | java                         | Jun 22, 2024    |
+|  408 | [Valid Word Abbreviation](<https://leetcode.com/problems/valid-word-abbreviation>)                                                                                 | Easy    |           | [solution](<markdowns/_408. Valid Word Abbreviation.md>)                                          | py                           | Jun 02, 2024    |
+|  409 | [Longest Palindrome](<https://leetcode.com/problems/longest-palindrome>)                                                                                           | Easy    | Daily     | [solution](<markdowns/_409. Longest Palindrome.md>)                                               | c, py                        | Jun 04, 2024    |
+|  412 | [Fizz Buzz](<https://leetcode.com/problems/fizz-buzz>)                                                                                                             | Easy    |           | [solution](<markdowns/_412. Fizz Buzz.md>)                                                        | java, py                     | Jun 02, 2024    |
+|  414 | [Third Maximum Number](<https://leetcode.com/problems/third-maximum-number>)                                                                                       | Easy    |           | [solution](<markdowns/_414. Third Maximum Number.md>)                                             | py                           | May 23, 2024    |
+|  509 | [Fibonacci Number](<https://leetcode.com/problems/fibonacci-number>)                                                                                               | Easy    |           | [solution](<markdowns/_509. Fibonacci Number.md>)                                                 | c                            | Jun 17, 2024    |
+|  543 | [Diameter of Binary Tree](<https://leetcode.com/problems/diameter-of-binary-tree>)                                                                                 | Easy    | N150      | [solution](<markdowns/_543. Diameter of Binary Tree.md>)                                          | c, java, py                  | Jun 03, 2024    |
+|  572 | [Subtree of Another Tree](<https://leetcode.com/problems/subtree-of-another-tree>)                                                                                 | Easy    | B75, N150 | [solution](<markdowns/_572. Subtree of Another Tree.md>)                                          | py                           | Jun 03, 2024    |
+|  577 | [Employee Bonus](<https://leetcode.com/problems/employee-bonus>)                                                                                                   | Easy    |           | [solution](<markdowns/_577. Employee Bonus.md>)                                                   | sql                          | May 22, 2024    |
+|  584 | [Find Customer Referee](<https://leetcode.com/problems/find-customer-referee>)                                                                                     | Easy    |           | [solution](<markdowns/_584. Find Customer Referee.md>)                                            | sql                          | May 22, 2024    |
+|  586 | [Customer Placing the Largest Number of Orders](<https://leetcode.com/problems/customer-placing-the-largest-number-of-orders>)                                     | Easy    |           | [solution](<markdowns/_586. Customer Placing the Largest Number of Orders.md>)                    | sql                          | May 22, 2024    |
+|  595 | [Big Countries](<https://leetcode.com/problems/big-countries>)                                                                                                     | Easy    |           | [solution](<markdowns/_595. Big Countries.md>)                                                    | sql                          | May 22, 2024    |
+|  596 | [Classes More Than 5 Students](<https://leetcode.com/problems/classes-more-than-5-students>)                                                                       | Easy    |           | [solution](<markdowns/_596. Classes More Than 5 Students.md>)                                     | sql                          | May 22, 2024    |
+|  607 | [Sales Person](<https://leetcode.com/problems/sales-person>)                                                                                                       | Easy    |           | [solution](<markdowns/_607. Sales Person.md>)                                                     | sql                          | May 22, 2024    |
+|  619 | [Biggest Single Number](<https://leetcode.com/problems/biggest-single-number>)                                                                                     | Easy    |           | [solution](<markdowns/_619. Biggest Single Number.md>)                                            | sql                          | May 22, 2024    |
+|  637 | [Average of Levels in Binary Tree](<https://leetcode.com/problems/average-of-levels-in-binary-tree>)                                                               | Easy    |           | [solution](<markdowns/_637. Average of Levels in Binary Tree.md>)                                 | py                           | Jul 04, 2024    |
+|  645 | [Set Mismatch](<https://leetcode.com/problems/set-mismatch>)                                                                                                       | Easy    |           | [solution](<markdowns/_645. Set Mismatch.md>)                                                     | java, py                     | Jun 01, 2024    |
+|  700 | [Search in a Binary Search Tree](<https://leetcode.com/problems/search-in-a-binary-search-tree>)                                                                   | Easy    |           | [solution](<markdowns/_700. Search in a Binary Search Tree.md>)                                   | c, java, py                  | Jul 17, 2024    |
+|  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                                                 | Easy    | N150      | [solution](<markdowns/_703. Kth Largest Element in a Stream.md>)                                  | py                           | Jul 05, 2024    |
+|  744 | [Find Smallest Letter Greater Than Target](<https://leetcode.com/problems/find-smallest-letter-greater-than-target>)                                               | Easy    |           | [solution](<markdowns/_744. Find Smallest Letter Greater Than Target.md>)                         | java, py                     | Jun 01, 2024    |
+|  746 | [Min Cost Climbing Stairs](<https://leetcode.com/problems/min-cost-climbing-stairs>)                                                                               | Easy    | N150      | [solution](<markdowns/_746. Min Cost Climbing Stairs.md>)                                         | py                           | Jul 05, 2024    |
+|  771 | [Jewels and Stones](<https://leetcode.com/problems/jewels-and-stones>)                                                                                             | Easy    |           | [solution](<markdowns/_771. Jewels and Stones.md>)                                                | java, py                     | Jun 02, 2024    |
+|  867 | [Transpose Matrix](<https://leetcode.com/problems/transpose-matrix>)                                                                                               | Easy    |           | [solution](<markdowns/_867. Transpose Matrix.md>)                                                 | py                           | Jun 15, 2024    |
+|  977 | [Squares of a Sorted Array](<https://leetcode.com/problems/squares-of-a-sorted-array>)                                                                             | Easy    |           | [solution](<markdowns/_977. Squares of a Sorted Array.md>)                                        | py                           | Jun 21, 2024    |
+|  993 | [Cousins in Binary Tree](<https://leetcode.com/problems/cousins-in-binary-tree>)                                                                                   | Easy    |           | [solution](<markdowns/_993. Cousins in Binary Tree.md>)                                           | py                           | Jul 04, 2024    |
+| 1002 | [Find Common Characters](<https://leetcode.com/problems/find-common-characters>)                                                                                   | Easy    | Daily     | [solution](<markdowns/_1002. Find Common Characters.md>)                                          | py                           | Jun 08, 2024    |
+| 1018 | [Binary Prefix Divisible By 5](<https://leetcode.com/problems/binary-prefix-divisible-by-5>)                                                                       | Easy    |           | [solution](<markdowns/_1018. Binary Prefix Divisible By 5.md>)                                    | py                           | Jul 04, 2024    |
+| 1030 | [Matrix Cells in Distance Order](<https://leetcode.com/problems/matrix-cells-in-distance-order>)                                                                   | Easy    |           | [solution](<markdowns/_1030. Matrix Cells in Distance Order.md>)                                  | py                           | Jun 04, 2024    |
+| 1046 | [Last Stone Weight](<https://leetcode.com/problems/last-stone-weight>)                                                                                             | Easy    | N150      | [solution](<markdowns/_1046. Last Stone Weight.md>)                                               | py                           | Jun 04, 2024    |
+| 1051 | [Height Checker](<https://leetcode.com/problems/height-checker>)                                                                                                   | Easy    | Daily     | [solution](<markdowns/_1051. Height Checker.md>)                                                  | c, py                        | Jun 10, 2024    |
+| 1068 | [Product Sales Analysis I](<https://leetcode.com/problems/product-sales-analysis-i>)                                                                               | Easy    |           | [solution](<markdowns/_1068. Product Sales Analysis I.md>)                                        | sql                          | May 22, 2024    |
+| 1122 | [Relative Sort Array](<https://leetcode.com/problems/relative-sort-array>)                                                                                         | Easy    | Daily     | [solution](<markdowns/_1122. Relative Sort Array.md>)                                             | java, py                     | Jun 11, 2024    |
+| 1184 | [Distance Between Bus Stops](<https://leetcode.com/problems/distance-between-bus-stops>)                                                                           | Easy    |           | [solution](<markdowns/_1184. Distance Between Bus Stops.md>)                                      | py                           | May 31, 2024    |
+| 1252 | [Cells with Odd Values in a Matrix](<https://leetcode.com/problems/cells-with-odd-values-in-a-matrix>)                                                             | Easy    |           | [solution](<markdowns/_1252. Cells with Odd Values in a Matrix.md>)                               | c                            | Jun 04, 2024    |
+| 1317 | [Convert Integer to the Sum of Two No-Zero Integers](<https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers>)                           | Easy    |           | [solution](<markdowns/_1317. Convert Integer to the Sum of Two No-Zero Integers.md>)              | c                            | Jun 04, 2024    |
+| 1351 | [Count Negative Numbers in a Sorted Matrix](<https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix>)                                             | Easy    |           | [solution](<markdowns/_1351. Count Negative Numbers in a Sorted Matrix.md>)                       | java, py                     | Jun 01, 2024    |
+| 1380 | [Lucky Numbers in a Matrix](<https://leetcode.com/problems/lucky-numbers-in-a-matrix>)                                                                             | Easy    | Daily     | [solution](<markdowns/_1380. Lucky Numbers in a Matrix.md>)                                       | js, py                       | Jul 19, 2024    |
+| 1426 | [Counting Elements](<https://leetcode.com/problems/counting-elements>)                                                                                             | Easy    |           | [solution](<markdowns/_1426. Counting Elements.md>)                                               | c                            | Jun 04, 2024    |
+| 1436 | [Destination City](<https://leetcode.com/problems/destination-city>)                                                                                               | Easy    |           | [solution](<markdowns/_1436. Destination City.md>)                                                | java                         | Jun 01, 2024    |
+| 1455 | [Check If a Word Occurs As a Prefix of Any Word in a Sentence](<https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence>)       | Easy    |           | [solution](<markdowns/_1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence.md>)    | py                           | Jun 01, 2024    |
+| 1460 | [Make Two Arrays Equal by Reversing Subarrays](<https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays>)                                       | Easy    |           | [solution](<markdowns/_1460. Make Two Arrays Equal by Reversing Subarrays.md>)                    | c                            | Jun 04, 2024    |
+| 1470 | [Shuffle the Array](<https://leetcode.com/problems/shuffle-the-array>)                                                                                             | Easy    |           | [solution](<markdowns/_1470. Shuffle the Array.md>)                                               | c                            | Jun 03, 2024    |
+| 1474 | [Delete N Nodes After M Nodes of a Linked List](<https://leetcode.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list>)                                     | Easy    |           | [solution](<markdowns/_1474. Delete N Nodes After M Nodes of a Linked List.md>)                   | c, java                      | Jun 07, 2024    |
+| 1502 | [Can Make Arithmetic Progression From Sequence](<https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence>)                                     | Easy    |           | [solution](<markdowns/_1502. Can Make Arithmetic Progression From Sequence.md>)                   | c, py                        | Jun 04, 2024    |
+| 1518 | [Water Bottles](<https://leetcode.com/problems/water-bottles>)                                                                                                     | Easy    | Daily     | [solution](<markdowns/_1518. Water Bottles.md>)                                                   | c, cpp, cs, java, js, py, ts | Jul 07, 2024    |
+| 1550 | [Three Consecutive Odds](<https://leetcode.com/problems/three-consecutive-odds>)                                                                                   | Easy    | Daily     | [solution](<markdowns/_1550. Three Consecutive Odds.md>)                                          | c, py                        | Jul 01, 2024    |
+| 1598 | [Crawler Log Folder](<https://leetcode.com/problems/crawler-log-folder>)                                                                                           | Easy    | Daily     | [solution](<markdowns/_1598. Crawler Log Folder.md>)                                              | c, js                        | Jul 10, 2024    |
+| 1684 | [Count the Number of Consistent Strings](<https://leetcode.com/problems/count-the-number-of-consistent-strings>)                                                   | Easy    |           | [solution](<markdowns/_1684. Count the Number of Consistent Strings.md>)                          | c, py                        | Jun 06, 2024    |
+| 1700 | [Number of Students Unable to Eat Lunch](<https://leetcode.com/problems/number-of-students-unable-to-eat-lunch>)                                                   | Easy    |           | [solution](<markdowns/_1700. Number of Students Unable to Eat Lunch.md>)                          | py                           | Jun 02, 2024    |
+| 1736 | [Latest Time by Replacing Hidden Digits](<https://leetcode.com/problems/latest-time-by-replacing-hidden-digits>)                                                   | Easy    |           | [solution](<markdowns/_1736. Latest Time by Replacing Hidden Digits.md>)                          | c                            | Jun 03, 2024    |
+| 1748 | [Sum of Unique Elements](<https://leetcode.com/problems/sum-of-unique-elements>)                                                                                   | Easy    |           | [solution](<markdowns/_1748. Sum of Unique Elements.md>)                                          | c                            | Jun 06, 2024    |
+| 1768 | [Merge Strings Alternately](<https://leetcode.com/problems/merge-strings-alternately>)                                                                             | Easy    |           | [solution](<markdowns/_1768. Merge Strings Alternately.md>)                                       | java                         | Jul 01, 2024    |
+| 1791 | [Find Center of Star Graph](<https://leetcode.com/problems/find-center-of-star-graph>)                                                                             | Easy    | Daily     | [solution](<markdowns/_1791. Find Center of Star Graph.md>)                                       | c, cpp, java, py             | Jun 27, 2024    |
+| 1822 | [Sign of the Product of an Array](<https://leetcode.com/problems/sign-of-the-product-of-an-array>)                                                                 | Easy    |           | [solution](<markdowns/_1822. Sign of the Product of an Array.md>)                                 | c                            | Jun 06, 2024    |
+| 1844 | [Replace All Digits with Characters](<https://leetcode.com/problems/replace-all-digits-with-characters>)                                                           | Easy    |           | [solution](<markdowns/_1844. Replace All Digits with Characters.md>)                              | py                           | Jun 29, 2024    |
+| 1909 | [Remove One Element to Make the Array Strictly Increasing](<https://leetcode.com/problems/remove-one-element-to-make-the-array-strictly-increasing>)               | Easy    |           | [solution](<markdowns/_1909. Remove One Element to Make the Array Strictly Increasing.md>)        | c                            | Jun 17, 2024    |
+| 1929 | [Concatenation of Array](<https://leetcode.com/problems/concatenation-of-array>)                                                                                   | Easy    |           | [solution](<markdowns/_1929. Concatenation of Array.md>)                                          | c, java, py                  | Jun 03, 2024    |
+| 2011 | [Final Value of Variable After Performing Operations](<https://leetcode.com/problems/final-value-of-variable-after-performing-operations>)                         | Easy    |           | [solution](<markdowns/_2011. Final Value of Variable After Performing Operations.md>)             | c                            | Jun 03, 2024    |
+| 2037 | [Minimum Number of Moves to Seat Everyone](<https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone>)                                               | Easy    | Daily     | [solution](<markdowns/_2037. Minimum Number of Moves to Seat Everyone.md>)                        | c, py                        | Jun 03, 2024    |
+| 2206 | [Divide Array Into Equal Pairs](<https://leetcode.com/problems/divide-array-into-equal-pairs>)                                                                     | Easy    |           | [solution](<markdowns/_2206. Divide Array Into Equal Pairs.md>)                                   | c, py                        | Jun 08, 2024    |
+| 2248 | [Intersection of Multiple Arrays](<https://leetcode.com/problems/intersection-of-multiple-arrays>)                                                                 | Easy    |           | [solution](<markdowns/_2248. Intersection of Multiple Arrays.md>)                                 | py                           | May 31, 2024    |
+| 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                                       | Easy    |           | [solution](<markdowns/_2389. Longest Subsequence With Limited Sum.md>)                            | py                           | Jun 01, 2024    |
+| 2395 | [Find Subarrays With Equal Sum](<https://leetcode.com/problems/find-subarrays-with-equal-sum>)                                                                     | Easy    |           | [solution](<markdowns/_2395. Find Subarrays With Equal Sum.md>)                                   | py                           | May 31, 2024    |
+| 2423 | [Remove Letter To Equalize Frequency](<https://leetcode.com/problems/remove-letter-to-equalize-frequency>)                                                         | Easy    |           | [solution](<markdowns/_2423. Remove Letter To Equalize Frequency.md>)                             | py                           | Jun 17, 2024    |
+| 2455 | [Average Value of Even Numbers That Are Divisible by Three](<https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three>)             | Easy    |           | [solution](<markdowns/_2455. Average Value of Even Numbers That Are Divisible by Three.md>)       | java                         | Jul 04, 2024    |
+| 2570 | [Merge Two 2D Arrays by Summing Values](<https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values>)                                                     | Easy    |           | [solution](<markdowns/_2570. Merge Two 2D Arrays by Summing Values.md>)                           | c                            | Jun 10, 2024    |
+| 2582 | [Pass the Pillow](<https://leetcode.com/problems/pass-the-pillow>)                                                                                                 | Easy    | Daily     | [solution](<markdowns/_2582. Pass the Pillow.md>)                                                 | c, cpp, cs, java, js, py     | Jul 06, 2024    |
+| 2619 | [Array Prototype Last](<https://leetcode.com/problems/array-prototype-last>)                                                                                       | Easy    |           | [solution](<markdowns/_2619. Array Prototype Last.md>)                                            | js                           | Jul 10, 2024    |
+| 2620 | [Counter](<https://leetcode.com/problems/counter>)                                                                                                                 | Easy    |           | [solution](<markdowns/_2620. Counter.md>)                                                         | js                           | Jul 09, 2024    |
+| 2621 | [Sleep](<https://leetcode.com/problems/sleep>)                                                                                                                     | Easy    |           | [solution](<markdowns/_2621. Sleep.md>)                                                           | js                           | Jul 09, 2024    |
+| 2626 | [Array Reduce Transformation](<https://leetcode.com/problems/array-reduce-transformation>)                                                                         | Easy    |           | [solution](<markdowns/_2626. Array Reduce Transformation.md>)                                     | js                           | Jul 09, 2024    |
+| 2629 | [Function Composition](<https://leetcode.com/problems/function-composition>)                                                                                       | Easy    |           | [solution](<markdowns/_2629. Function Composition.md>)                                            | js                           | Jul 09, 2024    |
+| 2634 | [Filter Elements from Array](<https://leetcode.com/problems/filter-elements-from-array>)                                                                           | Easy    |           | [solution](<markdowns/_2634. Filter Elements from Array.md>)                                      | js                           | Jul 09, 2024    |
+| 2635 | [Apply Transform Over Each Element in Array](<https://leetcode.com/problems/apply-transform-over-each-element-in-array>)                                           | Easy    |           | [solution](<markdowns/_2635. Apply Transform Over Each Element in Array.md>)                      | js                           | Jul 09, 2024    |
+| 2665 | [Counter II](<https://leetcode.com/problems/counter-ii>)                                                                                                           | Easy    |           | [solution](<markdowns/_2665. Counter II.md>)                                                      | js                           | Jul 09, 2024    |
+| 2666 | [Allow One Function Call](<https://leetcode.com/problems/allow-one-function-call>)                                                                                 | Easy    |           | [solution](<markdowns/_2666. Allow One Function Call.md>)                                         | js                           | Jul 09, 2024    |
+| 2667 | [Create Hello World Function](<https://leetcode.com/problems/create-hello-world-function>)                                                                         | Easy    |           | [solution](<markdowns/_2667. Create Hello World Function.md>)                                     | js                           | Jul 09, 2024    |
+| 2678 | [Number of Senior Citizens](<https://leetcode.com/problems/number-of-senior-citizens>)                                                                             | Easy    |           | [solution](<markdowns/_2678. Number of Senior Citizens.md>)                                       | java                         | May 22, 2024    |
+| 2703 | [Return Length of Arguments Passed](<https://leetcode.com/problems/return-length-of-arguments-passed>)                                                             | Easy    |           | [solution](<markdowns/_2703. Return Length of Arguments Passed.md>)                               | js, ts                       | Jul 09, 2024    |
+| 2704 | [To Be Or Not To Be](<https://leetcode.com/problems/to-be-or-not-to-be>)                                                                                           | Easy    |           | [solution](<markdowns/_2704. To Be Or Not To Be.md>)                                              | js                           | Jul 09, 2024    |
+| 2723 | [Add Two Promises](<https://leetcode.com/problems/add-two-promises>)                                                                                               | Easy    |           | [solution](<markdowns/_2723. Add Two Promises.md>)                                                | js                           | Jul 09, 2024    |
+| 2796 | [Repeat String](<https://leetcode.com/problems/repeat-string>)                                                                                                     | Easy    |           | [solution](<markdowns/_2796. Repeat String.md>)                                                   | js                           | Jul 09, 2024    |
+| 2886 | [Change Data Type](<https://leetcode.com/problems/change-data-type>)                                                                                               | Easy    |           | [solution](<markdowns/_2886. Change Data Type.md>)                                                | py                           | May 30, 2024    |
+| 2894 | [Divisible and Non-divisible Sums Difference](<https://leetcode.com/problems/divisible-and-non-divisible-sums-difference>)                                         | Easy    |           | [solution](<markdowns/_2894. Divisible and Non-divisible Sums Difference.md>)                     | py                           | May 22, 2024    |
+| 2942 | [Find Words Containing Character](<https://leetcode.com/problems/find-words-containing-character>)                                                                 | Easy    |           | [solution](<markdowns/_2942. Find Words Containing Character.md>)                                 | c                            | Jun 06, 2024    |
+| 3074 | [Apple Redistribution into Boxes](<https://leetcode.com/problems/apple-redistribution-into-boxes>)                                                                 | Easy    |           | [solution](<markdowns/_3074. Apple Redistribution into Boxes.md>)                                 | py                           | May 23, 2024    |
+| 3110 | [Score of a String](<https://leetcode.com/problems/score-of-a-string>)                                                                                             | Easy    | Daily     | [solution](<markdowns/_3110. Score of a String.md>)                                               | java, py                     | Jun 01, 2024    |
+| 3136 | [Valid Word](<https://leetcode.com/problems/valid-word>)                                                                                                           | Easy    |           | [solution](<markdowns/_3136. Valid Word.md>)                                                      | c, py                        | Jul 03, 2024    |
+| 3168 | Weekly Contest 400 - q1 - [Minimum Number of Chairs in a Waiting Room](<https://leetcode.com/problems/minimum-number-of-chairs-in-a-waiting-room>)                 | Easy    | Contest   | [solution](<markdowns/_3168. Minimum Number of Chairs in a Waiting Room.md>)                      | py                           | Jul 07, 2024    |
+| 3174 | Biweekly Contest 132 - q1 - [Clear Digits](<https://leetcode.com/problems/clear-digits>)                                                                           | Easy    | Contest   | [solution](<markdowns/_3174. Clear Digits.md>)                                                    | py                           | Jul 07, 2024    |
+| 3178 | Weekly Contest 401 - q1 - [Find the Child Who Has the Ball After K Seconds](<https://leetcode.com/problems/find-the-child-who-has-the-ball-after-k-seconds>)       | Easy    | Contest   | [solution](<markdowns/_3178. Find the Child Who Has the Ball After K Seconds.md>)                 | py                           | Jul 07, 2024    |
+| 3184 | Weekly Contest 402 - q1 - [Count Pairs That Form a Complete Day I](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-i>)                         | Easy    | Contest   | [solution](<markdowns/_3184. Count Pairs That Form a Complete Day I.md>)                          | py                           | Jul 07, 2024    |
+| 3190 | [Find Minimum Operations to Make All Elements Divisible by Three](<https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three>) | Easy    |           | [solution](<markdowns/_3190. Find Minimum Operations to Make All Elements Divisible by Three.md>) | java                         | Jun 22, 2024    |
+| 3194 | Weekly Contest 403 - q1 - [Minimum Average of Smallest and Largest Elements](<https://leetcode.com/problems/minimum-average-of-smallest-and-largest-elements>)     | Easy    | Contest   | [solution](<markdowns/_3194. Minimum Average of Smallest and Largest Elements.md>)                | py                           | Jul 07, 2024    |
+| 3210 | Weekly Contest 405 - q1 - [Find the Encrypted String](<https://leetcode.com/problems/find-the-encrypted-string>)                                                   | Easy    | Contest   | [solution](<markdowns/_3210. Find the Encrypted String.md>)                                       | py                           | Jul 07, 2024    |
+| 3226 | Weekly Contest 407 - q1 - [Number of Bit Changes to Make Two Integers Equal](<https://leetcode.com/problems/number-of-bit-changes-to-make-two-integers-equal>)     | Easy    | Contest   | [solution](<markdowns/_3226. Number of Bit Changes to Make Two Integers Equal.md>)                | py                           | Jul 21, 2024    |
\ No newline at end of file
diff --git a/markdowns/Medium.md b/markdowns/Medium.md
index d0ea512e..20fde98f 100644
--- a/markdowns/Medium.md
+++ b/markdowns/Medium.md
@@ -1,6 +1,299 @@
-# Medium Questions (0)
+# Medium Questions (291)
 
 *[Back to top](<../README.md>)*
 
 ------
 
+|    # | Title                                                                                                                                                                                    | Level   | Cats           | Solution                                                                                                     | Languages                        | Date Complete   |
+|-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:-------------------------------------------------------------------------------------------------------------|:---------------------------------|:----------------|
+|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                                       | Medium  | N150           | [solution](<markdowns/_2. Add Two Numbers.md>)                                                               | java                             | May 22, 2024    |
+|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Medium  | B75, N150      | [solution](<markdowns/_3. Longest Substring Without Repeating Characters.md>)                                | java                             | May 22, 2024    |
+|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                                           | Medium  | B75, N150      | [solution](<markdowns/_5. Longest Palindromic Substring.md>)                                                 | py                               | Jul 05, 2024    |
+|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                                       | Medium  | N150           | [solution](<markdowns/_7. Reverse Integer.md>)                                                               | py                               | May 29, 2024    |
+|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                                       | Medium  |                | [solution](<markdowns/_8. String to Integer (atoi).md>)                                                      | py                               | Jun 10, 2024    |
+|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                                           | Medium  | N150           | [solution](<markdowns/_17. Letter Combinations of a Phone Number.md>)                                        | java                             | Jul 14, 2024    |
+|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                                     | Medium  | B75, N150      | [solution](<markdowns/_19. Remove Nth Node From End of List.md>)                                             | c, java, py                      | Jun 07, 2024    |
+|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                                             | Medium  | N150           | [solution](<markdowns/_22. Generate Parentheses.md>)                                                         | py                               | Jun 13, 2024    |
+|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                               | Medium  |                | [solution](<markdowns/_24. Swap Nodes in Pairs.md>)                                                          | c                                | Jun 07, 2024    |
+|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Medium  | N150           | [solution](<markdowns/_36. Valid Sudoku.md>)                                                                 | py                               | Jun 13, 2024    |
+|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Medium  | B75, N150      | [solution](<markdowns/_39. Combination Sum.md>)                                                              | py                               | Jul 16, 2024    |
+|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Medium  | N150           | [solution](<markdowns/_46. Permutations.md>)                                                                 | py                               | Jun 07, 2024    |
+|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_48. Rotate Image.md>)                                                                 | c, py                            | Jun 15, 2024    |
+|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Medium  | B75, N150      | [solution](<markdowns/_49. Group Anagrams.md>)                                                               | py                               | Jun 13, 2024    |
+|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                                      | Medium  | N150           | [solution](<markdowns/_50. Pow(x, n).md>)                                                                    | c, java, py                      | Jun 23, 2024    |
+|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Medium  | B75, N150      | [solution](<markdowns/_56. Merge Intervals.md>)                                                              | py                               | Jun 19, 2024    |
+|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Medium  | B75, N150      | [solution](<markdowns/_57. Insert Interval.md>)                                                              | py                               | Jun 19, 2024    |
+|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                               | Medium  |                | [solution](<markdowns/_61. Rotate List.md>)                                                                  | py                               | Jun 22, 2024    |
+|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                                           | Medium  |                | [solution](<markdowns/_71. Simplify Path.md>)                                                                | py                               | Jun 11, 2024    |
+|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Medium  | N150           | [solution](<markdowns/_74. Search a 2D Matrix.md>)                                                           | py                               | Jun 15, 2024    |
+|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Medium  | Daily          | [solution](<markdowns/_75. Sort Colors.md>)                                                                  | c, py                            | Jun 12, 2024    |
+|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                                             | Medium  |                | [solution](<markdowns/_77. Combinations.md>)                                                                 | py                               | Jun 07, 2024    |
+|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Medium  | N150           | [solution](<markdowns/_78. Subsets.md>)                                                                      | py                               | Jun 02, 2024    |
+|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Medium  | B75, N150      | [solution](<markdowns/_79. Word Search.md>)                                                                  | py                               | Jun 27, 2024    |
+|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                                           | Medium  |                | [solution](<markdowns/_82. Remove Duplicates from Sorted List II.md>)                                        | py                               | Jul 04, 2024    |
+|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Medium  | N150           | [solution](<markdowns/_90. Subsets II.md>)                                                                   | py                               | Jul 03, 2024    |
+|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                                                               | Medium  | B75, N150      | [solution](<markdowns/_98. Validate Binary Search Tree.md>)                                                  | c                                | Jun 23, 2024    |
+|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                                                   | Medium  | B75, N150      | [solution](<markdowns/_102. Binary Tree Level Order Traversal.md>)                                           | java                             | Jul 04, 2024    |
+|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                                                     | Medium  |                | [solution](<markdowns/_103. Binary Tree Zigzag Level Order Traversal.md>)                                    | py                               | Jul 03, 2024    |
+|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                                             | Medium  |                | [solution](<markdowns/_107. Binary Tree Level Order Traversal II.md>)                                        | java                             | Jul 04, 2024    |
+|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                                               | Medium  |                | [solution](<markdowns/_113. Path Sum II.md>)                                                                 | py                               | Jul 03, 2024    |
+|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                                 | Medium  |                | [solution](<markdowns/_114. Flatten Binary Tree to Linked List.md>)                                          | c, py                            | Jun 11, 2024    |
+|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_128. Longest Consecutive Sequence.md>)                                                | java, py                         | Jun 13, 2024    |
+|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                                                     | Medium  |                | [solution](<markdowns/_129. Sum Root to Leaf Numbers.md>)                                                    | py                               | Jun 07, 2024    |
+|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                                           | Medium  | N150           | [solution](<markdowns/_138. Copy List with Random Pointer.md>)                                               | py                               | Jun 27, 2024    |
+|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                             | Medium  |                | [solution](<markdowns/_142. Linked List Cycle II.md>)                                                        | py                               | Jun 26, 2024    |
+|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_143. Reorder List.md>)                                                                | java, py                         | Jun 11, 2024    |
+|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Medium  | N150           | [solution](<markdowns/_150. Evaluate Reverse Polish Notation.md>)                                            | py                               | Jun 11, 2024    |
+|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                                                                   | Medium  | N150           | [solution](<markdowns/_155. Min Stack.md>)                                                                   | py                               | Jun 16, 2024    |
+|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                                       | Medium  |                | [solution](<markdowns/_165. Compare Version Numbers.md>)                                                     | c, py                            | Jul 02, 2024    |
+|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                                           | Medium  |                | [solution](<markdowns/_166. Fraction to Recurring Decimal.md>)                                               | py                               | May 31, 2024    |
+|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Medium  | N150           | [solution](<markdowns/_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                               | Jun 14, 2024    |
+|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                                                               | Medium  |                | [solution](<markdowns/_173. Binary Search Tree Iterator.md>)                                                 | py                               | Jun 26, 2024    |
+|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                                                                           | Medium  |                | [solution](<markdowns/_176. Second Highest Salary.md>)                                                       | sql                              | May 22, 2024    |
+|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                                                                                 | Medium  |                | [solution](<markdowns/_177. Nth Highest Salary.md>)                                                          | sql                              | May 22, 2024    |
+|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                                                                                   | Medium  |                | [solution](<markdowns/_184. Department Highest Salary.md>)                                                   | sql                              | Jun 07, 2024    |
+|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Medium  |                | [solution](<markdowns/_189. Rotate Array.md>)                                                                | py                               | Jun 02, 2024    |
+|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_198. House Robber.md>)                                                                | py                               | Jul 17, 2024    |
+|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                                               | Medium  | N150           | [solution](<markdowns/_199. Binary Tree Right Side View.md>)                                                 | cpp, java                        | Jul 04, 2024    |
+|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Medium  | B75, N150      | [solution](<markdowns/_200. Number of Islands.md>)                                                           | py                               | Jun 17, 2024    |
+|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                                               | Medium  | B75, N150      | [solution](<markdowns/_208. Implement Trie (Prefix Tree).md>)                                                | py                               | Jun 27, 2024    |
+|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                                 | Medium  | B75, N150      | [solution](<markdowns/_211. Design Add and Search Words Data Structure.md>)                                  | py                               | Jun 27, 2024    |
+|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                                               | Medium  |                | [solution](<markdowns/_227. Basic Calculator II.md>)                                                         | py                               | Jun 10, 2024    |
+|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                                                           | Medium  | B75, N150      | [solution](<markdowns/_230. Kth Smallest Element in a BST.md>)                                               | py                               | Jun 29, 2024    |
+|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                                                         | Medium  | B75, N150      | [solution](<markdowns/_235. Lowest Common Ancestor of a Binary Search Tree.md>)                              | py                               | Jul 04, 2024    |
+|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                                                       | Medium  | B75            | [solution](<markdowns/_236. Lowest Common Ancestor of a Binary Tree.md>)                                     | py                               | Jul 15, 2024    |
+|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Medium  | B75, N150      | [solution](<markdowns/_238. Product of Array Except Self.md>)                                                | py                               | Jun 13, 2024    |
+|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Medium  |                | [solution](<markdowns/_251. Flatten 2D Vector.md>)                                                           | py                               | May 22, 2024    |
+|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Medium  | Daily          | [solution](<markdowns/_260. Single Number III.md>)                                                           | py                               | Jun 08, 2024    |
+|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Medium  | B75, N150      | [solution](<markdowns/_271. Encode and Decode Strings.md>)                                                   | py                               | Jun 13, 2024    |
+|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Medium  | N150           | [solution](<markdowns/_286. Walls and Gates.md>)                                                             | py                               | Jun 15, 2024    |
+|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Medium  | N150           | [solution](<markdowns/_287. Find the Duplicate Number.md>)                                                   | c                                | Jun 26, 2024    |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                             | Medium  |                | [solution](<markdowns/_314. Binary Tree Vertical Order Traversal.md>)                                        | py                               | Jun 12, 2024    |
+|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                             | Medium  |                | [solution](<markdowns/_328. Odd Even Linked List.md>)                                                        | py                               | Jun 22, 2024    |
+|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                                         | Medium  |                | [solution](<markdowns/_339. Nested List Weight Sum.md>)                                                      | c, py                            | Jul 02, 2024    |
+|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Medium  |                | [solution](<markdowns/_341. Flatten Nested List Iterator.md>)                                                | java                             | Jul 02, 2024    |
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Medium  | B75, N150      | [solution](<markdowns/_347. Top K Frequent Elements.md>)                                                     | py                               | Jun 13, 2024    |
+|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Medium  |                | [solution](<markdowns/_348. Design Tic-Tac-Toe.md>)                                                          | py                               | Jul 05, 2024    |
+|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Medium  |                | [solution](<markdowns/_353. Design Snake Game.md>)                                                           | py                               | Jun 28, 2024    |
+|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                                                   | Medium  |                | [solution](<markdowns/_364. Nested List Weight Sum II.md>)                                                   | java, py                         | Jul 02, 2024    |
+|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                                                 | Medium  |                | [solution](<markdowns/_366. Find Leaves of Binary Tree.md>)                                                  | py                               | Jun 12, 2024    |
+|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                             | Medium  |                | [solution](<markdowns/_369. Plus One Linked List.md>)                                                        | c                                | Jul 04, 2024    |
+|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Medium  |                | [solution](<markdowns/_380. Insert Delete GetRandom O(1).md>)                                                | java                             | Jul 06, 2024    |
+|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                                       | Medium  |                | [solution](<markdowns/_382. Linked List Random Node.md>)                                                     | c, java, py                      | Jun 22, 2024    |
+|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Medium  |                | [solution](<markdowns/_384. Shuffle an Array.md>)                                                            | py                               | Jun 29, 2024    |
+|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                                           | Medium  |                | [solution](<markdowns/_394. Decode String.md>)                                                               | py                               | Jun 15, 2024    |
+|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Medium  |                | [solution](<markdowns/_419. Battleships in a Board.md>)                                                      | c, py                            | Jun 24, 2024    |
+|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Medium  | B75, N150      | [solution](<markdowns/_424. Longest Repeating Character Replacement.md>)                                     | py                               | Jul 06, 2024    |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                                       | Medium  |                | [solution](<markdowns/_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)                     | py                               | Jun 12, 2024    |
+|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                                                     | Medium  |                | [solution](<markdowns/_429. N-ary Tree Level Order Traversal.md>)                                            | py                               | Jul 04, 2024    |
+|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                                       | Medium  |                | [solution](<markdowns/_430. Flatten a Multilevel Doubly Linked List.md>)                                     | cpp, java                        | Jun 27, 2024    |
+|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                                                             | Medium  |                | [solution](<markdowns/_437. Path Sum III.md>)                                                                | py                               | Jul 03, 2024    |
+|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                                                             | Medium  |                | [solution](<markdowns/_450. Delete Node in a BST.md>)                                                        | py                               | Jun 29, 2024    |
+|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Medium  |                | [solution](<markdowns/_451. Sort Characters By Frequency.md>)                                                | py                               | Jun 18, 2024    |
+|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Medium  |                | [solution](<markdowns/_475. Heaters.md>)                                                                     | py                               | Jun 07, 2024    |
+|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Medium  |                | [solution](<markdowns/_503. Next Greater Element II.md>)                                                     | py                               | Jul 05, 2024    |
+|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                                               | Medium  |                | [solution](<markdowns/_513. Find Bottom Left Tree Value.md>)                                                 | java                             | Jul 03, 2024    |
+|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Medium  | Daily          | [solution](<markdowns/_523. Continuous Subarray Sum.md>)                                                     | py                               | Jun 08, 2024    |
+|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                                   | Medium  |                | [solution](<markdowns/_535. Encode and Decode TinyURL.md>)                                                   | py                               | Jun 07, 2024    |
+|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Medium  |                | [solution](<markdowns/_540. Single Element in a Sorted Array.md>)                                            | py                               | Jul 05, 2024    |
+|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Medium  |                | [solution](<markdowns/_542. 01 Matrix.md>)                                                                   | py                               | Jun 26, 2024    |
+|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Medium  |                | [solution](<markdowns/_565. Array Nesting.md>)                                                               | py                               | Jul 02, 2024    |
+|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Medium  | N150           | [solution](<markdowns/_567. Permutation in String.md>)                                                       | py                               | Jul 06, 2024    |
+|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Medium  |                | [solution](<markdowns/_611. Valid Triangle Number.md>)                                                       | py                               | May 22, 2024    |
+|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Medium  |                | [solution](<markdowns/_616. Add Bold Tag in String.md>)                                                      | py                               | Jun 28, 2024    |
+|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Medium  |                | [solution](<markdowns/_622. Design Circular Queue.md>)                                                       | py                               | Jul 06, 2024    |
+|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                                         | Medium  | B75, N150      | [solution](<markdowns/_647. Palindromic Substrings.md>)                                                      | py                               | Jul 05, 2024    |
+|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Medium  | Daily          | [solution](<markdowns/_648. Replace Words.md>)                                                               | java, py                         | Jun 07, 2024    |
+|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                                       | Medium  |                | [solution](<markdowns/_651. 4 Keys Keyboard.md>)                                                             | py                               | May 29, 2024    |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Medium  |                | [solution](<markdowns/_654. Maximum Binary Tree.md>)                                                         | py                               | Jun 12, 2024    |
+|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Medium  | Daily          | [solution](<markdowns/_663. Equal Tree Partition.md>)                                                        | py                               | Jun 17, 2024    |
+|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Medium  |                | [solution](<markdowns/_665. Non-decreasing Array.md>)                                                        | java, py                         | Jun 14, 2024    |
+|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Medium  |                | [solution](<markdowns/_666. Path Sum IV.md>)                                                                 | py                               | Jul 03, 2024    |
+|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                                 | Medium  |                | [solution](<markdowns/_676. Implement Magic Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
+|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                                                           | Medium  |                | [solution](<markdowns/_687. Longest Univalue Path.md>)                                                       | py                               | Jul 03, 2024    |
+|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Medium  |                | [solution](<markdowns/_690. Employee Importance.md>)                                                         | java                             | Jul 02, 2024    |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Medium  |                | [solution](<markdowns/_692. Top K Frequent Words.md>)                                                        | py                               | Jun 09, 2024    |
+|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Medium  | N150           | [solution](<markdowns/_695. Max Area of Island.md>)                                                          | c                                | Jun 24, 2024    |
+|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                                 | Medium  |                | [solution](<markdowns/_707. Design Linked List.md>)                                                          | java                             | Jun 22, 2024    |
+|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                                   | Medium  |                | [solution](<markdowns/_708. Insert into a Sorted Circular Linked List.md>)                                   | py                               | Jun 22, 2024    |
+|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Medium  |                | [solution](<markdowns/_713. Subarray Product Less Than K.md>)                                                | py                               | Jul 01, 2024    |
+|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Medium  |                | [solution](<markdowns/_720. Longest Word in Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
+|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                                 | Medium  |                | [solution](<markdowns/_725. Split Linked List in Parts.md>)                                                  | py                               | Jun 22, 2024    |
+|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Medium  |                | [solution](<markdowns/_735. Asteroid Collision.md>)                                                          | py                               | Jul 14, 2024    |
+|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Medium  | N150           | [solution](<markdowns/_739. Daily Temperatures.md>)                                                          | c, java, py                      | Jun 13, 2024    |
+|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Medium  |                | [solution](<markdowns/_758. Bold Words in String.md>)                                                        | py                               | Jun 28, 2024    |
+|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                                                   | Medium  | Weekly Premium | [solution](<markdowns/_776. Split BST.md>)                                                                   | py                               | Jun 29, 2024    |
+|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                                       | Medium  |                | [solution](<markdowns/_784. Letter Case Permutation.md>)                                                     | py                               | Jun 15, 2024    |
+|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                                 | Medium  |                | [solution](<markdowns/_791. Custom Sort String.md>)                                                          | java                             | Jun 24, 2024    |
+|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Medium  |                | [solution](<markdowns/_794. Valid Tic-Tac-Toe State.md>)                                                     | py                               | Jul 05, 2024    |
+|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Medium  |                | [solution](<markdowns/_807. Max Increase to Keep City Skyline.md>)                                           | java                             | Jun 22, 2024    |
+|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Medium  |                | [solution](<markdowns/_817. Linked List Components.md>)                                                      | java                             | Jul 04, 2024    |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Medium  | Daily          | [solution](<markdowns/_826. Most Profit Assigning Work.md>)                                                  | py                               | Jun 18, 2024    |
+|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Medium  | Daily, N150    | [solution](<markdowns/_846. Hand of Straights.md>)                                                           | py                               | Jun 06, 2024    |
+|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Medium  |                | [solution](<markdowns/_848. Shifting Letters.md>)                                                            | py                               | Jun 29, 2024    |
+|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Medium  |                | [solution](<markdowns/_849. Maximize Distance to Closest Person.md>)                                         | py                               | Jun 29, 2024    |
+|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Medium  | N150           | [solution](<markdowns/_853. Car Fleet.md>)                                                                   | py                               | Jun 14, 2024    |
+|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                                             | Medium  |                | [solution](<markdowns/_856. Score of Parentheses.md>)                                                        | py                               | Jun 19, 2024    |
+|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Medium  |                | [solution](<markdowns/_861. Score After Flipping Matrix.md>)                                                 | c, py                            | Jun 10, 2024    |
+|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                                               | Medium  |                | [solution](<markdowns/_863. All Nodes Distance K in Binary Tree.md>)                                         | py                               | Jun 26, 2024    |
+|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Medium  |                | [solution](<markdowns/_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py         | Jul 11, 2024    |
+|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Medium  |                | [solution](<markdowns/_890. Find and Replace Pattern.md>)                                                    | py                               | Jul 03, 2024    |
+|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Medium  |                | [solution](<markdowns/_909. Snakes and Ladders.md>)                                                          | py                               | Jun 12, 2024    |
+|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                                           | Medium  |                | [solution](<markdowns/_919. Complete Binary Tree Inserter.md>)                                               | py                               | Jul 05, 2024    |
+|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                                           | Medium  |                | [solution](<markdowns/_921. Minimum Add to Make Parentheses Valid.md>)                                       | java, py                         | Jun 12, 2024    |
+|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Medium  |                | [solution](<markdowns/_930. Binary Subarrays With Sum.md>)                                                   | py                               | Jun 22, 2024    |
+|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Medium  | Daily          | [solution](<markdowns/_945. Minimum Increment to Make Array Unique.md>)                                      | py                               | Jun 14, 2024    |
+|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Medium  |                | [solution](<markdowns/_946. Validate Stack Sequences.md>)                                                    | c, py                            | Jun 12, 2024    |
+|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Medium  |                | [solution](<markdowns/_950. Reveal Cards In Increasing Order.md>)                                            | py                               | Jun 12, 2024    |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Medium  | N150           | [solution](<markdowns/_973. K Closest Points to Origin.md>)                                                  | py                               | Jun 29, 2024    |
+|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Medium  | Daily          | [solution](<markdowns/_974. Subarray Sums Divisible by K.md>)                                                | java, py                         | Jun 09, 2024    |
+|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Medium  | N150           | [solution](<markdowns/_994. Rotting Oranges.md>)                                                             | py                               | Jun 15, 2024    |
+| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                                                     | Medium  |                | [solution](<markdowns/_1006. Clumsy Factorial.md>)                                                           | c, py                            | Jun 12, 2024    |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Medium  |                | [solution](<markdowns/_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java                     | Jun 27, 2024    |
+| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Medium  |                | [solution](<markdowns/_1019. Next Greater Node In Linked List.md>)                                           | py                               | Jun 22, 2024    |
+| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Medium  |                | [solution](<markdowns/_1020. Number of Enclaves.md>)                                                         | py                               | Jun 26, 2024    |
+| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                                                             | Medium  |                | [solution](<markdowns/_1026. Maximum Difference Between Node and Ancestor.md>)                               | py                               | Jun 23, 2024    |
+| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Medium  | Daily          | [solution](<markdowns/_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                                | Jun 26, 2024    |
+| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Medium  | Daily          | [solution](<markdowns/_1052. Grumpy Bookstore Owner.md>)                                                     | py                               | Jun 24, 2024    |
+| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                                       | Medium  |                | [solution](<markdowns/_1087. Brace Expansion.md>)                                                            | py                               | Jun 15, 2024    |
+| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Medium  | Weekly Premium | [solution](<markdowns/_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                               | Jul 04, 2024    |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Medium  | Daily          | [solution](<markdowns/_1110. Delete Nodes And Return Forest.md>)                                             | py                               | Jul 17, 2024    |
+| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                                                 | Medium  |                | [solution](<markdowns/_1161. Maximum Level Sum of a Binary Tree.md>)                                         | py                               | Jul 17, 2024    |
+| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                                 | Medium  |                | [solution](<markdowns/_1166. Design File System.md>)                                                         | py                               | Jun 28, 2024    |
+| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                                 | Medium  |                | [solution](<markdowns/_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                         | py                               | Jun 15, 2024    |
+| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Medium  | Daily          | [solution](<markdowns/_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                               | Jul 11, 2024    |
+| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                                               | Medium  |                | [solution](<markdowns/_1209. Remove All Adjacent Duplicates in String II.md>)                                | py                               | Jun 19, 2024    |
+| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Medium  |                | [solution](<markdowns/_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                               | May 31, 2024    |
+| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Medium  |                | [solution](<markdowns/_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                               | Jun 28, 2024    |
+| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Medium  |                | [solution](<markdowns/_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                               | Jun 29, 2024    |
+| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Medium  | Daily          | [solution](<markdowns/_1248. Count Number of Nice Subarrays.md>)                                             | py                               | Jun 22, 2024    |
+| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                                     | Medium  |                | [solution](<markdowns/_1249. Minimum Remove to Make Valid Parentheses.md>)                                   | py                               | Jun 10, 2024    |
+| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Medium  |                | [solution](<markdowns/_1254. Number of Closed Islands.md>)                                                   | py                               | Jun 26, 2024    |
+| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                                         | Medium  |                | [solution](<markdowns/_1265. Print Immutable Linked List in Reverse.md>)                                     | c, py                            | Jun 06, 2024    |
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Medium  |                | [solution](<markdowns/_1268. Search Suggestions System.md>)                                                  | py                               | Jun 29, 2024    |
+| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Medium  |                | [solution](<markdowns/_1282. Group the People Given the Group Size They Belong To.md>)                       | py                               | Jun 28, 2024    |
+| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                                                 | Medium  |                | [solution](<markdowns/_1302. Deepest Leaves Sum.md>)                                                         | c, js, py                        | Jun 07, 2024    |
+| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                                       | Medium  |                | [solution](<markdowns/_1305. All Elements in Two Binary Search Trees.md>)                                    | java                             | Jun 24, 2024    |
+| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                                                   | Medium  |                | [solution](<markdowns/_1315. Sum of Nodes with Even-Valued Grandparent.md>)                                  | py                               | Jun 12, 2024    |
+| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                                             | Medium  |                | [solution](<markdowns/_1372. Longest ZigZag Path in a Binary Tree.md>)                                       | py                               | Jul 05, 2024    |
+| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Medium  |                | [solution](<markdowns/_1381. Design a Stack With Increment Operation.md>)                                    | py                               | Jul 06, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Medium  | Daily          | [solution](<markdowns/_1382. Balance a Binary Search Tree.md>)                                               | py                               | Jun 29, 2024    |
+| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Medium  | Daily          | [solution](<markdowns/_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                               | Jun 08, 2024    |
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily          | [solution](<markdowns/_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                             | Jun 24, 2024    |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Medium  | Daily          | [solution](<markdowns/_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                               | Jun 08, 2024    |
+| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                                       | Medium  | N150           | [solution](<markdowns/_1448. Count Good Nodes in Binary Tree.md>)                                            | java                             | Jul 04, 2024    |
+| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                                   | Medium  |                | [solution](<markdowns/_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                                  | py                               | Jul 05, 2024    |
+| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                                           | Medium  |                | [solution](<markdowns/_1461. Check If a String Contains All Binary Codes of Size K.md>)                      | py                               | Jul 12, 2024    |
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Medium  |                | [solution](<markdowns/_1472. Design Browser History.md>)                                                     | py                               | Jul 06, 2024    |
+| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Medium  |                | [solution](<markdowns/_1481. Least Number of Unique Integers after K Removals.md>)                           | py                               | Jun 15, 2024    |
+| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Medium  |                | [solution](<markdowns/_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                               | Jun 19, 2024    |
+| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                                                     | Medium  |                | [solution](<markdowns/_1490. Clone N-ary Tree.md>)                                                           | java, py                         | Jun 02, 2024    |
+| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Medium  | Daily          | [solution](<markdowns/_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py                 | Jul 03, 2024    |
+| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                                                         | Medium  |                | [solution](<markdowns/_1522. Diameter of N-Ary Tree.md>)                                                     | py                               | Jul 03, 2024    |
+| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                                           | Medium  |                | [solution](<markdowns/_1525. Number of Good Ways to Split a String.md>)                                      | py                               | Jun 01, 2024    |
+| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Medium  | Daily          | [solution](<markdowns/_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                               | Jul 18, 2024    |
+| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Medium  |                | [solution](<markdowns/_1535. Find the Winner of an Array Game.md>)                                           | py                               | Jun 08, 2024    |
+| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                                         | Medium  |                | [solution](<markdowns/_1551. Minimum Operations to Make Array Equal.md>)                                     | c, java, js, kt, py, rb, rs      | Jun 13, 2024    |
+| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Medium  | Daily          | [solution](<markdowns/_1552. Magnetic Force Between Two Balls.md>)                                           | py                               | Jun 20, 2024    |
+| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Medium  |                | [solution](<markdowns/_1561. Maximum Number of Coins You Can Get.md>)                                        | py                               | Jun 23, 2024    |
+| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Medium  |                | [solution](<markdowns/_1564. Put Boxes Into the Warehouse I.md>)                                             | py                               | Jun 15, 2024    |
+| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Medium  |                | [solution](<markdowns/_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py                      | Jun 06, 2024    |
+| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Medium  | Weekly Premium | [solution](<markdowns/_1580. Put Boxes Into the Warehouse II.md>)                                            | py                               | Jun 15, 2024    |
+| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                                         | Medium  |                | [solution](<markdowns/_1602. Find Nearest Right Node in Binary Tree.md>)                                     | java, py                         | Jul 03, 2024    |
+| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Medium  | Daily          | [solution](<markdowns/_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                               | Jul 20, 2024    |
+| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                                           | Medium  |                | [solution](<markdowns/_1609. Even Odd Tree.md>)                                                              | py                               | Jul 05, 2024    |
+| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                                                 | Medium  |                | [solution](<markdowns/_1641. Count Sorted Vowel Strings.md>)                                                 | c, cpp, java                     | Jun 24, 2024    |
+| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                                               | Medium  |                | [solution](<markdowns/_1650. Lowest Common Ancestor of a Binary Tree III.md>)                                | py                               | Jun 10, 2024    |
+| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                                 | Medium  |                | [solution](<markdowns/_1657. Determine if Two Strings Are Close.md>)                                         | py                               | Jul 13, 2024    |
+| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                                           | Medium  |                | [solution](<markdowns/_1660. Correct a Binary Tree.md>)                                                      | py                               | Jun 27, 2024    |
+| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                                           | Medium  |                | [solution](<markdowns/_1669. Merge In Between Linked Lists.md>)                                              | c                                | Jun 24, 2024    |
+| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                                                 | Medium  |                | [solution](<markdowns/_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                                 | py                               | Jun 29, 2024    |
+| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                                       | Medium  |                | [solution](<markdowns/_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)                    | c, java                          | Jun 22, 2024    |
+| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Medium  |                | [solution](<markdowns/_1696. Jump Game VI.md>)                                                               | java, py                         | Jul 03, 2024    |
+| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                                   | Medium  |                | [solution](<markdowns/_1698. Number of Distinct Substrings in a String.md>)                                  | java, py                         | Jun 02, 2024    |
+| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Medium  | Daily          | [solution](<markdowns/_1701. Average Waiting Time.md>)                                                       | js, py                           | Jul 09, 2024    |
+| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Medium  | Daily          | [solution](<markdowns/_1717. Maximum Score From Removing Substrings.md>)                                     | py                               | Jul 12, 2024    |
+| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                                       | Medium  |                | [solution](<markdowns/_1721. Swapping Nodes in a Linked List.md>)                                            | c                                | Jun 07, 2024    |
+| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Medium  |                | [solution](<markdowns/_1730. Shortest Path to Get Food.md>)                                                  | py                               | Jun 26, 2024    |
+| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                                         | Medium  | Weekly Premium | [solution](<markdowns/_1740. Find Distance in a Binary Tree.md>)                                             | py                               | Jul 15, 2024    |
+| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Medium  |                | [solution](<markdowns/_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                               | Jun 27, 2024    |
+| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                                           | Medium  |                | [solution](<markdowns/_1759. Count Number of Homogenous Substrings.md>)                                      | c, java                          | Jun 10, 2024    |
+| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Medium  |                | [solution](<markdowns/_1762. Buildings With an Ocean View.md>)                                               | py                               | Jun 10, 2024    |
+| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                                                                                   | Medium  |                | [solution](<markdowns/_1783. Grand Slam Titles.md>)                                                          | sql                              | Jun 07, 2024    |
+| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                                         | Medium  |                | [solution](<markdowns/_1804. Implement Trie II (Prefix Tree).md>)                                            | py                               | Jun 27, 2024    |
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Medium  | Daily          | [solution](<markdowns/_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py             | Jul 08, 2024    |
+| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Medium  |                | [solution](<markdowns/_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py                      | Jun 23, 2024    |
+| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                                         | Medium  | Weekly Premium | [solution](<markdowns/_1836. Remove Duplicates From an Unsorted Linked List.md>)                             | java, py                         | Jul 08, 2024    |
+| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Medium  |                | [solution](<markdowns/_1852. Distinct Numbers in Each Subarray.md>)                                          | java                             | Jun 27, 2024    |
+| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                                                         | Medium  |                | [solution](<markdowns/_1858. Longest Word With All Prefixes.md>)                                             | py                               | Jun 29, 2024    |
+| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Medium  |                | [solution](<markdowns/_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                          | Jun 22, 2024    |
+| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Medium  |                | [solution](<markdowns/_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                               | Jun 23, 2024    |
+| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                                                   | Medium  |                | [solution](<markdowns/_1884. Egg Drop With 2 Eggs and N Floors.md>)                                          | c, java, js                      | Jul 11, 2024    |
+| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Medium  | Weekly Premium | [solution](<markdowns/_1885. Count Pairs in Two Arrays.md>)                                                  | py                               | Jun 08, 2024    |
+| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Medium  |                | [solution](<markdowns/_1905. Count Sub Islands.md>)                                                          | py                               | Jun 24, 2024    |
+| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Medium  | Weekly Premium | [solution](<markdowns/_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                         | Jun 01, 2024    |
+| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                                                       | Medium  |                | [solution](<markdowns/_1973. Count Nodes Equal to Sum of Descendants.md>)                                    | c                                | Jun 23, 2024    |
+| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Medium  |                | [solution](<markdowns/_1980. Find Unique Binary String.md>)                                                  | c, py                            | Jun 27, 2024    |
+| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Medium  |                | [solution](<markdowns/_1992. Find All Groups of Farmland.md>)                                                | java, py                         | Jun 24, 2024    |
+| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Medium  | N150           | [solution](<markdowns/_2013. Detect Squares.md>)                                                             | py                               | Jun 28, 2024    |
+| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                                           | Medium  |                | [solution](<markdowns/_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                      | py                               | Jul 04, 2024    |
+| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Medium  | Daily          | [solution](<markdowns/_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                    | Jul 05, 2024    |
+| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                                 | Medium  | Weekly Premium | [solution](<markdowns/_2083. Substrings That Begin and End With the Same Letter.md>)                         | c, py                            | Jun 10, 2024    |
+| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                               | Medium  |                | [solution](<markdowns/_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                        | java                             | Jul 01, 2024    |
+| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                                       | Medium  |                | [solution](<markdowns/_2095. Delete the Middle Node of a Linked List.md>)                                    | c, java                          | Jun 07, 2024    |
+| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Medium  | Daily          | [solution](<markdowns/_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                               | Jul 16, 2024    |
+| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                                   | Medium  |                | [solution](<markdowns/_2130. Maximum Twin Sum of a Linked List.md>)                                          | py                               | Jun 21, 2024    |
+| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Medium  |                | [solution](<markdowns/_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                            | Jun 10, 2024    |
+| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                                       | Medium  |                | [solution](<markdowns/_2165. Smallest Value of the Rearranged Number.md>)                                    | py                               | Jul 01, 2024    |
+| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Medium  | Daily          | [solution](<markdowns/_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py                 | Jul 04, 2024    |
+| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Medium  | Daily          | [solution](<markdowns/_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                         | Jun 29, 2024    |
+| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Medium  | Daily          | [solution](<markdowns/_2196. Create Binary Tree From Descriptions.md>)                                       | py                               | Jul 15, 2024    |
+| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                                 | Medium  |                | [solution](<markdowns/_2211. Count Collisions on a Road.md>)                                                 | py                               | Jul 14, 2024    |
+| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Medium  |                | [solution](<markdowns/_2221. Find Triangular Sum of an Array.md>)                                            | c, java                          | Jun 27, 2024    |
+| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Medium  |                | [solution](<markdowns/_2225. Find Players With Zero or One Losses.md>)                                       | java                             | Jun 24, 2024    |
+| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                                                       | Medium  |                | [solution](<markdowns/_2265. Count Nodes Equal to Average of Subtree.md>)                                    | js, py                           | Jun 07, 2024    |
+| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                             | Medium  |                | [solution](<markdowns/_2268. Minimum Number of Keypresses.md>)                                               | py                               | Jul 05, 2024    |
+| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Medium  | Daily          | [solution](<markdowns/_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py                 | Jun 28, 2024    |
+| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Medium  |                | [solution](<markdowns/_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py                 | Jun 24, 2024    |
+| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Medium  |                | [solution](<markdowns/_2352. Equal Row and Column Pairs.md>)                                                 | py                               | Jun 27, 2024    |
+| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Medium  |                | [solution](<markdowns/_2365. Task Scheduler II.md>)                                                          | py                               | Jun 29, 2024    |
+| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                                             | Medium  |                | [solution](<markdowns/_2374. Node With Highest Edge Score.md>)                                               | py                               | Jun 18, 2024    |
+| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                                           | Medium  |                | [solution](<markdowns/_2385. Amount of Time for Binary Tree to Be Infected.md>)                              | py                               | Jun 26, 2024    |
+| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                                             | Medium  |                | [solution](<markdowns/_2390. Removing Stars From a String.md>)                                               | java, py                         | Jun 02, 2024    |
+| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                                               | Medium  |                | [solution](<markdowns/_2396. Strictly Palindromic Number.md>)                                                | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
+| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                               | Medium  |                | [solution](<markdowns/_2405. Optimal Partition of String.md>)                                                | py                               | Jun 23, 2024    |
+| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                                                   | Medium  |                | [solution](<markdowns/_2415. Reverse Odd Levels of Binary Tree.md>)                                          | py                               | Jun 23, 2024    |
+| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Medium  |                | [solution](<markdowns/_2433. Find The Original Array of Prefix Xor.md>)                                      | py                               | May 31, 2024    |
+| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Medium  |                | [solution](<markdowns/_2473. Minimum Cost to Buy Apples.md>)                                                 | py                               | Jun 29, 2024    |
+| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Medium  |                | [solution](<markdowns/_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                               | Jun 07, 2024    |
+| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Medium  | Daily          | [solution](<markdowns/_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                      | Jun 03, 2024    |
+| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                                           | Medium  |                | [solution](<markdowns/_2487. Remove Nodes From Linked List.md>)                                              | py                               | Jun 12, 2024    |
+| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Medium  |                | [solution](<markdowns/_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                         | Jun 24, 2024    |
+| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Medium  |                | [solution](<markdowns/_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                               | Jun 07, 2024    |
+| 2623 | [Memoize](<https://leetcode.com/problems/memoize>)                                                                                                                                       | Medium  |                | [solution](<markdowns/_2623. Memoize.md>)                                                                    | js                               | Jul 09, 2024    |
+| 2624 | [Snail Traversal](<https://leetcode.com/problems/snail-traversal>)                                                                                                                       | Medium  |                | [solution](<markdowns/_2624. Snail Traversal.md>)                                                            | js                               | Jul 09, 2024    |
+| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                                                   | Medium  |                | [solution](<markdowns/_2671. Frequency Tracker.md>)                                                          | py                               | Jun 28, 2024    |
+| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Medium  |                | [solution](<markdowns/_2679. Sum in a Matrix.md>)                                                            | java                             | May 22, 2024    |
+| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                               | Medium  |                | [solution](<markdowns/_2734. Lexicographically Smallest String After Substring Operation.md>)                | py                               | Jun 29, 2024    |
+| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Medium  | Weekly Premium | [solution](<markdowns/_2743. Count Substrings Without Repeating Character.md>)                               | java, py                         | Jun 22, 2024    |
+| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                                         | Medium  |                | [solution](<markdowns/_2807. Insert Greatest Common Divisors in Linked List.md>)                             | py                               | Jun 13, 2024    |
+| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                             | Medium  |                | [solution](<markdowns/_2816. Double a Number Represented as a Linked List.md>)                               | c                                | Jul 04, 2024    |
+| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Medium  |                | [solution](<markdowns/_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                         | Jun 12, 2024    |
+| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Medium  |                | [solution](<markdowns/_3043. Find the Length of the Longest Common Prefix.md>)                               | py                               | Jun 28, 2024    |
+| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                                 | Medium  |                | [solution](<markdowns/_3064. Guess the Number Using Bitwise Questions I.md>)                                 | c, py                            | Jun 06, 2024    |
+| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)                 | Medium  |                | [solution](<markdowns/_3106. Lexicographically Smallest String After Operations With Constraint.md>)         | py                               | Jun 29, 2024    |
+| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                                       | Medium  |                | [solution](<markdowns/_3157. Find the Level of Tree with Minimum Sum.md>)                                    | py                               | Jul 05, 2024    |
+| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Medium  | Contest        | [solution](<markdowns/_3169. Count Days Without Meetings.md>)                                                | py                               | Jul 07, 2024    |
+| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Medium  | Contest        | [solution](<markdowns/_3175. Find The First Player to win K Games in a Row.md>)                              | py                               | Jul 07, 2024    |
+| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Medium  | Contest        | [solution](<markdowns/_3179. Find the N-th Value After K Seconds.md>)                                        | py                               | Jul 07, 2024    |
+| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Medium  | Contest        | [solution](<markdowns/_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                            | Jul 07, 2024    |
+| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Medium  | Contest        | [solution](<markdowns/_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                               | Jul 07, 2024    |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Medium  | Contest        | [solution](<markdowns/_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                               | Jul 07, 2024    |
+| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Medium  |                | [solution](<markdowns/_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                             | Jun 22, 2024    |
+| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Medium  |                | [solution](<markdowns/_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                             | Jun 22, 2024    |
+| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Medium  | Contest        | [solution](<markdowns/_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                               | Jul 07, 2024    |
+| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Medium  | Contest        | [solution](<markdowns/_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                               | Jul 07, 2024    |
+| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)                               | Medium  | Contest        | [solution](<markdowns/_3211. Generate Binary Strings Without Adjacent Zeros.md>)                             | js, py                           | Jul 07, 2024    |
+| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Medium  | Contest        | [solution](<markdowns/_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                               | Jul 07, 2024    |
+| 3227 | Weekly Contest 407 - q2 - [Vowels Game in a String](<https://leetcode.com/problems/vowels-game-in-a-string>)                                                                             | Medium  | Contest        | [solution](<markdowns/_3227. Vowels Game in a String.md>)                                                    | py                               | Jul 21, 2024    |
+| 3228 | Weekly Contest 407 - q3 - [Maximum Number of Operations to Move Ones to the End](<https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end>)                   | Medium  | Contest        | [solution](<markdowns/_3228. Maximum Number of Operations to Move Ones to the End.md>)                       | py                               | Jul 21, 2024    |
\ No newline at end of file
diff --git a/markdowns/Questions_By_Code_Length.md b/markdowns/Questions_By_Code_Length.md
index 2cba5313..298699de 100644
--- a/markdowns/Questions_By_Code_Length.md
+++ b/markdowns/Questions_By_Code_Length.md
@@ -7,442 +7,442 @@ Calculations are based on the code files's byte sizes.
 |    # | Title                                                                                                                                                                                    | Level   | Cats           | Solution                                                                                           | Languages                        | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:---------------------------------------------------------------------------------------------------|:---------------------------------|:----------------|
 | 2258 | [Escape the Spreading Fire](<https://leetcode.com/problems/escape-the-spreading-fire>)                                                                                                   | Hard    |                | [solution](<_2258. Escape the Spreading Fire.md>)                                                  | py                               | Jun 15, 2024    |
-| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Easy    | Weekly Premium | [solution](<_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                         | Jun 01, 2024    |
-| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Easy    | Daily          | [solution](<_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py                 | Jul 03, 2024    |
+| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Medium  | Weekly Premium | [solution](<_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                         | Jun 01, 2024    |
+| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Medium  | Daily          | [solution](<_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py                 | Jul 03, 2024    |
 |  726 | [Number of Atoms](<https://leetcode.com/problems/number-of-atoms>)                                                                                                                       | Hard    | Daily          | [solution](<_726. Number of Atoms.md>)                                                             | py                               | Jul 14, 2024    |
-| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Easy    | Daily          | [solution](<_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                    | Jul 05, 2024    |
+| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Medium  | Daily          | [solution](<_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                    | Jul 05, 2024    |
 | 1284 | [Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](<https://leetcode.com/problems/minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix>)                       | Hard    |                | [solution](<_1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix.md>)            | py                               | Jun 09, 2024    |
-| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Easy    |                | [solution](<_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py                      | Jun 06, 2024    |
-| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Easy    | Daily          | [solution](<_1717. Maximum Score From Removing Substrings.md>)                                     | py                               | Jul 12, 2024    |
+| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Medium  |                | [solution](<_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py                      | Jun 06, 2024    |
+| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Medium  | Daily          | [solution](<_1717. Maximum Score From Removing Substrings.md>)                                     | py                               | Jul 12, 2024    |
 |  212 | [Word Search II](<https://leetcode.com/problems/word-search-ii>)                                                                                                                         | Hard    | B75, N150      | [solution](<_212. Word Search II.md>)                                                              | py                               | Jun 27, 2024    |
-|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                                                   | Easy    |                | [solution](<_364. Nested List Weight Sum II.md>)                                                   | java, py                         | Jul 02, 2024    |
+|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                                                   | Medium  |                | [solution](<_364. Nested List Weight Sum II.md>)                                                   | java, py                         | Jul 02, 2024    |
 | 1579 | [Remove Max Number of Edges to Keep Graph Fully Traversable](<https://leetcode.com/problems/remove-max-number-of-edges-to-keep-graph-fully-traversable>)                                 | Hard    | Daily          | [solution](<_1579. Remove Max Number of Edges to Keep Graph Fully Traversable.md>)                 | py                               | Jun 30, 2024    |
-|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                                       | Easy    |                | [solution](<_165. Compare Version Numbers.md>)                                                     | c, py                            | Jul 02, 2024    |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Easy    |                | [solution](<_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java                     | Jun 27, 2024    |
+|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                                       | Medium  |                | [solution](<_165. Compare Version Numbers.md>)                                                     | c, py                            | Jul 02, 2024    |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Medium  |                | [solution](<_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java                     | Jun 27, 2024    |
 | 2570 | [Merge Two 2D Arrays by Summing Values](<https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values>)                                                                           | Easy    |                | [solution](<_2570. Merge Two 2D Arrays by Summing Values.md>)                                      | c                                | Jun 10, 2024    |
-|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                                         | Easy    |                | [solution](<_339. Nested List Weight Sum.md>)                                                      | c, py                            | Jul 02, 2024    |
-|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                                 | Easy    |                | [solution](<_707. Design Linked List.md>)                                                          | java                             | Jun 22, 2024    |
-| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                                                 | Easy    |                | [solution](<_1302. Deepest Leaves Sum.md>)                                                         | c, js, py                        | Jun 07, 2024    |
-|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                                               | Easy    |                | [solution](<_227. Basic Calculator II.md>)                                                         | py                               | Jun 10, 2024    |
-|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Easy    | Daily          | [solution](<_648. Replace Words.md>)                                                               | java, py                         | Jun 07, 2024    |
-|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Easy    | Daily          | [solution](<_523. Continuous Subarray Sum.md>)                                                     | py                               | Jun 08, 2024    |
-| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Easy    |                | [solution](<_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                               | Jun 19, 2024    |
+|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                                         | Medium  |                | [solution](<_339. Nested List Weight Sum.md>)                                                      | c, py                            | Jul 02, 2024    |
+|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                                 | Medium  |                | [solution](<_707. Design Linked List.md>)                                                          | java                             | Jun 22, 2024    |
+| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                                                 | Medium  |                | [solution](<_1302. Deepest Leaves Sum.md>)                                                         | c, js, py                        | Jun 07, 2024    |
+|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                                               | Medium  |                | [solution](<_227. Basic Calculator II.md>)                                                         | py                               | Jun 10, 2024    |
+|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Medium  | Daily          | [solution](<_648. Replace Words.md>)                                                               | java, py                         | Jun 07, 2024    |
+|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Medium  | Daily          | [solution](<_523. Continuous Subarray Sum.md>)                                                     | py                               | Jun 08, 2024    |
+| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Medium  |                | [solution](<_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                               | Jun 19, 2024    |
 |  543 | [Diameter of Binary Tree](<https://leetcode.com/problems/diameter-of-binary-tree>)                                                                                                       | Easy    | N150           | [solution](<_543. Diameter of Binary Tree.md>)                                                     | c, java, py                      | Jun 03, 2024    |
-|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Easy    | B75, N150      | [solution](<_424. Longest Repeating Character Replacement.md>)                                     | py                               | Jul 06, 2024    |
-|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Easy    | N150           | [solution](<_286. Walls and Gates.md>)                                                             | py                               | Jun 15, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Easy    | Daily          | [solution](<_1382. Balance a Binary Search Tree.md>)                                               | py                               | Jun 29, 2024    |
-|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Easy    |                | [solution](<_861. Score After Flipping Matrix.md>)                                                 | c, py                            | Jun 10, 2024    |
-|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Easy    |                | [solution](<_341. Flatten Nested List Iterator.md>)                                                | java                             | Jul 02, 2024    |
+|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Medium  | B75, N150      | [solution](<_424. Longest Repeating Character Replacement.md>)                                     | py                               | Jul 06, 2024    |
+|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Medium  | N150           | [solution](<_286. Walls and Gates.md>)                                                             | py                               | Jun 15, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Medium  | Daily          | [solution](<_1382. Balance a Binary Search Tree.md>)                                               | py                               | Jun 29, 2024    |
+|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Medium  |                | [solution](<_861. Score After Flipping Matrix.md>)                                                 | c, py                            | Jun 10, 2024    |
+|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Medium  |                | [solution](<_341. Flatten Nested List Iterator.md>)                                                | java                             | Jul 02, 2024    |
 |  431 | [Encode N-ary Tree to Binary Tree](<https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree>)                                                                                     | Hard    |                | [solution](<_431. Encode N-ary Tree to Binary Tree.md>)                                            | java, py                         | Jun 28, 2024    |
 |  224 | [Basic Calculator](<https://leetcode.com/problems/basic-calculator>)                                                                                                                     | Hard    |                | [solution](<_224. Basic Calculator.md>)                                                            | py                               | Jun 10, 2024    |
-|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                                     | Easy    | B75, N150      | [solution](<_19. Remove Nth Node From End of List.md>)                                             | c, java, py                      | Jun 07, 2024    |
-|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                                 | Easy    |                | [solution](<_114. Flatten Binary Tree to Linked List.md>)                                          | c, py                            | Jun 11, 2024    |
+|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                                     | Medium  | B75, N150      | [solution](<_19. Remove Nth Node From End of List.md>)                                             | c, java, py                      | Jun 07, 2024    |
+|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                                 | Medium  |                | [solution](<_114. Flatten Binary Tree to Linked List.md>)                                          | c, py                            | Jun 11, 2024    |
 |  987 | [Vertical Order Traversal of a Binary Tree](<https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree>)                                                                   | Hard    |                | [solution](<_987. Vertical Order Traversal of a Binary Tree.md>)                                   | py                               | Jun 12, 2024    |
-|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Easy    | N150           | [solution](<_994. Rotting Oranges.md>)                                                             | py                               | Jun 15, 2024    |
-|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                                       | Easy    |                | [solution](<_382. Linked List Random Node.md>)                                                     | c, java, py                      | Jun 22, 2024    |
-| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Easy    | Daily          | [solution](<_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py                 | Jul 04, 2024    |
+|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Medium  | N150           | [solution](<_994. Rotting Oranges.md>)                                                             | py                               | Jun 15, 2024    |
+|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                                       | Medium  |                | [solution](<_382. Linked List Random Node.md>)                                                     | c, java, py                      | Jun 22, 2024    |
+| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Medium  | Daily          | [solution](<_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py                 | Jul 04, 2024    |
 |  895 | [Maximum Frequency Stack](<https://leetcode.com/problems/maximum-frequency-stack>)                                                                                                       | Hard    |                | [solution](<_895. Maximum Frequency Stack.md>)                                                     | java, py                         | Jul 11, 2024    |
-|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Easy    | N150           | [solution](<_739. Daily Temperatures.md>)                                                          | c, java, py                      | Jun 13, 2024    |
-| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Easy    | Daily          | [solution](<_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                         | Jun 29, 2024    |
-| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                                               | Easy    |                | [solution](<_1650. Lowest Common Ancestor of a Binary Tree III.md>)                                | py                               | Jun 10, 2024    |
-| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                                                       | Easy    |                | [solution](<_2265. Count Nodes Equal to Average of Subtree.md>)                                    | js, py                           | Jun 07, 2024    |
+|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Medium  | N150           | [solution](<_739. Daily Temperatures.md>)                                                          | c, java, py                      | Jun 13, 2024    |
+| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Medium  | Daily          | [solution](<_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                         | Jun 29, 2024    |
+| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                                               | Medium  |                | [solution](<_1650. Lowest Common Ancestor of a Binary Tree III.md>)                                | py                               | Jun 10, 2024    |
+| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                                                       | Medium  |                | [solution](<_2265. Count Nodes Equal to Average of Subtree.md>)                                    | js, py                           | Jun 07, 2024    |
 |   84 | [Largest Rectangle in Histogram](<https://leetcode.com/problems/largest-rectangle-in-histogram>)                                                                                         | Hard    | N150           | [solution](<_84. Largest Rectangle in Histogram.md>)                                               | py                               | Jun 11, 2024    |
-| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Easy    | Contest        | [solution](<_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                            | Jul 07, 2024    |
-| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                                           | Easy    |                | [solution](<_1660. Correct a Binary Tree.md>)                                                      | py                               | Jun 27, 2024    |
-| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                                         | Easy    | Weekly Premium | [solution](<_1740. Find Distance in a Binary Tree.md>)                                             | py                               | Jul 15, 2024    |
+| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Medium  | Contest        | [solution](<_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                            | Jul 07, 2024    |
+| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                                           | Medium  |                | [solution](<_1660. Correct a Binary Tree.md>)                                                      | py                               | Jun 27, 2024    |
+| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                                         | Medium  | Weekly Premium | [solution](<_1740. Find Distance in a Binary Tree.md>)                                             | py                               | Jul 15, 2024    |
 |  273 | [Integer to English Words](<https://leetcode.com/problems/integer-to-english-words>)                                                                                                     | Hard    |                | [solution](<_273. Integer to English Words.md>)                                                    | py                               | Jun 11, 2024    |
 | 2206 | [Divide Array Into Equal Pairs](<https://leetcode.com/problems/divide-array-into-equal-pairs>)                                                                                           | Easy    |                | [solution](<_2206. Divide Array Into Equal Pairs.md>)                                              | c, py                            | Jun 08, 2024    |
-| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                                       | Easy    |                | [solution](<_1087. Brace Expansion.md>)                                                            | py                               | Jun 15, 2024    |
-| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                                             | Easy    |                | [solution](<_2390. Removing Stars From a String.md>)                                               | java, py                         | Jun 02, 2024    |
-| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Easy    |                | [solution](<_1992. Find All Groups of Farmland.md>)                                                | java, py                         | Jun 24, 2024    |
-|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                             | Easy    |                | [solution](<_142. Linked List Cycle II.md>)                                                        | py                               | Jun 26, 2024    |
-| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Easy    | Daily          | [solution](<_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py                 | Jun 28, 2024    |
-| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                                       | Easy    |                | [solution](<_1305. All Elements in Two Binary Search Trees.md>)                                    | java                             | Jun 24, 2024    |
-|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                             | Easy    | B75, N150      | [solution](<_143. Reorder List.md>)                                                                | java, py                         | Jun 11, 2024    |
-| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Easy    | Daily          | [solution](<_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                      | Jun 03, 2024    |
-| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                                                   | Easy    |                | [solution](<_2415. Reverse Odd Levels of Binary Tree.md>)                                          | py                               | Jun 23, 2024    |
-| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                                         | Easy    |                | [solution](<_1602. Find Nearest Right Node in Binary Tree.md>)                                     | java, py                         | Jul 03, 2024    |
+| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                                       | Medium  |                | [solution](<_1087. Brace Expansion.md>)                                                            | py                               | Jun 15, 2024    |
+| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                                             | Medium  |                | [solution](<_2390. Removing Stars From a String.md>)                                               | java, py                         | Jun 02, 2024    |
+| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Medium  |                | [solution](<_1992. Find All Groups of Farmland.md>)                                                | java, py                         | Jun 24, 2024    |
+|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                             | Medium  |                | [solution](<_142. Linked List Cycle II.md>)                                                        | py                               | Jun 26, 2024    |
+| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Medium  | Daily          | [solution](<_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py                 | Jun 28, 2024    |
+| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                                       | Medium  |                | [solution](<_1305. All Elements in Two Binary Search Trees.md>)                                    | java                             | Jun 24, 2024    |
+|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                             | Medium  | B75, N150      | [solution](<_143. Reorder List.md>)                                                                | java, py                         | Jun 11, 2024    |
+| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Medium  | Daily          | [solution](<_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                      | Jun 03, 2024    |
+| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                                                   | Medium  |                | [solution](<_2415. Reverse Odd Levels of Binary Tree.md>)                                          | py                               | Jun 23, 2024    |
+| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                                         | Medium  |                | [solution](<_1602. Find Nearest Right Node in Binary Tree.md>)                                     | java, py                         | Jul 03, 2024    |
 | 1252 | [Cells with Odd Values in a Matrix](<https://leetcode.com/problems/cells-with-odd-values-in-a-matrix>)                                                                                   | Easy    |                | [solution](<_1252. Cells with Odd Values in a Matrix.md>)                                          | c                                | Jun 04, 2024    |
-| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Easy    |                | [solution](<_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                               | Jun 27, 2024    |
-|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Easy    | Daily, N150    | [solution](<_846. Hand of Straights.md>)                                                           | py                               | Jun 06, 2024    |
-|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Easy    | Daily          | [solution](<_75. Sort Colors.md>)                                                                  | c, py                            | Jun 12, 2024    |
+| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Medium  |                | [solution](<_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                               | Jun 27, 2024    |
+|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Medium  | Daily, N150    | [solution](<_846. Hand of Straights.md>)                                                           | py                               | Jun 06, 2024    |
+|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Medium  | Daily          | [solution](<_75. Sort Colors.md>)                                                                  | c, py                            | Jun 12, 2024    |
 | 3045 | [Count Prefix and Suffix Pairs II](<https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii>)                                                                                     | Hard    |                | [solution](<_3045. Count Prefix and Suffix Pairs II.md>)                                           | py                               | Jun 29, 2024    |
 | 3213 | Weekly Contest 405 - q4 - [Construct String with Minimum Cost](<https://leetcode.com/problems/construct-string-with-minimum-cost>)                                                       | Hard    | Contest        | [solution](<_3213. Construct String with Minimum Cost.md>)                                         | py                               | Jul 07, 2024    |
-|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Easy    |                | [solution](<_348. Design Tic-Tac-Toe.md>)                                                          | py                               | Jul 05, 2024    |
+|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Medium  |                | [solution](<_348. Design Tic-Tac-Toe.md>)                                                          | py                               | Jul 05, 2024    |
 |  572 | [Subtree of Another Tree](<https://leetcode.com/problems/subtree-of-another-tree>)                                                                                                       | Easy    | B75, N150      | [solution](<_572. Subtree of Another Tree.md>)                                                     | py                               | Jun 03, 2024    |
-| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                                           | Easy    |                | [solution](<_1609. Even Odd Tree.md>)                                                              | py                               | Jul 05, 2024    |
-|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                                                             | Easy    |                | [solution](<_437. Path Sum III.md>)                                                                | py                               | Jul 03, 2024    |
-|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Easy    |                | [solution](<_616. Add Bold Tag in String.md>)                                                      | py                               | Jun 28, 2024    |
-|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Easy    |                | [solution](<_758. Bold Words in String.md>)                                                        | py                               | Jun 28, 2024    |
-|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                                       | Easy    | N150           | [solution](<_2. Add Two Numbers.md>)                                                               | java                             | May 22, 2024    |
-|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                                       | Easy    |                | [solution](<_430. Flatten a Multilevel Doubly Linked List.md>)                                     | cpp, java                        | Jun 27, 2024    |
+| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                                           | Medium  |                | [solution](<_1609. Even Odd Tree.md>)                                                              | py                               | Jul 05, 2024    |
+|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                                                             | Medium  |                | [solution](<_437. Path Sum III.md>)                                                                | py                               | Jul 03, 2024    |
+|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Medium  |                | [solution](<_616. Add Bold Tag in String.md>)                                                      | py                               | Jun 28, 2024    |
+|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Medium  |                | [solution](<_758. Bold Words in String.md>)                                                        | py                               | Jun 28, 2024    |
+|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                                       | Medium  | N150           | [solution](<_2. Add Two Numbers.md>)                                                               | java                             | May 22, 2024    |
+|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                                       | Medium  |                | [solution](<_430. Flatten a Multilevel Doubly Linked List.md>)                                     | cpp, java                        | Jun 27, 2024    |
 |  239 | [Sliding Window Maximum](<https://leetcode.com/problems/sliding-window-maximum>)                                                                                                         | Hard    | N150           | [solution](<_239. Sliding Window Maximum.md>)                                                      | py                               | Jun 04, 2024    |
-|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                                                     | Easy    |                | [solution](<_103. Binary Tree Zigzag Level Order Traversal.md>)                                    | py                               | Jul 03, 2024    |
+|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                                                     | Medium  |                | [solution](<_103. Binary Tree Zigzag Level Order Traversal.md>)                                    | py                               | Jul 03, 2024    |
 |  645 | [Set Mismatch](<https://leetcode.com/problems/set-mismatch>)                                                                                                                             | Easy    |                | [solution](<_645. Set Mismatch.md>)                                                                | java, py                         | Jun 01, 2024    |
-|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                                               | Easy    | N150           | [solution](<_199. Binary Tree Right Side View.md>)                                                 | cpp, java                        | Jul 04, 2024    |
+|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                                               | Medium  | N150           | [solution](<_199. Binary Tree Right Side View.md>)                                                 | cpp, java                        | Jul 04, 2024    |
 |  412 | [Fizz Buzz](<https://leetcode.com/problems/fizz-buzz>)                                                                                                                                   | Easy    |                | [solution](<_412. Fizz Buzz.md>)                                                                   | java, py                         | Jun 02, 2024    |
-| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Easy    |                | [solution](<_1696. Jump Game VI.md>)                                                               | java, py                         | Jul 03, 2024    |
+| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Medium  |                | [solution](<_1696. Jump Game VI.md>)                                                               | java, py                         | Jul 03, 2024    |
 | 2037 | [Minimum Number of Moves to Seat Everyone](<https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone>)                                                                     | Easy    | Daily          | [solution](<_2037. Minimum Number of Moves to Seat Everyone.md>)                                   | c, py                            | Jun 03, 2024    |
 |  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                                           | Easy    | Daily          | [solution](<_350. Intersection of Two Arrays II.md>)                                               | java, py                         | Jul 02, 2024    |
 |   66 | [Plus One](<https://leetcode.com/problems/plus-one>)                                                                                                                                     | Easy    | N150           | [solution](<_66. Plus One.md>)                                                                     | c                                | Jun 03, 2024    |
-|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Easy    |                | [solution](<_611. Valid Triangle Number.md>)                                                       | py                               | May 22, 2024    |
+|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Medium  |                | [solution](<_611. Valid Triangle Number.md>)                                                       | py                               | May 22, 2024    |
 | 3229 | Weekly Contest 407 - q4 - [Minimum Operations to Make Array Equal to Target](<https://leetcode.com/problems/minimum-operations-to-make-array-equal-to-target>)                           | Hard    | Contest        | [solution](<_3229. Minimum Operations to Make Array Equal to Target.md>)                           | py                               | Jul 21, 2024    |
 |  381 | [Insert Delete GetRandom O(1) - Duplicates allowed](<https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed>)                                                       | Hard    |                | [solution](<_381. Insert Delete GetRandom O(1) - Duplicates allowed.md>)                           | java                             | Jul 06, 2024    |
-|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Easy    |                | [solution](<_419. Battleships in a Board.md>)                                                      | c, py                            | Jun 24, 2024    |
-|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Easy    |                | [solution](<_353. Design Snake Game.md>)                                                           | py                               | Jun 28, 2024    |
+|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Medium  |                | [solution](<_419. Battleships in a Board.md>)                                                      | c, py                            | Jun 24, 2024    |
+|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Medium  |                | [solution](<_353. Design Snake Game.md>)                                                           | py                               | Jun 28, 2024    |
 |  111 | [Minimum Depth of Binary Tree](<https://leetcode.com/problems/minimum-depth-of-binary-tree>)                                                                                             | Easy    |                | [solution](<_111. Minimum Depth of Binary Tree.md>)                                                | c, java                          | Jun 07, 2024    |
-| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                                             | Easy    |                | [solution](<_1372. Longest ZigZag Path in a Binary Tree.md>)                                       | py                               | Jul 05, 2024    |
-| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                                                 | Easy    |                | [solution](<_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                                 | py                               | Jun 29, 2024    |
-| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                                                     | Easy    |                | [solution](<_1006. Clumsy Factorial.md>)                                                           | c, py                            | Jun 12, 2024    |
-|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Easy    |                | [solution](<_665. Non-decreasing Array.md>)                                                        | java, py                         | Jun 14, 2024    |
+| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                                             | Medium  |                | [solution](<_1372. Longest ZigZag Path in a Binary Tree.md>)                                       | py                               | Jul 05, 2024    |
+| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                                                 | Medium  |                | [solution](<_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                                 | py                               | Jun 29, 2024    |
+| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                                                     | Medium  |                | [solution](<_1006. Clumsy Factorial.md>)                                                           | c, py                            | Jun 12, 2024    |
+|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Medium  |                | [solution](<_665. Non-decreasing Array.md>)                                                        | java, py                         | Jun 14, 2024    |
 |  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                                                                       | Easy    | N150           | [solution](<_703. Kth Largest Element in a Stream.md>)                                             | py                               | Jul 05, 2024    |
 |  700 | [Search in a Binary Search Tree](<https://leetcode.com/problems/search-in-a-binary-search-tree>)                                                                                         | Easy    |                | [solution](<_700. Search in a Binary Search Tree.md>)                                              | c, java, py                      | Jul 17, 2024    |
-| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Easy    | Daily          | [solution](<_1248. Count Number of Nice Subarrays.md>)                                             | py                               | Jun 22, 2024    |
+| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Medium  | Daily          | [solution](<_1248. Count Number of Nice Subarrays.md>)                                             | py                               | Jun 22, 2024    |
 | 1700 | [Number of Students Unable to Eat Lunch](<https://leetcode.com/problems/number-of-students-unable-to-eat-lunch>)                                                                         | Easy    |                | [solution](<_1700. Number of Students Unable to Eat Lunch.md>)                                     | py                               | Jun 02, 2024    |
-| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                                         | Easy    | Weekly Premium | [solution](<_1836. Remove Duplicates From an Unsorted Linked List.md>)                             | java, py                         | Jul 08, 2024    |
-|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Easy    | Daily          | [solution](<_974. Subarray Sums Divisible by K.md>)                                                | java, py                         | Jun 09, 2024    |
-| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Easy    |                | [solution](<_1980. Find Unique Binary String.md>)                                                  | c, py                            | Jun 27, 2024    |
-|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                                           | Easy    | B75, N150      | [solution](<_5. Longest Palindromic Substring.md>)                                                 | py                               | Jul 05, 2024    |
+| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                                         | Medium  | Weekly Premium | [solution](<_1836. Remove Duplicates From an Unsorted Linked List.md>)                             | java, py                         | Jul 08, 2024    |
+|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Medium  | Daily          | [solution](<_974. Subarray Sums Divisible by K.md>)                                                | java, py                         | Jun 09, 2024    |
+| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Medium  |                | [solution](<_1980. Find Unique Binary String.md>)                                                  | c, py                            | Jun 27, 2024    |
+|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                                           | Medium  | B75, N150      | [solution](<_5. Longest Palindromic Substring.md>)                                                 | py                               | Jul 05, 2024    |
 | 1474 | [Delete N Nodes After M Nodes of a Linked List](<https://leetcode.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list>)                                                           | Easy    |                | [solution](<_1474. Delete N Nodes After M Nodes of a Linked List.md>)                              | c, java                          | Jun 07, 2024    |
 |  414 | [Third Maximum Number](<https://leetcode.com/problems/third-maximum-number>)                                                                                                             | Easy    |                | [solution](<_414. Third Maximum Number.md>)                                                        | py                               | May 23, 2024    |
-|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Easy    |                | [solution](<_794. Valid Tic-Tac-Toe State.md>)                                                     | py                               | Jul 05, 2024    |
-| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                                           | Easy    |                | [solution](<_2385. Amount of Time for Binary Tree to Be Infected.md>)                              | py                               | Jun 26, 2024    |
-| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                                           | Easy    |                | [solution](<_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                      | py                               | Jul 04, 2024    |
-|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                                 | Easy    |                | [solution](<_725. Split Linked List in Parts.md>)                                                  | py                               | Jun 22, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily          | [solution](<_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                             | Jun 24, 2024    |
+|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Medium  |                | [solution](<_794. Valid Tic-Tac-Toe State.md>)                                                     | py                               | Jul 05, 2024    |
+| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                                           | Medium  |                | [solution](<_2385. Amount of Time for Binary Tree to Be Infected.md>)                              | py                               | Jun 26, 2024    |
+| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                                           | Medium  |                | [solution](<_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                      | py                               | Jul 04, 2024    |
+|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                                 | Medium  |                | [solution](<_725. Split Linked List in Parts.md>)                                                  | py                               | Jun 22, 2024    |
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily          | [solution](<_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                             | Jun 24, 2024    |
 |  408 | [Valid Word Abbreviation](<https://leetcode.com/problems/valid-word-abbreviation>)                                                                                                       | Easy    |                | [solution](<_408. Valid Word Abbreviation.md>)                                                     | py                               | Jun 02, 2024    |
 | 1518 | [Water Bottles](<https://leetcode.com/problems/water-bottles>)                                                                                                                           | Easy    | Daily          | [solution](<_1518. Water Bottles.md>)                                                              | c, cpp, cs, java, js, py, ts     | Jul 07, 2024    |
-| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                                         | Easy    |                | [solution](<_1804. Implement Trie II (Prefix Tree).md>)                                            | py                               | Jun 27, 2024    |
+| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                                         | Medium  |                | [solution](<_1804. Implement Trie II (Prefix Tree).md>)                                            | py                               | Jun 27, 2024    |
 |  374 | [Guess Number Higher or Lower](<https://leetcode.com/problems/guess-number-higher-or-lower>)                                                                                             | Easy    |                | [solution](<_374. Guess Number Higher or Lower.md>)                                                | java, py                         | Jun 02, 2024    |
-| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Easy    | Daily          | [solution](<_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                               | Jul 20, 2024    |
+| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Medium  | Daily          | [solution](<_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                               | Jul 20, 2024    |
 |  771 | [Jewels and Stones](<https://leetcode.com/problems/jewels-and-stones>)                                                                                                                   | Easy    |                | [solution](<_771. Jewels and Stones.md>)                                                           | java, py                         | Jun 02, 2024    |
-|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                                               | Easy    |                | [solution](<_863. All Nodes Distance K in Binary Tree.md>)                                         | py                               | Jun 26, 2024    |
-|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Easy    | N150           | [solution](<_567. Permutation in String.md>)                                                       | py                               | Jul 06, 2024    |
+|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                                               | Medium  |                | [solution](<_863. All Nodes Distance K in Binary Tree.md>)                                         | py                               | Jun 26, 2024    |
+|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Medium  | N150           | [solution](<_567. Permutation in String.md>)                                                       | py                               | Jul 06, 2024    |
 | 1122 | [Relative Sort Array](<https://leetcode.com/problems/relative-sort-array>)                                                                                                               | Easy    | Daily          | [solution](<_1122. Relative Sort Array.md>)                                                        | java, py                         | Jun 11, 2024    |
-| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                                               | Easy    |                | [solution](<_1209. Remove All Adjacent Duplicates in String II.md>)                                | py                               | Jun 19, 2024    |
-| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                                 | Easy    |                | [solution](<_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                         | py                               | Jun 15, 2024    |
+| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                                               | Medium  |                | [solution](<_1209. Remove All Adjacent Duplicates in String II.md>)                                | py                               | Jun 19, 2024    |
+| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                                 | Medium  |                | [solution](<_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                         | py                               | Jun 15, 2024    |
 | 2665 | [Counter II](<https://leetcode.com/problems/counter-ii>)                                                                                                                                 | Easy    |                | [solution](<_2665. Counter II.md>)                                                                 | js                               | Jul 09, 2024    |
-|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Easy    | N150           | [solution](<_78. Subsets.md>)                                                                      | py                               | Jun 02, 2024    |
-|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                                 | Easy    |                | [solution](<_791. Custom Sort String.md>)                                                          | java                             | Jun 24, 2024    |
-| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Easy    |                | [solution](<_1481. Least Number of Unique Integers after K Removals.md>)                           | py                               | Jun 15, 2024    |
+|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Medium  | N150           | [solution](<_78. Subsets.md>)                                                                      | py                               | Jun 02, 2024    |
+|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                                 | Medium  |                | [solution](<_791. Custom Sort String.md>)                                                          | java                             | Jun 24, 2024    |
+| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Medium  |                | [solution](<_1481. Least Number of Unique Integers after K Removals.md>)                           | py                               | Jun 15, 2024    |
 |   94 | [Binary Tree Inorder Traversal](<https://leetcode.com/problems/binary-tree-inorder-traversal>)                                                                                           | Easy    |                | [solution](<_94. Binary Tree Inorder Traversal.md>)                                                | java, py                         | Jun 29, 2024    |
 |  995 | [Minimum Number of K Consecutive Bit Flips](<https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips>)                                                                   | Hard    | Daily          | [solution](<_995. Minimum Number of K Consecutive Bit Flips.md>)                                   | c, py                            | Jun 24, 2024    |
-| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                                   | Easy    |                | [solution](<_2130. Maximum Twin Sum of a Linked List.md>)                                          | py                               | Jun 21, 2024    |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Easy    | Daily          | [solution](<_1110. Delete Nodes And Return Forest.md>)                                             | py                               | Jul 17, 2024    |
+| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                                   | Medium  |                | [solution](<_2130. Maximum Twin Sum of a Linked List.md>)                                          | py                               | Jun 21, 2024    |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Medium  | Daily          | [solution](<_1110. Delete Nodes And Return Forest.md>)                                             | py                               | Jul 17, 2024    |
 | 1351 | [Count Negative Numbers in a Sorted Matrix](<https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix>)                                                                   | Easy    |                | [solution](<_1351. Count Negative Numbers in a Sorted Matrix.md>)                                  | java, py                         | Jun 01, 2024    |
-|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                                           | Easy    |                | [solution](<_919. Complete Binary Tree Inserter.md>)                                               | py                               | Jul 05, 2024    |
-|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Easy    | B75, N150      | [solution](<_271. Encode and Decode Strings.md>)                                                   | py                               | Jun 13, 2024    |
-|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                               | Easy    |                | [solution](<_24. Swap Nodes in Pairs.md>)                                                          | c                                | Jun 07, 2024    |
+|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                                           | Medium  |                | [solution](<_919. Complete Binary Tree Inserter.md>)                                               | py                               | Jul 05, 2024    |
+|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Medium  | B75, N150      | [solution](<_271. Encode and Decode Strings.md>)                                                   | py                               | Jun 13, 2024    |
+|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                               | Medium  |                | [solution](<_24. Swap Nodes in Pairs.md>)                                                          | c                                | Jun 07, 2024    |
 |   20 | [Valid Parentheses](<https://leetcode.com/problems/valid-parentheses>)                                                                                                                   | Easy    | B75, N150      | [solution](<_20. Valid Parentheses.md>)                                                            | java                             | May 22, 2024    |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Easy    |                | [solution](<_1268. Search Suggestions System.md>)                                                  | py                               | Jun 29, 2024    |
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Medium  |                | [solution](<_1268. Search Suggestions System.md>)                                                  | py                               | Jun 29, 2024    |
 |    1 | [Two Sum](<https://leetcode.com/problems/two-sum>)                                                                                                                                       | Easy    | B75, N150      | [solution](<_1. Two Sum.md>)                                                                       | java, py                         | May 22, 2024    |
-|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Easy    |                | [solution](<_622. Design Circular Queue.md>)                                                       | py                               | Jul 06, 2024    |
+|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Medium  |                | [solution](<_622. Design Circular Queue.md>)                                                       | py                               | Jul 06, 2024    |
 | 3136 | [Valid Word](<https://leetcode.com/problems/valid-word>)                                                                                                                                 | Easy    |                | [solution](<_3136. Valid Word.md>)                                                                 | c, py                            | Jul 03, 2024    |
-| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Easy    | Weekly Premium | [solution](<_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                               | Jul 04, 2024    |
-| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Easy    | Weekly Premium | [solution](<_2743. Count Substrings Without Repeating Character.md>)                               | java, py                         | Jun 22, 2024    |
-|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                                      | Easy    | N150           | [solution](<_50. Pow(x, n).md>)                                                                    | c, java, py                      | Jun 23, 2024    |
-| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                                       | Easy    |                | [solution](<_2095. Delete the Middle Node of a Linked List.md>)                                    | c, java                          | Jun 07, 2024    |
+| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Medium  | Weekly Premium | [solution](<_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                               | Jul 04, 2024    |
+| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Medium  | Weekly Premium | [solution](<_2743. Count Substrings Without Repeating Character.md>)                               | java, py                         | Jun 22, 2024    |
+|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                                      | Medium  | N150           | [solution](<_50. Pow(x, n).md>)                                                                    | c, java, py                      | Jun 23, 2024    |
+| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                                       | Medium  |                | [solution](<_2095. Delete the Middle Node of a Linked List.md>)                                    | c, java                          | Jun 07, 2024    |
 | 2751 | [Robot Collisions](<https://leetcode.com/problems/robot-collisions>)                                                                                                                     | Hard    | Daily          | [solution](<_2751. Robot Collisions.md>)                                                           | py                               | Jul 13, 2024    |
 | 1255 | [Maximum Score Words Formed by Letters](<https://leetcode.com/problems/maximum-score-words-formed-by-letters>)                                                                           | Hard    |                | [solution](<_1255. Maximum Score Words Formed by Letters.md>)                                      | py                               | Jun 15, 2024    |
-|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                                   | Easy    |                | [solution](<_708. Insert into a Sorted Circular Linked List.md>)                                   | py                               | Jun 22, 2024    |
-| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)                               | Easy    | Contest        | [solution](<_3211. Generate Binary Strings Without Adjacent Zeros.md>)                             | js, py                           | Jul 07, 2024    |
-|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                                             | Easy    |                | [solution](<_107. Binary Tree Level Order Traversal II.md>)                                        | java                             | Jul 04, 2024    |
-|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                                                             | Easy    |                | [solution](<_450. Delete Node in a BST.md>)                                                        | py                               | Jun 29, 2024    |
-| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                                   | Easy    |                | [solution](<_1698. Number of Distinct Substrings in a String.md>)                                  | java, py                         | Jun 02, 2024    |
-|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Easy    |                | [solution](<_380. Insert Delete GetRandom O(1).md>)                                                | java                             | Jul 06, 2024    |
-|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Easy    | B75, N150      | [solution](<_238. Product of Array Except Self.md>)                                                | py                               | Jun 13, 2024    |
+|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                                   | Medium  |                | [solution](<_708. Insert into a Sorted Circular Linked List.md>)                                   | py                               | Jun 22, 2024    |
+| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)                               | Medium  | Contest        | [solution](<_3211. Generate Binary Strings Without Adjacent Zeros.md>)                             | js, py                           | Jul 07, 2024    |
+|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                                             | Medium  |                | [solution](<_107. Binary Tree Level Order Traversal II.md>)                                        | java                             | Jul 04, 2024    |
+|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                                                             | Medium  |                | [solution](<_450. Delete Node in a BST.md>)                                                        | py                               | Jun 29, 2024    |
+| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                                   | Medium  |                | [solution](<_1698. Number of Distinct Substrings in a String.md>)                                  | java, py                         | Jun 02, 2024    |
+|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Medium  |                | [solution](<_380. Insert Delete GetRandom O(1).md>)                                                | java                             | Jul 06, 2024    |
+|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Medium  | B75, N150      | [solution](<_238. Product of Array Except Self.md>)                                                | py                               | Jun 13, 2024    |
 |  124 | [Binary Tree Maximum Path Sum](<https://leetcode.com/problems/binary-tree-maximum-path-sum>)                                                                                             | Hard    | B75, N150      | [solution](<_124. Binary Tree Maximum Path Sum.md>)                                                | py                               | Jul 04, 2024    |
-| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Easy    | Daily          | [solution](<_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                               | Jul 11, 2024    |
-|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Easy    | B75, N150      | [solution](<_79. Word Search.md>)                                                                  | py                               | Jun 27, 2024    |
-| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                                         | Easy    |                | [solution](<_1265. Print Immutable Linked List in Reverse.md>)                                     | c, py                            | Jun 06, 2024    |
-|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Easy    |                | [solution](<_251. Flatten 2D Vector.md>)                                                           | py                               | May 22, 2024    |
-|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                                                       | Easy    | B75            | [solution](<_236. Lowest Common Ancestor of a Binary Tree.md>)                                     | py                               | Jul 15, 2024    |
+| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Medium  | Daily          | [solution](<_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                               | Jul 11, 2024    |
+|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Medium  | B75, N150      | [solution](<_79. Word Search.md>)                                                                  | py                               | Jun 27, 2024    |
+| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                                         | Medium  |                | [solution](<_1265. Print Immutable Linked List in Reverse.md>)                                     | c, py                            | Jun 06, 2024    |
+|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Medium  |                | [solution](<_251. Flatten 2D Vector.md>)                                                           | py                               | May 22, 2024    |
+|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                                                       | Medium  | B75            | [solution](<_236. Lowest Common Ancestor of a Binary Tree.md>)                                     | py                               | Jul 15, 2024    |
 |  409 | [Longest Palindrome](<https://leetcode.com/problems/longest-palindrome>)                                                                                                                 | Easy    | Daily          | [solution](<_409. Longest Palindrome.md>)                                                          | c, py                            | Jun 04, 2024    |
-|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Easy    | B75, N150      | [solution](<_48. Rotate Image.md>)                                                                 | c, py                            | Jun 15, 2024    |
+|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Medium  | B75, N150      | [solution](<_48. Rotate Image.md>)                                                                 | c, py                            | Jun 15, 2024    |
 | 2582 | [Pass the Pillow](<https://leetcode.com/problems/pass-the-pillow>)                                                                                                                       | Easy    | Daily          | [solution](<_2582. Pass the Pillow.md>)                                                            | c, cpp, cs, java, js, py         | Jul 06, 2024    |
-| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Easy    | Daily          | [solution](<_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                               | Jul 16, 2024    |
-|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Easy    |                | [solution](<_713. Subarray Product Less Than K.md>)                                                | py                               | Jul 01, 2024    |
-| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                                           | Easy    |                | [solution](<_1759. Count Number of Homogenous Substrings.md>)                                      | c, java                          | Jun 10, 2024    |
-|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                                 | Easy    |                | [solution](<_676. Implement Magic Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
+| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Medium  | Daily          | [solution](<_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                               | Jul 16, 2024    |
+|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Medium  |                | [solution](<_713. Subarray Product Less Than K.md>)                                                | py                               | Jul 01, 2024    |
+| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                                           | Medium  |                | [solution](<_1759. Count Number of Homogenous Substrings.md>)                                      | c, java                          | Jun 10, 2024    |
+|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                                 | Medium  |                | [solution](<_676. Implement Magic Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
 | 1184 | [Distance Between Bus Stops](<https://leetcode.com/problems/distance-between-bus-stops>)                                                                                                 | Easy    |                | [solution](<_1184. Distance Between Bus Stops.md>)                                                 | py                               | May 31, 2024    |
-|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Easy    | N150           | [solution](<_90. Subsets II.md>)                                                                   | py                               | Jul 03, 2024    |
-| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Easy    |                | [solution](<_1730. Shortest Path to Get Food.md>)                                                  | py                               | Jun 26, 2024    |
-| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Easy    | Daily          | [solution](<_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                               | Jul 18, 2024    |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Easy    | Daily          | [solution](<_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py             | Jul 08, 2024    |
-| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                                                     | Easy    |                | [solution](<_1490. Clone N-ary Tree.md>)                                                           | java, py                         | Jun 02, 2024    |
-| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Easy    |                | [solution](<_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                            | Jun 10, 2024    |
-| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                               | Easy    |                | [solution](<_2405. Optimal Partition of String.md>)                                                | py                               | Jun 23, 2024    |
-| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Easy    |                | [solution](<_1254. Number of Closed Islands.md>)                                                   | py                               | Jun 26, 2024    |
+|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Medium  | N150           | [solution](<_90. Subsets II.md>)                                                                   | py                               | Jul 03, 2024    |
+| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Medium  |                | [solution](<_1730. Shortest Path to Get Food.md>)                                                  | py                               | Jun 26, 2024    |
+| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Medium  | Daily          | [solution](<_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                               | Jul 18, 2024    |
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Medium  | Daily          | [solution](<_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py             | Jul 08, 2024    |
+| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                                                     | Medium  |                | [solution](<_1490. Clone N-ary Tree.md>)                                                           | java, py                         | Jun 02, 2024    |
+| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Medium  |                | [solution](<_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                            | Jun 10, 2024    |
+| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                               | Medium  |                | [solution](<_2405. Optimal Partition of String.md>)                                                | py                               | Jun 23, 2024    |
+| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Medium  |                | [solution](<_1254. Number of Closed Islands.md>)                                                   | py                               | Jun 26, 2024    |
 | 1380 | [Lucky Numbers in a Matrix](<https://leetcode.com/problems/lucky-numbers-in-a-matrix>)                                                                                                   | Easy    | Daily          | [solution](<_1380. Lucky Numbers in a Matrix.md>)                                                  | js, py                           | Jul 19, 2024    |
-|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Easy    |                | [solution](<_946. Validate Stack Sequences.md>)                                                    | c, py                            | Jun 12, 2024    |
-|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                                 | Easy    | B75, N150      | [solution](<_211. Design Add and Search Words Data Structure.md>)                                  | py                               | Jun 27, 2024    |
-| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Easy    |                | [solution](<_1020. Number of Enclaves.md>)                                                         | py                               | Jun 26, 2024    |
-|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Easy    | B75, N150      | [solution](<_128. Longest Consecutive Sequence.md>)                                                | java, py                         | Jun 13, 2024    |
+|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Medium  |                | [solution](<_946. Validate Stack Sequences.md>)                                                    | c, py                            | Jun 12, 2024    |
+|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                                 | Medium  | B75, N150      | [solution](<_211. Design Add and Search Words Data Structure.md>)                                  | py                               | Jun 27, 2024    |
+| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Medium  |                | [solution](<_1020. Number of Enclaves.md>)                                                         | py                               | Jun 26, 2024    |
+|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Medium  | B75, N150      | [solution](<_128. Longest Consecutive Sequence.md>)                                                | java, py                         | Jun 13, 2024    |
 |  141 | [Linked List Cycle](<https://leetcode.com/problems/linked-list-cycle>)                                                                                                                   | Easy    | B75, N150      | [solution](<_141. Linked List Cycle.md>)                                                           | c, py                            | Jun 04, 2024    |
-|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                               | Easy    |                | [solution](<_61. Rotate List.md>)                                                                  | py                               | Jun 22, 2024    |
+|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                               | Medium  |                | [solution](<_61. Rotate List.md>)                                                                  | py                               | Jun 22, 2024    |
 | 2954 | [Count the Number of Infection Sequences](<https://leetcode.com/problems/count-the-number-of-infection-sequences>)                                                                       | Hard    |                | [solution](<_2954. Count the Number of Infection Sequences.md>)                                    | py                               | Jun 26, 2024    |
 | 1028 | [Recover a Tree From Preorder Traversal](<https://leetcode.com/problems/recover-a-tree-from-preorder-traversal>)                                                                         | Hard    |                | [solution](<_1028. Recover a Tree From Preorder Traversal.md>)                                     | py                               | Jul 01, 2024    |
-|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                                           | Easy    | N150           | [solution](<_17. Letter Combinations of a Phone Number.md>)                                        | java                             | Jul 14, 2024    |
-|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                                           | Easy    | N150           | [solution](<_138. Copy List with Random Pointer.md>)                                               | py                               | Jun 27, 2024    |
-|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                                           | Easy    |                | [solution](<_166. Fraction to Recurring Decimal.md>)                                               | py                               | May 31, 2024    |
-| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                                           | Easy    |                | [solution](<_1525. Number of Good Ways to Split a String.md>)                                      | py                               | Jun 01, 2024    |
-|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Easy    |                | [solution](<_909. Snakes and Ladders.md>)                                                          | py                               | Jun 12, 2024    |
-|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                                               | Easy    |                | [solution](<_513. Find Bottom Left Tree Value.md>)                                                 | java                             | Jul 03, 2024    |
-|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                                                 | Easy    |                | [solution](<_366. Find Leaves of Binary Tree.md>)                                                  | py                               | Jun 12, 2024    |
-|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Easy    | B75, N150      | [solution](<_39. Combination Sum.md>)                                                              | py                               | Jul 16, 2024    |
-|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Easy    |                | [solution](<_542. 01 Matrix.md>)                                                                   | py                               | Jun 26, 2024    |
-| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                                 | Easy    |                | [solution](<_3064. Guess the Number Using Bitwise Questions I.md>)                                 | c, py                            | Jun 06, 2024    |
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Easy    | B75, N150      | [solution](<_347. Top K Frequent Elements.md>)                                                     | py                               | Jun 13, 2024    |
-| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                                                   | Easy    |                | [solution](<_1315. Sum of Nodes with Even-Valued Grandparent.md>)                                  | py                               | Jun 12, 2024    |
-| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                                                   | Easy    |                | [solution](<_2671. Frequency Tracker.md>)                                                          | py                               | Jun 28, 2024    |
+|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                                           | Medium  | N150           | [solution](<_17. Letter Combinations of a Phone Number.md>)                                        | java                             | Jul 14, 2024    |
+|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                                           | Medium  | N150           | [solution](<_138. Copy List with Random Pointer.md>)                                               | py                               | Jun 27, 2024    |
+|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                                           | Medium  |                | [solution](<_166. Fraction to Recurring Decimal.md>)                                               | py                               | May 31, 2024    |
+| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                                           | Medium  |                | [solution](<_1525. Number of Good Ways to Split a String.md>)                                      | py                               | Jun 01, 2024    |
+|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Medium  |                | [solution](<_909. Snakes and Ladders.md>)                                                          | py                               | Jun 12, 2024    |
+|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                                               | Medium  |                | [solution](<_513. Find Bottom Left Tree Value.md>)                                                 | java                             | Jul 03, 2024    |
+|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                                                 | Medium  |                | [solution](<_366. Find Leaves of Binary Tree.md>)                                                  | py                               | Jun 12, 2024    |
+|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Medium  | B75, N150      | [solution](<_39. Combination Sum.md>)                                                              | py                               | Jul 16, 2024    |
+|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Medium  |                | [solution](<_542. 01 Matrix.md>)                                                                   | py                               | Jun 26, 2024    |
+| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                                 | Medium  |                | [solution](<_3064. Guess the Number Using Bitwise Questions I.md>)                                 | c, py                            | Jun 06, 2024    |
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Medium  | B75, N150      | [solution](<_347. Top K Frequent Elements.md>)                                                     | py                               | Jun 13, 2024    |
+| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                                                   | Medium  |                | [solution](<_1315. Sum of Nodes with Even-Valued Grandparent.md>)                                  | py                               | Jun 12, 2024    |
+| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                                                   | Medium  |                | [solution](<_2671. Frequency Tracker.md>)                                                          | py                               | Jun 28, 2024    |
 |   23 | [Merge k Sorted Lists](<https://leetcode.com/problems/merge-k-sorted-lists>)                                                                                                             | Hard    | B75, N150      | [solution](<_23. Merge k Sorted Lists.md>)                                                         | py                               | Jun 17, 2024    |
 | 1598 | [Crawler Log Folder](<https://leetcode.com/problems/crawler-log-folder>)                                                                                                                 | Easy    | Daily          | [solution](<_1598. Crawler Log Folder.md>)                                                         | c, js                            | Jul 10, 2024    |
-| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Easy    | Contest        | [solution](<_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                               | Jul 07, 2024    |
-| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Easy    |                | [solution](<_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                               | May 31, 2024    |
-|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                                           | Easy    |                | [solution](<_394. Decode String.md>)                                                               | py                               | Jun 15, 2024    |
-|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                                                   | Easy    | B75, N150      | [solution](<_102. Binary Tree Level Order Traversal.md>)                                           | java                             | Jul 04, 2024    |
-| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Easy    |                | [solution](<_2473. Minimum Cost to Buy Apples.md>)                                                 | py                               | Jun 29, 2024    |
-| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Easy    | Daily          | [solution](<_1552. Magnetic Force Between Two Balls.md>)                                           | py                               | Jun 20, 2024    |
-| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                                 | Easy    |                | [solution](<_1166. Design File System.md>)                                                         | py                               | Jun 28, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Easy    | Contest        | [solution](<_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                               | Jul 07, 2024    |
-| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                                                         | Easy    |                | [solution](<_1522. Diameter of N-Ary Tree.md>)                                                     | py                               | Jul 03, 2024    |
+| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Medium  | Contest        | [solution](<_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                               | Jul 07, 2024    |
+| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Medium  |                | [solution](<_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                               | May 31, 2024    |
+|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                                           | Medium  |                | [solution](<_394. Decode String.md>)                                                               | py                               | Jun 15, 2024    |
+|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                                                   | Medium  | B75, N150      | [solution](<_102. Binary Tree Level Order Traversal.md>)                                           | java                             | Jul 04, 2024    |
+| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Medium  |                | [solution](<_2473. Minimum Cost to Buy Apples.md>)                                                 | py                               | Jun 29, 2024    |
+| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Medium  | Daily          | [solution](<_1552. Magnetic Force Between Two Balls.md>)                                           | py                               | Jun 20, 2024    |
+| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                                 | Medium  |                | [solution](<_1166. Design File System.md>)                                                         | py                               | Jun 28, 2024    |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Medium  | Contest        | [solution](<_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                               | Jul 07, 2024    |
+| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                                                         | Medium  |                | [solution](<_1522. Diameter of N-Ary Tree.md>)                                                     | py                               | Jul 03, 2024    |
 | 1684 | [Count the Number of Consistent Strings](<https://leetcode.com/problems/count-the-number-of-consistent-strings>)                                                                         | Easy    |                | [solution](<_1684. Count the Number of Consistent Strings.md>)                                     | c, py                            | Jun 06, 2024    |
 |  744 | [Find Smallest Letter Greater Than Target](<https://leetcode.com/problems/find-smallest-letter-greater-than-target>)                                                                     | Easy    |                | [solution](<_744. Find Smallest Letter Greater Than Target.md>)                                    | java, py                         | Jun 01, 2024    |
-|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                                             | Easy    |                | [solution](<_77. Combinations.md>)                                                                 | py                               | Jun 07, 2024    |
+|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                                             | Medium  |                | [solution](<_77. Combinations.md>)                                                                 | py                               | Jun 07, 2024    |
 |  125 | [Valid Palindrome](<https://leetcode.com/problems/valid-palindrome>)                                                                                                                     | Easy    | B75, N150      | [solution](<_125. Valid Palindrome.md>)                                                            | c, py                            | Jun 07, 2024    |
-| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Easy    |                | [solution](<_1905. Count Sub Islands.md>)                                                          | py                               | Jun 24, 2024    |
+| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Medium  |                | [solution](<_1905. Count Sub Islands.md>)                                                          | py                               | Jun 24, 2024    |
 | 1791 | [Find Center of Star Graph](<https://leetcode.com/problems/find-center-of-star-graph>)                                                                                                   | Easy    | Daily          | [solution](<_1791. Find Center of Star Graph.md>)                                                  | c, cpp, java, py                 | Jun 27, 2024    |
 |  993 | [Cousins in Binary Tree](<https://leetcode.com/problems/cousins-in-binary-tree>)                                                                                                         | Easy    |                | [solution](<_993. Cousins in Binary Tree.md>)                                                      | py                               | Jul 04, 2024    |
-| 2623 | [Memoize](<https://leetcode.com/problems/memoize>)                                                                                                                                       | Easy    |                | [solution](<_2623. Memoize.md>)                                                                    | js                               | Jul 09, 2024    |
-| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Easy    |                | [solution](<_2225. Find Players With Zero or One Losses.md>)                                       | java                             | Jun 24, 2024    |
-| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                                             | Easy    |                | [solution](<_2374. Node With Highest Edge Score.md>)                                               | py                               | Jun 18, 2024    |
-| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                                       | Easy    |                | [solution](<_2165. Smallest Value of the Rearranged Number.md>)                                    | py                               | Jul 01, 2024    |
+| 2623 | [Memoize](<https://leetcode.com/problems/memoize>)                                                                                                                                       | Medium  |                | [solution](<_2623. Memoize.md>)                                                                    | js                               | Jul 09, 2024    |
+| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Medium  |                | [solution](<_2225. Find Players With Zero or One Losses.md>)                                       | java                             | Jun 24, 2024    |
+| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                                             | Medium  |                | [solution](<_2374. Node With Highest Edge Score.md>)                                               | py                               | Jun 18, 2024    |
+| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                                       | Medium  |                | [solution](<_2165. Smallest Value of the Rearranged Number.md>)                                    | py                               | Jul 01, 2024    |
 |   21 | [Merge Two Sorted Lists](<https://leetcode.com/problems/merge-two-sorted-lists>)                                                                                                         | Easy    | B75, N150      | [solution](<_21. Merge Two Sorted Lists.md>)                                                       | java                             | May 22, 2024    |
-|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Easy    |                | [solution](<_890. Find and Replace Pattern.md>)                                                    | py                               | Jul 03, 2024    |
-|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Easy    |                | [solution](<_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py         | Jul 11, 2024    |
-|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Easy    |                | [solution](<_735. Asteroid Collision.md>)                                                          | py                               | Jul 14, 2024    |
-| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Easy    |                | [solution](<_2679. Sum in a Matrix.md>)                                                            | java                             | May 22, 2024    |
+|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Medium  |                | [solution](<_890. Find and Replace Pattern.md>)                                                    | py                               | Jul 03, 2024    |
+|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Medium  |                | [solution](<_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py         | Jul 11, 2024    |
+|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Medium  |                | [solution](<_735. Asteroid Collision.md>)                                                          | py                               | Jul 14, 2024    |
+| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Medium  |                | [solution](<_2679. Sum in a Matrix.md>)                                                            | java                             | May 22, 2024    |
 | 2723 | [Add Two Promises](<https://leetcode.com/problems/add-two-promises>)                                                                                                                     | Easy    |                | [solution](<_2723. Add Two Promises.md>)                                                           | js                               | Jul 09, 2024    |
-|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                                               | Easy    | B75, N150      | [solution](<_208. Implement Trie (Prefix Tree).md>)                                                | py                               | Jun 27, 2024    |
-|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                                       | Easy    |                | [solution](<_784. Letter Case Permutation.md>)                                                     | py                               | Jun 15, 2024    |
+|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                                               | Medium  | B75, N150      | [solution](<_208. Implement Trie (Prefix Tree).md>)                                                | py                               | Jun 27, 2024    |
+|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                                       | Medium  |                | [solution](<_784. Letter Case Permutation.md>)                                                     | py                               | Jun 15, 2024    |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                                                               | Hard    |                | [solution](<_272. Closest Binary Search Tree Value II.md>)                                         | py                               | Jul 01, 2024    |
-| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Easy    | Contest        | [solution](<_3179. Find the N-th Value After K Seconds.md>)                                        | py                               | Jul 07, 2024    |
-|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                                   | Easy    |                | [solution](<_535. Encode and Decode TinyURL.md>)                                                   | py                               | Jun 07, 2024    |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                                       | Easy    |                | [solution](<_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)                     | py                               | Jun 12, 2024    |
-| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                                               | Easy    |                | [solution](<_2396. Strictly Palindromic Number.md>)                                                | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
-| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Easy    |                | [solution](<_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py                      | Jun 23, 2024    |
-|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                                               | Easy    |                | [solution](<_113. Path Sum II.md>)                                                                 | py                               | Jul 03, 2024    |
-|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                                                     | Easy    |                | [solution](<_129. Sum Root to Leaf Numbers.md>)                                                    | py                               | Jun 07, 2024    |
-| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Easy    | Daily          | [solution](<_1701. Average Waiting Time.md>)                                                       | js, py                           | Jul 09, 2024    |
+| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Medium  | Contest        | [solution](<_3179. Find the N-th Value After K Seconds.md>)                                        | py                               | Jul 07, 2024    |
+|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                                   | Medium  |                | [solution](<_535. Encode and Decode TinyURL.md>)                                                   | py                               | Jun 07, 2024    |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                                       | Medium  |                | [solution](<_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)                     | py                               | Jun 12, 2024    |
+| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                                               | Medium  |                | [solution](<_2396. Strictly Palindromic Number.md>)                                                | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
+| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Medium  |                | [solution](<_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py                      | Jun 23, 2024    |
+|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                                               | Medium  |                | [solution](<_113. Path Sum II.md>)                                                                 | py                               | Jul 03, 2024    |
+|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                                                     | Medium  |                | [solution](<_129. Sum Root to Leaf Numbers.md>)                                                    | py                               | Jun 07, 2024    |
+| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Medium  | Daily          | [solution](<_1701. Average Waiting Time.md>)                                                       | js, py                           | Jul 09, 2024    |
 | 2704 | [To Be Or Not To Be](<https://leetcode.com/problems/to-be-or-not-to-be>)                                                                                                                 | Easy    |                | [solution](<_2704. To Be Or Not To Be.md>)                                                         | js                               | Jul 09, 2024    |
-|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Easy    | N150           | [solution](<_695. Max Area of Island.md>)                                                          | c                                | Jun 24, 2024    |
+|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Medium  | N150           | [solution](<_695. Max Area of Island.md>)                                                          | c                                | Jun 24, 2024    |
 |   25 | [Reverse Nodes in k-Group](<https://leetcode.com/problems/reverse-nodes-in-k-group>)                                                                                                     | Hard    | N150           | [solution](<_25. Reverse Nodes in k-Group.md>)                                                     | c                                | Jun 07, 2024    |
-| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                                       | Easy    | N150           | [solution](<_1448. Count Good Nodes in Binary Tree.md>)                                            | java                             | Jul 04, 2024    |
-|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Easy    |                | [solution](<_565. Array Nesting.md>)                                                               | py                               | Jul 02, 2024    |
-| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                                           | Easy    |                | [solution](<_1461. Check If a String Contains All Binary Codes of Size K.md>)                      | py                               | Jul 12, 2024    |
-| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                                   | Easy    |                | [solution](<_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                                  | py                               | Jul 05, 2024    |
-|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Easy    |                | [solution](<_817. Linked List Components.md>)                                                      | java                             | Jul 04, 2024    |
-| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Easy    | N150           | [solution](<_2013. Detect Squares.md>)                                                             | py                               | Jun 28, 2024    |
-| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Easy    | Contest        | [solution](<_3169. Count Days Without Meetings.md>)                                                | py                               | Jul 07, 2024    |
+| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                                       | Medium  | N150           | [solution](<_1448. Count Good Nodes in Binary Tree.md>)                                            | java                             | Jul 04, 2024    |
+|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Medium  |                | [solution](<_565. Array Nesting.md>)                                                               | py                               | Jul 02, 2024    |
+| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                                           | Medium  |                | [solution](<_1461. Check If a String Contains All Binary Codes of Size K.md>)                      | py                               | Jul 12, 2024    |
+| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                                   | Medium  |                | [solution](<_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                                  | py                               | Jul 05, 2024    |
+|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Medium  |                | [solution](<_817. Linked List Components.md>)                                                      | java                             | Jul 04, 2024    |
+| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Medium  | N150           | [solution](<_2013. Detect Squares.md>)                                                             | py                               | Jun 28, 2024    |
+| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Medium  | Contest        | [solution](<_3169. Count Days Without Meetings.md>)                                                | py                               | Jul 07, 2024    |
 |  502 | [IPO](<https://leetcode.com/problems/ipo>)                                                                                                                                               | Hard    | Daily          | [solution](<_502. IPO.md>)                                                                         | py                               | Jun 15, 2024    |
-|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                                                               | Easy    |                | [solution](<_173. Binary Search Tree Iterator.md>)                                                 | py                               | Jun 26, 2024    |
-| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Easy    |                | [solution](<_2433. Find The Original Array of Prefix Xor.md>)                                      | py                               | May 31, 2024    |
-| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Easy    | Contest        | [solution](<_3175. Find The First Player to win K Games in a Row.md>)                              | py                               | Jul 07, 2024    |
+|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                                                               | Medium  |                | [solution](<_173. Binary Search Tree Iterator.md>)                                                 | py                               | Jun 26, 2024    |
+| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Medium  |                | [solution](<_2433. Find The Original Array of Prefix Xor.md>)                                      | py                               | May 31, 2024    |
+| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Medium  | Contest        | [solution](<_3175. Find The First Player to win K Games in a Row.md>)                              | py                               | Jul 07, 2024    |
 | 1470 | [Shuffle the Array](<https://leetcode.com/problems/shuffle-the-array>)                                                                                                                   | Easy    |                | [solution](<_1470. Shuffle the Array.md>)                                                          | c                                | Jun 03, 2024    |
-|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Easy    | N150           | [solution](<_150. Evaluate Reverse Polish Notation.md>)                                            | py                               | Jun 11, 2024    |
-|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Easy    | N150           | [solution](<_36. Valid Sudoku.md>)                                                                 | py                               | Jun 13, 2024    |
-|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                                           | Easy    |                | [solution](<_921. Minimum Add to Make Parentheses Valid.md>)                                       | java, py                         | Jun 12, 2024    |
-| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Easy    | Contest        | [solution](<_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                               | Jul 07, 2024    |
-| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Easy    | Contest        | [solution](<_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                               | Jul 07, 2024    |
-| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Easy    |                | [solution](<_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                         | Jun 12, 2024    |
-|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Easy    |                | [solution](<_950. Reveal Cards In Increasing Order.md>)                                            | py                               | Jun 12, 2024    |
+|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Medium  | N150           | [solution](<_150. Evaluate Reverse Polish Notation.md>)                                            | py                               | Jun 11, 2024    |
+|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Medium  | N150           | [solution](<_36. Valid Sudoku.md>)                                                                 | py                               | Jun 13, 2024    |
+|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                                           | Medium  |                | [solution](<_921. Minimum Add to Make Parentheses Valid.md>)                                       | java, py                         | Jun 12, 2024    |
+| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Medium  | Contest        | [solution](<_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                               | Jul 07, 2024    |
+| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Medium  | Contest        | [solution](<_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                               | Jul 07, 2024    |
+| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Medium  |                | [solution](<_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                         | Jun 12, 2024    |
+|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Medium  |                | [solution](<_950. Reveal Cards In Increasing Order.md>)                                            | py                               | Jun 12, 2024    |
 |  112 | [Path Sum](<https://leetcode.com/problems/path-sum>)                                                                                                                                     | Easy    |                | [solution](<_112. Path Sum.md>)                                                                    | py                               | Jul 03, 2024    |
-| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Easy    |                | [solution](<_1019. Next Greater Node In Linked List.md>)                                           | py                               | Jun 22, 2024    |
-|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Easy    | N150           | [solution](<_46. Permutations.md>)                                                                 | py                               | Jun 07, 2024    |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                             | Easy    |                | [solution](<_314. Binary Tree Vertical Order Traversal.md>)                                        | py                               | Jun 12, 2024    |
+| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Medium  |                | [solution](<_1019. Next Greater Node In Linked List.md>)                                           | py                               | Jun 22, 2024    |
+|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Medium  | N150           | [solution](<_46. Permutations.md>)                                                                 | py                               | Jun 07, 2024    |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                             | Medium  |                | [solution](<_314. Binary Tree Vertical Order Traversal.md>)                                        | py                               | Jun 12, 2024    |
 | 2666 | [Allow One Function Call](<https://leetcode.com/problems/allow-one-function-call>)                                                                                                       | Easy    |                | [solution](<_2666. Allow One Function Call.md>)                                                    | js                               | Jul 09, 2024    |
-| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                                           | Easy    |                | [solution](<_2487. Remove Nodes From Linked List.md>)                                              | py                               | Jun 12, 2024    |
-|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                                                           | Easy    |                | [solution](<_687. Longest Univalue Path.md>)                                                       | py                               | Jul 03, 2024    |
-| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Easy    | Weekly Premium | [solution](<_1580. Put Boxes Into the Warehouse II.md>)                                            | py                               | Jun 15, 2024    |
-|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                                                               | Easy    | B75, N150      | [solution](<_98. Validate Binary Search Tree.md>)                                                  | c                                | Jun 23, 2024    |
-|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                             | Easy    |                | [solution](<_328. Odd Even Linked List.md>)                                                        | py                               | Jun 22, 2024    |
-|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Easy    |                | [solution](<_807. Max Increase to Keep City Skyline.md>)                                           | java                             | Jun 22, 2024    |
-| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                                       | Easy    |                | [solution](<_1721. Swapping Nodes in a Linked List.md>)                                            | c                                | Jun 07, 2024    |
+| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                                           | Medium  |                | [solution](<_2487. Remove Nodes From Linked List.md>)                                              | py                               | Jun 12, 2024    |
+|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                                                           | Medium  |                | [solution](<_687. Longest Univalue Path.md>)                                                       | py                               | Jul 03, 2024    |
+| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Medium  | Weekly Premium | [solution](<_1580. Put Boxes Into the Warehouse II.md>)                                            | py                               | Jun 15, 2024    |
+|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                                                               | Medium  | B75, N150      | [solution](<_98. Validate Binary Search Tree.md>)                                                  | c                                | Jun 23, 2024    |
+|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                             | Medium  |                | [solution](<_328. Odd Even Linked List.md>)                                                        | py                               | Jun 22, 2024    |
+|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Medium  |                | [solution](<_807. Max Increase to Keep City Skyline.md>)                                           | java                             | Jun 22, 2024    |
+| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                                       | Medium  |                | [solution](<_1721. Swapping Nodes in a Linked List.md>)                                            | c                                | Jun 07, 2024    |
 | 3174 | Biweekly Contest 132 - q1 - [Clear Digits](<https://leetcode.com/problems/clear-digits>)                                                                                                 | Easy    | Contest        | [solution](<_3174. Clear Digits.md>)                                                               | py                               | Jul 07, 2024    |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Easy    |                | [solution](<_1472. Design Browser History.md>)                                                     | py                               | Jul 06, 2024    |
-|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Easy    |                | [solution](<_720. Longest Word in Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
-| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                                                         | Easy    |                | [solution](<_1858. Longest Word With All Prefixes.md>)                                             | py                               | Jun 29, 2024    |
-|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Easy    | B75, N150      | [solution](<_49. Group Anagrams.md>)                                                               | py                               | Jun 13, 2024    |
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Medium  |                | [solution](<_1472. Design Browser History.md>)                                                     | py                               | Jul 06, 2024    |
+|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Medium  |                | [solution](<_720. Longest Word in Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
+| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                                                         | Medium  |                | [solution](<_1858. Longest Word With All Prefixes.md>)                                             | py                               | Jun 29, 2024    |
+|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Medium  | B75, N150      | [solution](<_49. Group Anagrams.md>)                                                               | py                               | Jun 13, 2024    |
 | 1455 | [Check If a Word Occurs As a Prefix of Any Word in a Sentence](<https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence>)                             | Easy    |                | [solution](<_1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence.md>)               | py                               | Jun 01, 2024    |
 | 1929 | [Concatenation of Array](<https://leetcode.com/problems/concatenation-of-array>)                                                                                                         | Easy    |                | [solution](<_1929. Concatenation of Array.md>)                                                     | c, java, py                      | Jun 03, 2024    |
-| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                                                             | Easy    |                | [solution](<_1026. Maximum Difference Between Node and Ancestor.md>)                               | py                               | Jun 23, 2024    |
-|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                                                   | Easy    | Weekly Premium | [solution](<_776. Split BST.md>)                                                                   | py                               | Jun 29, 2024    |
-|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Easy    |                | [solution](<_690. Employee Importance.md>)                                                         | java                             | Jul 02, 2024    |
-| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Easy    |                | [solution](<_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                               | Jun 29, 2024    |
+| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                                                             | Medium  |                | [solution](<_1026. Maximum Difference Between Node and Ancestor.md>)                               | py                               | Jun 23, 2024    |
+|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                                                   | Medium  | Weekly Premium | [solution](<_776. Split BST.md>)                                                                   | py                               | Jun 29, 2024    |
+|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Medium  |                | [solution](<_690. Employee Importance.md>)                                                         | java                             | Jul 02, 2024    |
+| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Medium  |                | [solution](<_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                               | Jun 29, 2024    |
 |  242 | [Valid Anagram](<https://leetcode.com/problems/valid-anagram>)                                                                                                                           | Easy    | B75, N150      | [solution](<_242. Valid Anagram.md>)                                                               | c, py                            | Jun 13, 2024    |
-| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Easy    |                | [solution](<_1852. Distinct Numbers in Each Subarray.md>)                                          | java                             | Jun 27, 2024    |
-|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Easy    |                | [solution](<_666. Path Sum IV.md>)                                                                 | py                               | Jul 03, 2024    |
-| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Easy    |                | [solution](<_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                          | Jun 22, 2024    |
-|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Easy    | B75, N150      | [solution](<_200. Number of Islands.md>)                                                           | py                               | Jun 17, 2024    |
-|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                                                                   | Easy    | N150           | [solution](<_155. Min Stack.md>)                                                                   | py                               | Jun 16, 2024    |
-| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                                 | Easy    |                | [solution](<_2211. Count Collisions on a Road.md>)                                                 | py                               | Jul 14, 2024    |
-|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                                                           | Easy    | B75, N150      | [solution](<_230. Kth Smallest Element in a BST.md>)                                               | py                               | Jun 29, 2024    |
+| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Medium  |                | [solution](<_1852. Distinct Numbers in Each Subarray.md>)                                          | java                             | Jun 27, 2024    |
+|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Medium  |                | [solution](<_666. Path Sum IV.md>)                                                                 | py                               | Jul 03, 2024    |
+| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Medium  |                | [solution](<_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                          | Jun 22, 2024    |
+|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Medium  | B75, N150      | [solution](<_200. Number of Islands.md>)                                                           | py                               | Jun 17, 2024    |
+|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                                                                   | Medium  | N150           | [solution](<_155. Min Stack.md>)                                                                   | py                               | Jun 16, 2024    |
+| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                                 | Medium  |                | [solution](<_2211. Count Collisions on a Road.md>)                                                 | py                               | Jul 14, 2024    |
+|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                                                           | Medium  | B75, N150      | [solution](<_230. Kth Smallest Element in a BST.md>)                                               | py                               | Jun 29, 2024    |
 | 1051 | [Height Checker](<https://leetcode.com/problems/height-checker>)                                                                                                                         | Easy    | Daily          | [solution](<_1051. Height Checker.md>)                                                             | c, py                            | Jun 10, 2024    |
-| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Easy    | Daily          | [solution](<_2196. Create Binary Tree From Descriptions.md>)                                       | py                               | Jul 15, 2024    |
+| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Medium  | Daily          | [solution](<_2196. Create Binary Tree From Descriptions.md>)                                       | py                               | Jul 15, 2024    |
 | 1426 | [Counting Elements](<https://leetcode.com/problems/counting-elements>)                                                                                                                   | Easy    |                | [solution](<_1426. Counting Elements.md>)                                                          | c                                | Jun 04, 2024    |
-|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                                       | Easy    |                | [solution](<_8. String to Integer (atoi).md>)                                                      | py                               | Jun 10, 2024    |
+|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                                       | Medium  |                | [solution](<_8. String to Integer (atoi).md>)                                                      | py                               | Jun 10, 2024    |
 |  637 | [Average of Levels in Binary Tree](<https://leetcode.com/problems/average-of-levels-in-binary-tree>)                                                                                     | Easy    |                | [solution](<_637. Average of Levels in Binary Tree.md>)                                            | py                               | Jul 04, 2024    |
-|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                                             | Easy    |                | [solution](<_856. Score of Parentheses.md>)                                                        | py                               | Jun 19, 2024    |
-| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Easy    |                | [solution](<_1535. Find the Winner of an Array Game.md>)                                           | py                               | Jun 08, 2024    |
-| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                               | Easy    |                | [solution](<_2734. Lexicographically Smallest String After Substring Operation.md>)                | py                               | Jun 29, 2024    |
-| 2624 | [Snail Traversal](<https://leetcode.com/problems/snail-traversal>)                                                                                                                       | Easy    |                | [solution](<_2624. Snail Traversal.md>)                                                            | js                               | Jul 09, 2024    |
-| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Easy    | Daily          | [solution](<_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                               | Jun 08, 2024    |
-| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                                       | Easy    |                | [solution](<_3157. Find the Level of Tree with Minimum Sum.md>)                                    | py                               | Jul 05, 2024    |
-| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Easy    |                | [solution](<_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py                 | Jun 24, 2024    |
-|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                                           | Easy    |                | [solution](<_71. Simplify Path.md>)                                                                | py                               | Jun 11, 2024    |
-|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Easy    |                | [solution](<_384. Shuffle an Array.md>)                                                            | py                               | Jun 29, 2024    |
-|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                                           | Easy    |                | [solution](<_82. Remove Duplicates from Sorted List II.md>)                                        | py                               | Jul 04, 2024    |
-|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Easy    |                | [solution](<_475. Heaters.md>)                                                                     | py                               | Jun 07, 2024    |
+|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                                             | Medium  |                | [solution](<_856. Score of Parentheses.md>)                                                        | py                               | Jun 19, 2024    |
+| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Medium  |                | [solution](<_1535. Find the Winner of an Array Game.md>)                                           | py                               | Jun 08, 2024    |
+| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                               | Medium  |                | [solution](<_2734. Lexicographically Smallest String After Substring Operation.md>)                | py                               | Jun 29, 2024    |
+| 2624 | [Snail Traversal](<https://leetcode.com/problems/snail-traversal>)                                                                                                                       | Medium  |                | [solution](<_2624. Snail Traversal.md>)                                                            | js                               | Jul 09, 2024    |
+| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Medium  | Daily          | [solution](<_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                               | Jun 08, 2024    |
+| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                                       | Medium  |                | [solution](<_3157. Find the Level of Tree with Minimum Sum.md>)                                    | py                               | Jul 05, 2024    |
+| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Medium  |                | [solution](<_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py                 | Jun 24, 2024    |
+|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                                           | Medium  |                | [solution](<_71. Simplify Path.md>)                                                                | py                               | Jun 11, 2024    |
+|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Medium  |                | [solution](<_384. Shuffle an Array.md>)                                                            | py                               | Jun 29, 2024    |
+|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                                           | Medium  |                | [solution](<_82. Remove Duplicates from Sorted List II.md>)                                        | py                               | Jul 04, 2024    |
+|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Medium  |                | [solution](<_475. Heaters.md>)                                                                     | py                               | Jun 07, 2024    |
 | 2629 | [Function Composition](<https://leetcode.com/problems/function-composition>)                                                                                                             | Easy    |                | [solution](<_2629. Function Composition.md>)                                                       | js                               | Jul 09, 2024    |
 |  110 | [Balanced Binary Tree](<https://leetcode.com/problems/balanced-binary-tree>)                                                                                                             | Easy    | N150           | [solution](<_110. Balanced Binary Tree.md>)                                                        | py                               | Jul 04, 2024    |
 | 1909 | [Remove One Element to Make the Array Strictly Increasing](<https://leetcode.com/problems/remove-one-element-to-make-the-array-strictly-increasing>)                                     | Easy    |                | [solution](<_1909. Remove One Element to Make the Array Strictly Increasing.md>)                   | c                                | Jun 17, 2024    |
-| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Easy    | Daily          | [solution](<_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                                | Jun 26, 2024    |
-|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                             | Easy    |                | [solution](<_369. Plus One Linked List.md>)                                                        | c                                | Jul 04, 2024    |
+| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Medium  | Daily          | [solution](<_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                                | Jun 26, 2024    |
+|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                             | Medium  |                | [solution](<_369. Plus One Linked List.md>)                                                        | c                                | Jul 04, 2024    |
 |  100 | [Same Tree](<https://leetcode.com/problems/same-tree>)                                                                                                                                   | Easy    | B75, N150      | [solution](<_100. Same Tree.md>)                                                                   | py                               | Jul 03, 2024    |
-| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Easy    |                | [solution](<_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                               | Jun 07, 2024    |
-| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                                     | Easy    |                | [solution](<_1249. Minimum Remove to Make Valid Parentheses.md>)                                   | py                               | Jun 10, 2024    |
-|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Easy    | N150           | [solution](<_853. Car Fleet.md>)                                                                   | py                               | Jun 14, 2024    |
-|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Easy    | N150           | [solution](<_74. Search a 2D Matrix.md>)                                                           | py                               | Jun 15, 2024    |
-| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                                                 | Easy    |                | [solution](<_1161. Maximum Level Sum of a Binary Tree.md>)                                         | py                               | Jul 17, 2024    |
-| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Easy    | Daily          | [solution](<_1052. Grumpy Bookstore Owner.md>)                                                     | py                               | Jun 24, 2024    |
-|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Easy    |                | [solution](<_540. Single Element in a Sorted Array.md>)                                            | py                               | Jul 05, 2024    |
-|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                                         | Easy    | B75, N150      | [solution](<_647. Palindromic Substrings.md>)                                                      | py                               | Jul 05, 2024    |
-|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Easy    | B75, N150      | [solution](<_3. Longest Substring Without Repeating Characters.md>)                                | java                             | May 22, 2024    |
+| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Medium  |                | [solution](<_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                               | Jun 07, 2024    |
+| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                                     | Medium  |                | [solution](<_1249. Minimum Remove to Make Valid Parentheses.md>)                                   | py                               | Jun 10, 2024    |
+|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Medium  | N150           | [solution](<_853. Car Fleet.md>)                                                                   | py                               | Jun 14, 2024    |
+|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Medium  | N150           | [solution](<_74. Search a 2D Matrix.md>)                                                           | py                               | Jun 15, 2024    |
+| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                                                 | Medium  |                | [solution](<_1161. Maximum Level Sum of a Binary Tree.md>)                                         | py                               | Jul 17, 2024    |
+| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Medium  | Daily          | [solution](<_1052. Grumpy Bookstore Owner.md>)                                                     | py                               | Jun 24, 2024    |
+|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Medium  |                | [solution](<_540. Single Element in a Sorted Array.md>)                                            | py                               | Jul 05, 2024    |
+|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                                         | Medium  | B75, N150      | [solution](<_647. Palindromic Substrings.md>)                                                      | py                               | Jul 05, 2024    |
+|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Medium  | B75, N150      | [solution](<_3. Longest Substring Without Repeating Characters.md>)                                | java                             | May 22, 2024    |
 | 1502 | [Can Make Arithmetic Progression From Sequence](<https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence>)                                                           | Easy    |                | [solution](<_1502. Can Make Arithmetic Progression From Sequence.md>)                              | c, py                            | Jun 04, 2024    |
 |   70 | [Climbing Stairs](<https://leetcode.com/problems/climbing-stairs>)                                                                                                                       | Easy    | B75, N150      | [solution](<_70. Climbing Stairs.md>)                                                              | py                               | May 22, 2024    |
 |  118 | [Pascal's Triangle](<https://leetcode.com/problems/pascals-triangle>)                                                                                                                    | Easy    |                | [solution](<_118. Pascal's Triangle.md>)                                                           | py                               | May 22, 2024    |
-| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                             | Easy    |                | [solution](<_2816. Double a Number Represented as a Linked List.md>)                               | c                                | Jul 04, 2024    |
-|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                                             | Easy    | N150           | [solution](<_22. Generate Parentheses.md>)                                                         | py                               | Jun 13, 2024    |
-| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                                         | Easy    |                | [solution](<_1551. Minimum Operations to Make Array Equal.md>)                                     | c, java, js, kt, py, rb, rs      | Jun 13, 2024    |
+| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                             | Medium  |                | [solution](<_2816. Double a Number Represented as a Linked List.md>)                               | c                                | Jul 04, 2024    |
+|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                                             | Medium  | N150           | [solution](<_22. Generate Parentheses.md>)                                                         | py                               | Jun 13, 2024    |
+| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                                         | Medium  |                | [solution](<_1551. Minimum Operations to Make Array Equal.md>)                                     | c, java, js, kt, py, rb, rs      | Jun 13, 2024    |
 |   14 | [Longest Common Prefix](<https://leetcode.com/problems/longest-common-prefix>)                                                                                                           | Easy    |                | [solution](<_14. Longest Common Prefix.md>)                                                        | java                             | May 22, 2024    |
-| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Easy    |                | [solution](<_3043. Find the Length of the Longest Common Prefix.md>)                               | py                               | Jun 28, 2024    |
-| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Easy    |                | [solution](<_1381. Design a Stack With Increment Operation.md>)                                    | py                               | Jul 06, 2024    |
-| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                                           | Easy    |                | [solution](<_1669. Merge In Between Linked Lists.md>)                                              | c                                | Jun 24, 2024    |
+| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Medium  |                | [solution](<_3043. Find the Length of the Longest Common Prefix.md>)                               | py                               | Jun 28, 2024    |
+| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Medium  |                | [solution](<_1381. Design a Stack With Increment Operation.md>)                                    | py                               | Jul 06, 2024    |
+| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                                           | Medium  |                | [solution](<_1669. Merge In Between Linked Lists.md>)                                              | c                                | Jun 24, 2024    |
 | 1002 | [Find Common Characters](<https://leetcode.com/problems/find-common-characters>)                                                                                                         | Easy    | Daily          | [solution](<_1002. Find Common Characters.md>)                                                     | py                               | Jun 08, 2024    |
 |  206 | [Reverse Linked List](<https://leetcode.com/problems/reverse-linked-list>)                                                                                                               | Easy    | B75, N150      | [solution](<_206. Reverse Linked List.md>)                                                         | java                             | Jun 27, 2024    |
-| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                                 | Easy    | Weekly Premium | [solution](<_2083. Substrings That Begin and End With the Same Letter.md>)                         | c, py                            | Jun 10, 2024    |
-|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                                                     | Easy    |                | [solution](<_429. N-ary Tree Level Order Traversal.md>)                                            | py                               | Jul 04, 2024    |
-| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Easy    |                | [solution](<_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                               | Jun 28, 2024    |
-| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                               | Easy    |                | [solution](<_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                        | java                             | Jul 01, 2024    |
+| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                                 | Medium  | Weekly Premium | [solution](<_2083. Substrings That Begin and End With the Same Letter.md>)                         | c, py                            | Jun 10, 2024    |
+|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                                                     | Medium  |                | [solution](<_429. N-ary Tree Level Order Traversal.md>)                                            | py                               | Jul 04, 2024    |
+| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Medium  |                | [solution](<_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                               | Jun 28, 2024    |
+| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                               | Medium  |                | [solution](<_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                        | java                             | Jul 01, 2024    |
 |   27 | [Remove Element](<https://leetcode.com/problems/remove-element>)                                                                                                                         | Easy    |                | [solution](<_27. Remove Element.md>)                                                               | java, py                         | Jun 02, 2024    |
-|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Easy    | B75, N150      | [solution](<_57. Insert Interval.md>)                                                              | py                               | Jun 19, 2024    |
+|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Medium  | B75, N150      | [solution](<_57. Insert Interval.md>)                                                              | py                               | Jun 19, 2024    |
 |  226 | [Invert Binary Tree](<https://leetcode.com/problems/invert-binary-tree>)                                                                                                                 | Easy    | B75, N150      | [solution](<_226. Invert Binary Tree.md>)                                                          | py                               | Jul 03, 2024    |
-| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Easy    |                | [solution](<_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                             | Jun 22, 2024    |
-|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                                                         | Easy    | B75, N150      | [solution](<_235. Lowest Common Ancestor of a Binary Search Tree.md>)                              | py                               | Jul 04, 2024    |
-| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Easy    |                | [solution](<_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                             | Jun 22, 2024    |
+| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Medium  |                | [solution](<_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                             | Jun 22, 2024    |
+|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                                                         | Medium  | B75, N150      | [solution](<_235. Lowest Common Ancestor of a Binary Search Tree.md>)                              | py                               | Jul 04, 2024    |
+| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Medium  |                | [solution](<_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                             | Jun 22, 2024    |
 | 1046 | [Last Stone Weight](<https://leetcode.com/problems/last-stone-weight>)                                                                                                                   | Easy    | N150           | [solution](<_1046. Last Stone Weight.md>)                                                          | py                               | Jun 04, 2024    |
 | 1736 | [Latest Time by Replacing Hidden Digits](<https://leetcode.com/problems/latest-time-by-replacing-hidden-digits>)                                                                         | Easy    |                | [solution](<_1736. Latest Time by Replacing Hidden Digits.md>)                                     | c                                | Jun 03, 2024    |
-|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Easy    | Daily          | [solution](<_260. Single Number III.md>)                                                           | py                               | Jun 08, 2024    |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Easy    |                | [solution](<_654. Maximum Binary Tree.md>)                                                         | py                               | Jun 12, 2024    |
+|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Medium  | Daily          | [solution](<_260. Single Number III.md>)                                                           | py                               | Jun 08, 2024    |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Medium  |                | [solution](<_654. Maximum Binary Tree.md>)                                                         | py                               | Jun 12, 2024    |
 | 2942 | [Find Words Containing Character](<https://leetcode.com/problems/find-words-containing-character>)                                                                                       | Easy    |                | [solution](<_2942. Find Words Containing Character.md>)                                            | c                                | Jun 06, 2024    |
 | 1317 | [Convert Integer to the Sum of Two No-Zero Integers](<https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers>)                                                 | Easy    |                | [solution](<_1317. Convert Integer to the Sum of Two No-Zero Integers.md>)                         | c                                | Jun 04, 2024    |
 | 2620 | [Counter](<https://leetcode.com/problems/counter>)                                                                                                                                       | Easy    |                | [solution](<_2620. Counter.md>)                                                                    | js                               | Jul 09, 2024    |
-| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Easy    |                | [solution](<_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                               | Jun 07, 2024    |
-| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                                                                                   | Easy    |                | [solution](<_1783. Grand Slam Titles.md>)                                                          | sql                              | Jun 07, 2024    |
-| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)                 | Easy    |                | [solution](<_3106. Lexicographically Smallest String After Operations With Constraint.md>)         | py                               | Jun 29, 2024    |
-|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Easy    | N150           | [solution](<_287. Find the Duplicate Number.md>)                                                   | c                                | Jun 26, 2024    |
-| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Easy    |                | [solution](<_2352. Equal Row and Column Pairs.md>)                                                 | py                               | Jun 27, 2024    |
-| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Easy    | Contest        | [solution](<_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                               | Jul 07, 2024    |
-|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Easy    |                | [solution](<_503. Next Greater Element II.md>)                                                     | py                               | Jul 05, 2024    |
+| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Medium  |                | [solution](<_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                               | Jun 07, 2024    |
+| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                                                                                   | Medium  |                | [solution](<_1783. Grand Slam Titles.md>)                                                          | sql                              | Jun 07, 2024    |
+| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)                 | Medium  |                | [solution](<_3106. Lexicographically Smallest String After Operations With Constraint.md>)         | py                               | Jun 29, 2024    |
+|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Medium  | N150           | [solution](<_287. Find the Duplicate Number.md>)                                                   | c                                | Jun 26, 2024    |
+| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Medium  |                | [solution](<_2352. Equal Row and Column Pairs.md>)                                                 | py                               | Jun 27, 2024    |
+| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Medium  | Contest        | [solution](<_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                               | Jul 07, 2024    |
+|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Medium  |                | [solution](<_503. Next Greater Element II.md>)                                                     | py                               | Jul 05, 2024    |
 |  345 | [Reverse Vowels of a String](<https://leetcode.com/problems/reverse-vowels-of-a-string>)                                                                                                 | Easy    |                | [solution](<_345. Reverse Vowels of a String.md>)                                                  | py                               | May 23, 2024    |
 |  344 | [Reverse String](<https://leetcode.com/problems/reverse-string>)                                                                                                                         | Easy    | Daily          | [solution](<_344. Reverse String.md>)                                                              | java, py                         | Jun 02, 2024    |
-| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Easy    |                | [solution](<_2221. Find Triangular Sum of an Array.md>)                                            | c, java                          | Jun 27, 2024    |
+| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Medium  |                | [solution](<_2221. Find Triangular Sum of an Array.md>)                                            | c, java                          | Jun 27, 2024    |
 | 1550 | [Three Consecutive Odds](<https://leetcode.com/problems/three-consecutive-odds>)                                                                                                         | Easy    | Daily          | [solution](<_1550. Three Consecutive Odds.md>)                                                     | c, py                            | Jul 01, 2024    |
-|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Easy    | B75, N150      | [solution](<_56. Merge Intervals.md>)                                                              | py                               | Jun 19, 2024    |
-|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Easy    |                | [solution](<_849. Maximize Distance to Closest Person.md>)                                         | py                               | Jun 29, 2024    |
+|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Medium  | B75, N150      | [solution](<_56. Merge Intervals.md>)                                                              | py                               | Jun 19, 2024    |
+|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Medium  |                | [solution](<_849. Maximize Distance to Closest Person.md>)                                         | py                               | Jun 29, 2024    |
 | 2703 | [Return Length of Arguments Passed](<https://leetcode.com/problems/return-length-of-arguments-passed>)                                                                                   | Easy    |                | [solution](<_2703. Return Length of Arguments Passed.md>)                                          | js, ts                           | Jul 09, 2024    |
 | 1460 | [Make Two Arrays Equal by Reversing Subarrays](<https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays>)                                                             | Easy    |                | [solution](<_1460. Make Two Arrays Equal by Reversing Subarrays.md>)                               | c                                | Jun 04, 2024    |
-| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                                                       | Easy    |                | [solution](<_1973. Count Nodes Equal to Sum of Descendants.md>)                                    | c                                | Jun 23, 2024    |
-|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                                       | Easy    |                | [solution](<_651. 4 Keys Keyboard.md>)                                                             | py                               | May 29, 2024    |
+| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                                                       | Medium  |                | [solution](<_1973. Count Nodes Equal to Sum of Descendants.md>)                                    | c                                | Jun 23, 2024    |
+|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                                       | Medium  |                | [solution](<_651. 4 Keys Keyboard.md>)                                                             | py                               | May 29, 2024    |
 | 1768 | [Merge Strings Alternately](<https://leetcode.com/problems/merge-strings-alternately>)                                                                                                   | Easy    |                | [solution](<_1768. Merge Strings Alternately.md>)                                                  | java                             | Jul 01, 2024    |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Easy    | Daily          | [solution](<_826. Most Profit Assigning Work.md>)                                                  | py                               | Jun 18, 2024    |
-|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Easy    | Daily          | [solution](<_663. Equal Tree Partition.md>)                                                        | py                               | Jun 17, 2024    |
-|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Easy    |                | [solution](<_930. Binary Subarrays With Sum.md>)                                                   | py                               | Jun 22, 2024    |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Medium  | Daily          | [solution](<_826. Most Profit Assigning Work.md>)                                                  | py                               | Jun 18, 2024    |
+|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Medium  | Daily          | [solution](<_663. Equal Tree Partition.md>)                                                        | py                               | Jun 17, 2024    |
+|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Medium  |                | [solution](<_930. Binary Subarrays With Sum.md>)                                                   | py                               | Jun 22, 2024    |
 | 3110 | [Score of a String](<https://leetcode.com/problems/score-of-a-string>)                                                                                                                   | Easy    | Daily          | [solution](<_3110. Score of a String.md>)                                                          | java, py                         | Jun 01, 2024    |
 |  121 | [Best Time to Buy and Sell Stock](<https://leetcode.com/problems/best-time-to-buy-and-sell-stock>)                                                                                       | Easy    | B75, N150      | [solution](<_121. Best Time to Buy and Sell Stock.md>)                                             | py                               | Jul 03, 2024    |
-| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Easy    |                | [solution](<_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                         | Jun 24, 2024    |
+| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Medium  |                | [solution](<_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                         | Jun 24, 2024    |
 |  392 | [Is Subsequence](<https://leetcode.com/problems/is-subsequence>)                                                                                                                         | Easy    |                | [solution](<_392. Is Subsequence.md>)                                                              | java                             | Jun 22, 2024    |
-| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                                         | Easy    |                | [solution](<_2807. Insert Greatest Common Divisors in Linked List.md>)                             | py                               | Jun 13, 2024    |
-|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Easy    | N150           | [solution](<_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                               | Jun 14, 2024    |
+| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                                         | Medium  |                | [solution](<_2807. Insert Greatest Common Divisors in Linked List.md>)                             | py                               | Jun 13, 2024    |
+|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Medium  | N150           | [solution](<_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                               | Jun 14, 2024    |
 | 2634 | [Filter Elements from Array](<https://leetcode.com/problems/filter-elements-from-array>)                                                                                                 | Easy    |                | [solution](<_2634. Filter Elements from Array.md>)                                                 | js                               | Jul 09, 2024    |
-|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Easy    |                | [solution](<_189. Rotate Array.md>)                                                                | py                               | Jun 02, 2024    |
-| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Easy    |                | [solution](<_1564. Put Boxes Into the Warehouse I.md>)                                             | py                               | Jun 15, 2024    |
-| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Easy    | Weekly Premium | [solution](<_1885. Count Pairs in Two Arrays.md>)                                                  | py                               | Jun 08, 2024    |
-|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Easy    | Daily          | [solution](<_945. Minimum Increment to Make Array Unique.md>)                                      | py                               | Jun 14, 2024    |
+|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Medium  |                | [solution](<_189. Rotate Array.md>)                                                                | py                               | Jun 02, 2024    |
+| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Medium  |                | [solution](<_1564. Put Boxes Into the Warehouse I.md>)                                             | py                               | Jun 15, 2024    |
+| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Medium  | Weekly Premium | [solution](<_1885. Count Pairs in Two Arrays.md>)                                                  | py                               | Jun 08, 2024    |
+|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Medium  | Daily          | [solution](<_945. Minimum Increment to Make Array Unique.md>)                                      | py                               | Jun 14, 2024    |
 |  977 | [Squares of a Sorted Array](<https://leetcode.com/problems/squares-of-a-sorted-array>)                                                                                                   | Easy    |                | [solution](<_977. Squares of a Sorted Array.md>)                                                   | py                               | Jun 21, 2024    |
 | 1748 | [Sum of Unique Elements](<https://leetcode.com/problems/sum-of-unique-elements>)                                                                                                         | Easy    |                | [solution](<_1748. Sum of Unique Elements.md>)                                                     | c                                | Jun 06, 2024    |
 | 1436 | [Destination City](<https://leetcode.com/problems/destination-city>)                                                                                                                     | Easy    |                | [solution](<_1436. Destination City.md>)                                                           | java                             | Jun 01, 2024    |
 |  330 | [Patching Array](<https://leetcode.com/problems/patching-array>)                                                                                                                         | Hard    | Daily          | [solution](<_330. Patching Array.md>)                                                              | py                               | Jun 16, 2024    |
-| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                                                   | Easy    |                | [solution](<_1884. Egg Drop With 2 Eggs and N Floors.md>)                                          | c, java, js                      | Jul 11, 2024    |
+| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                                                   | Medium  |                | [solution](<_1884. Egg Drop With 2 Eggs and N Floors.md>)                                          | c, java, js                      | Jul 11, 2024    |
 | 3168 | Weekly Contest 400 - q1 - [Minimum Number of Chairs in a Waiting Room](<https://leetcode.com/problems/minimum-number-of-chairs-in-a-waiting-room>)                                       | Easy    | Contest        | [solution](<_3168. Minimum Number of Chairs in a Waiting Room.md>)                                 | py                               | Jul 07, 2024    |
-| 3228 | Weekly Contest 407 - q3 - [Maximum Number of Operations to Move Ones to the End](<https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end>)                   | Easy    | Contest        | [solution](<_3228. Maximum Number of Operations to Move Ones to the End.md>)                       | py                               | Jul 21, 2024    |
+| 3228 | Weekly Contest 407 - q3 - [Maximum Number of Operations to Move Ones to the End](<https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end>)                   | Medium  | Contest        | [solution](<_3228. Maximum Number of Operations to Move Ones to the End.md>)                       | py                               | Jul 21, 2024    |
 |  196 | [Delete Duplicate Emails](<https://leetcode.com/problems/delete-duplicate-emails>)                                                                                                       | Easy    |                | [solution](<_196. Delete Duplicate Emails.md>)                                                     | py, sql                          | Jun 07, 2024    |
-| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Easy    |                | [solution](<_2365. Task Scheduler II.md>)                                                          | py                               | Jun 29, 2024    |
+| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Medium  |                | [solution](<_2365. Task Scheduler II.md>)                                                          | py                               | Jun 29, 2024    |
 |  104 | [Maximum Depth of Binary Tree](<https://leetcode.com/problems/maximum-depth-of-binary-tree>)                                                                                             | Easy    | B75, N150      | [solution](<_104. Maximum Depth of Binary Tree.md>)                                                | py                               | Jul 04, 2024    |
-|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Easy    |                | [solution](<_451. Sort Characters By Frequency.md>)                                                | py                               | Jun 18, 2024    |
-| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                                       | Easy    |                | [solution](<_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)                    | c, java                          | Jun 22, 2024    |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Easy    | Daily          | [solution](<_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                               | Jun 08, 2024    |
+|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Medium  |                | [solution](<_451. Sort Characters By Frequency.md>)                                                | py                               | Jun 18, 2024    |
+| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                                       | Medium  |                | [solution](<_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)                    | c, java                          | Jun 22, 2024    |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Medium  | Daily          | [solution](<_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                               | Jun 08, 2024    |
 |   26 | [Remove Duplicates from Sorted Array](<https://leetcode.com/problems/remove-duplicates-from-sorted-array>)                                                                               | Easy    |                | [solution](<_26. Remove Duplicates from Sorted Array.md>)                                          | java                             | May 22, 2024    |
-| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                                 | Easy    |                | [solution](<_1657. Determine if Two Strings Are Close.md>)                                         | py                               | Jul 13, 2024    |
+| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                                 | Medium  |                | [solution](<_1657. Determine if Two Strings Are Close.md>)                                         | py                               | Jul 13, 2024    |
 | 2423 | [Remove Letter To Equalize Frequency](<https://leetcode.com/problems/remove-letter-to-equalize-frequency>)                                                                               | Easy    |                | [solution](<_2423. Remove Letter To Equalize Frequency.md>)                                        | py                               | Jun 17, 2024    |
 |  607 | [Sales Person](<https://leetcode.com/problems/sales-person>)                                                                                                                             | Easy    |                | [solution](<_607. Sales Person.md>)                                                                | sql                              | May 22, 2024    |
 | 2621 | [Sleep](<https://leetcode.com/problems/sleep>)                                                                                                                                           | Easy    |                | [solution](<_2621. Sleep.md>)                                                                      | js                               | Jul 09, 2024    |
-| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Easy    |                | [solution](<_1282. Group the People Given the Group Size They Belong To.md>)                       | py                               | Jun 28, 2024    |
-|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                                       | Easy    | N150           | [solution](<_7. Reverse Integer.md>)                                                               | py                               | May 29, 2024    |
+| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Medium  |                | [solution](<_1282. Group the People Given the Group Size They Belong To.md>)                       | py                               | Jun 28, 2024    |
+|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                                       | Medium  | N150           | [solution](<_7. Reverse Integer.md>)                                                               | py                               | May 29, 2024    |
 |  217 | [Contains Duplicate](<https://leetcode.com/problems/contains-duplicate>)                                                                                                                 | Easy    | B75, N150      | [solution](<_217. Contains Duplicate.md>)                                                          | py                               | Jun 12, 2024    |
 |  175 | [Combine Two Tables](<https://leetcode.com/problems/combine-two-tables>)                                                                                                                 | Easy    |                | [solution](<_175. Combine Two Tables.md>)                                                          | py, sql                          | May 22, 2024    |
-|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Easy    |                | [solution](<_848. Shifting Letters.md>)                                                            | py                               | Jun 29, 2024    |
-| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                                                 | Easy    |                | [solution](<_1641. Count Sorted Vowel Strings.md>)                                                 | c, cpp, java                     | Jun 24, 2024    |
+|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Medium  |                | [solution](<_848. Shifting Letters.md>)                                                            | py                               | Jun 29, 2024    |
+| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                                                 | Medium  |                | [solution](<_1641. Count Sorted Vowel Strings.md>)                                                 | c, cpp, java                     | Jun 24, 2024    |
 | 2455 | [Average Value of Even Numbers That Are Divisible by Three](<https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three>)                                   | Easy    |                | [solution](<_2455. Average Value of Even Numbers That Are Divisible by Three.md>)                  | java                             | Jul 04, 2024    |
 | 3184 | Weekly Contest 402 - q1 - [Count Pairs That Form a Complete Day I](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-i>)                                               | Easy    | Contest        | [solution](<_3184. Count Pairs That Form a Complete Day I.md>)                                     | py                               | Jul 07, 2024    |
 | 3226 | Weekly Contest 407 - q1 - [Number of Bit Changes to Make Two Integers Equal](<https://leetcode.com/problems/number-of-bit-changes-to-make-two-integers-equal>)                           | Easy    | Contest        | [solution](<_3226. Number of Bit Changes to Make Two Integers Equal.md>)                           | py                               | Jul 21, 2024    |
 | 2395 | [Find Subarrays With Equal Sum](<https://leetcode.com/problems/find-subarrays-with-equal-sum>)                                                                                           | Easy    |                | [solution](<_2395. Find Subarrays With Equal Sum.md>)                                              | py                               | May 31, 2024    |
-| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Easy    |                | [solution](<_1762. Buildings With an Ocean View.md>)                                               | py                               | Jun 10, 2024    |
+| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Medium  |                | [solution](<_1762. Buildings With an Ocean View.md>)                                               | py                               | Jun 10, 2024    |
 |  867 | [Transpose Matrix](<https://leetcode.com/problems/transpose-matrix>)                                                                                                                     | Easy    |                | [solution](<_867. Transpose Matrix.md>)                                                            | py                               | Jun 15, 2024    |
 | 1844 | [Replace All Digits with Characters](<https://leetcode.com/problems/replace-all-digits-with-characters>)                                                                                 | Easy    |                | [solution](<_1844. Replace All Digits with Characters.md>)                                         | py                               | Jun 29, 2024    |
 | 3178 | Weekly Contest 401 - q1 - [Find the Child Who Has the Ball After K Seconds](<https://leetcode.com/problems/find-the-child-who-has-the-ball-after-k-seconds>)                             | Easy    | Contest        | [solution](<_3178. Find the Child Who Has the Ball After K Seconds.md>)                            | py                               | Jul 07, 2024    |
 |  191 | [Number of 1 Bits](<https://leetcode.com/problems/number-of-1-bits>)                                                                                                                     | Easy    | B75, N150      | [solution](<_191. Number of 1 Bits.md>)                                                            | py                               | Jul 03, 2024    |
 | 3074 | [Apple Redistribution into Boxes](<https://leetcode.com/problems/apple-redistribution-into-boxes>)                                                                                       | Easy    |                | [solution](<_3074. Apple Redistribution into Boxes.md>)                                            | py                               | May 23, 2024    |
 | 1030 | [Matrix Cells in Distance Order](<https://leetcode.com/problems/matrix-cells-in-distance-order>)                                                                                         | Easy    |                | [solution](<_1030. Matrix Cells in Distance Order.md>)                                             | py                               | Jun 04, 2024    |
-|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                                                                                   | Easy    |                | [solution](<_184. Department Highest Salary.md>)                                                   | sql                              | Jun 07, 2024    |
-| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                             | Easy    |                | [solution](<_2268. Minimum Number of Keypresses.md>)                                               | py                               | Jul 05, 2024    |
+|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                                                                                   | Medium  |                | [solution](<_184. Department Highest Salary.md>)                                                   | sql                              | Jun 07, 2024    |
+| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                             | Medium  |                | [solution](<_2268. Minimum Number of Keypresses.md>)                                               | py                               | Jul 05, 2024    |
 |    9 | [Palindrome Number](<https://leetcode.com/problems/palindrome-number>)                                                                                                                   | Easy    |                | [solution](<_9. Palindrome Number.md>)                                                             | java                             | May 22, 2024    |
 | 2011 | [Final Value of Variable After Performing Operations](<https://leetcode.com/problems/final-value-of-variable-after-performing-operations>)                                               | Easy    |                | [solution](<_2011. Final Value of Variable After Performing Operations.md>)                        | c                                | Jun 03, 2024    |
 | 2678 | [Number of Senior Citizens](<https://leetcode.com/problems/number-of-senior-citizens>)                                                                                                   | Easy    |                | [solution](<_2678. Number of Senior Citizens.md>)                                                  | java                             | May 22, 2024    |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Easy    |                | [solution](<_692. Top K Frequent Words.md>)                                                        | py                               | Jun 09, 2024    |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Medium  |                | [solution](<_692. Top K Frequent Words.md>)                                                        | py                               | Jun 09, 2024    |
 | 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                                                             | Easy    |                | [solution](<_2389. Longest Subsequence With Limited Sum.md>)                                       | py                               | Jun 01, 2024    |
 | 2796 | [Repeat String](<https://leetcode.com/problems/repeat-string>)                                                                                                                           | Easy    |                | [solution](<_2796. Repeat String.md>)                                                              | js                               | Jul 09, 2024    |
 |  136 | [Single Number](<https://leetcode.com/problems/single-number>)                                                                                                                           | Easy    | N150           | [solution](<_136. Single Number.md>)                                                               | py                               | Jul 03, 2024    |
-| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Easy    |                | [solution](<_1561. Maximum Number of Coins You Can Get.md>)                                        | py                               | Jun 23, 2024    |
+| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Medium  |                | [solution](<_1561. Maximum Number of Coins You Can Get.md>)                                        | py                               | Jun 23, 2024    |
 | 2248 | [Intersection of Multiple Arrays](<https://leetcode.com/problems/intersection-of-multiple-arrays>)                                                                                       | Easy    |                | [solution](<_2248. Intersection of Multiple Arrays.md>)                                            | py                               | May 31, 2024    |
 | 2619 | [Array Prototype Last](<https://leetcode.com/problems/array-prototype-last>)                                                                                                             | Easy    |                | [solution](<_2619. Array Prototype Last.md>)                                                       | js                               | Jul 10, 2024    |
-| 3227 | Weekly Contest 407 - q2 - [Vowels Game in a String](<https://leetcode.com/problems/vowels-game-in-a-string>)                                                                             | Easy    | Contest        | [solution](<_3227. Vowels Game in a String.md>)                                                    | py                               | Jul 21, 2024    |
+| 3227 | Weekly Contest 407 - q2 - [Vowels Game in a String](<https://leetcode.com/problems/vowels-game-in-a-string>)                                                                             | Medium  | Contest        | [solution](<_3227. Vowels Game in a String.md>)                                                    | py                               | Jul 21, 2024    |
 |  746 | [Min Cost Climbing Stairs](<https://leetcode.com/problems/min-cost-climbing-stairs>)                                                                                                     | Easy    | N150           | [solution](<_746. Min Cost Climbing Stairs.md>)                                                    | py                               | Jul 05, 2024    |
 | 1018 | [Binary Prefix Divisible By 5](<https://leetcode.com/problems/binary-prefix-divisible-by-5>)                                                                                             | Easy    |                | [solution](<_1018. Binary Prefix Divisible By 5.md>)                                               | py                               | Jul 04, 2024    |
 | 3194 | Weekly Contest 403 - q1 - [Minimum Average of Smallest and Largest Elements](<https://leetcode.com/problems/minimum-average-of-smallest-and-largest-elements>)                           | Easy    | Contest        | [solution](<_3194. Minimum Average of Smallest and Largest Elements.md>)                           | py                               | Jul 07, 2024    |
 | 3190 | [Find Minimum Operations to Make All Elements Divisible by Three](<https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three>)                       | Easy    |                | [solution](<_3190. Find Minimum Operations to Make All Elements Divisible by Three.md>)            | java                             | Jun 22, 2024    |
 | 2635 | [Apply Transform Over Each Element in Array](<https://leetcode.com/problems/apply-transform-over-each-element-in-array>)                                                                 | Easy    |                | [solution](<_2635. Apply Transform Over Each Element in Array.md>)                                 | js                               | Jul 09, 2024    |
-| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Easy    |                | [solution](<_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                               | Jun 23, 2024    |
+| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Medium  |                | [solution](<_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                               | Jun 23, 2024    |
 | 1822 | [Sign of the Product of an Array](<https://leetcode.com/problems/sign-of-the-product-of-an-array>)                                                                                       | Easy    |                | [solution](<_1822. Sign of the Product of an Array.md>)                                            | c                                | Jun 06, 2024    |
-|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                                                                                 | Easy    |                | [solution](<_177. Nth Highest Salary.md>)                                                          | sql                              | May 22, 2024    |
+|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                                                                                 | Medium  |                | [solution](<_177. Nth Highest Salary.md>)                                                          | sql                              | May 22, 2024    |
 | 2886 | [Change Data Type](<https://leetcode.com/problems/change-data-type>)                                                                                                                     | Easy    |                | [solution](<_2886. Change Data Type.md>)                                                           | py                               | May 30, 2024    |
 | 2626 | [Array Reduce Transformation](<https://leetcode.com/problems/array-reduce-transformation>)                                                                                               | Easy    |                | [solution](<_2626. Array Reduce Transformation.md>)                                                | js                               | Jul 09, 2024    |
-|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Easy    | B75, N150      | [solution](<_198. House Robber.md>)                                                                | py                               | Jul 17, 2024    |
+|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Medium  | B75, N150      | [solution](<_198. House Robber.md>)                                                                | py                               | Jul 17, 2024    |
 | 2667 | [Create Hello World Function](<https://leetcode.com/problems/create-hello-world-function>)                                                                                               | Easy    |                | [solution](<_2667. Create Hello World Function.md>)                                                | js                               | Jul 09, 2024    |
 |   28 | [Find the Index of the First Occurrence in a String](<https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string>)                                                 | Easy    |                | [solution](<_28. Find the Index of the First Occurrence in a String.md>)                           | py                               | May 22, 2024    |
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Easy    | N150           | [solution](<_973. K Closest Points to Origin.md>)                                                  | py                               | Jun 29, 2024    |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Medium  | N150           | [solution](<_973. K Closest Points to Origin.md>)                                                  | py                               | Jun 29, 2024    |
 |   69 | [Sqrt(x)](<https://leetcode.com/problems/sqrtx>)                                                                                                                                         | Easy    |                | [solution](<_69. Sqrt(x).md>)                                                                      | py                               | Jun 07, 2024    |
-|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                                                                           | Easy    |                | [solution](<_176. Second Highest Salary.md>)                                                       | sql                              | May 22, 2024    |
+|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                                                                           | Medium  |                | [solution](<_176. Second Highest Salary.md>)                                                       | sql                              | May 22, 2024    |
 |  509 | [Fibonacci Number](<https://leetcode.com/problems/fibonacci-number>)                                                                                                                     | Easy    |                | [solution](<_509. Fibonacci Number.md>)                                                            | c                                | Jun 17, 2024    |
 |  197 | [Rising Temperature](<https://leetcode.com/problems/rising-temperature>)                                                                                                                 | Easy    |                | [solution](<_197. Rising Temperature.md>)                                                          | sql                              | May 22, 2024    |
 | 2894 | [Divisible and Non-divisible Sums Difference](<https://leetcode.com/problems/divisible-and-non-divisible-sums-difference>)                                                               | Easy    |                | [solution](<_2894. Divisible and Non-divisible Sums Difference.md>)                                | py                               | May 22, 2024    |
diff --git a/markdowns/Questions_By_Recent.md b/markdowns/Questions_By_Recent.md
index 23e18539..5324f3ba 100644
--- a/markdowns/Questions_By_Recent.md
+++ b/markdowns/Questions_By_Recent.md
@@ -6,373 +6,373 @@ Calculations are based on the date of the first solve.
 
 |    # | Title                                                                                                                                                                                    | Level   | Cats           | Solution                                                                                           | Languages                        | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:---------------------------------------------------------------------------------------------------|:---------------------------------|:----------------|
-| 3228 | Weekly Contest 407 - q3 - [Maximum Number of Operations to Move Ones to the End](<https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end>)                   | Easy    | Contest        | [solution](<_3228. Maximum Number of Operations to Move Ones to the End.md>)                       | py                               | Jul 21, 2024    |
-| 3227 | Weekly Contest 407 - q2 - [Vowels Game in a String](<https://leetcode.com/problems/vowels-game-in-a-string>)                                                                             | Easy    | Contest        | [solution](<_3227. Vowels Game in a String.md>)                                                    | py                               | Jul 21, 2024    |
+| 3228 | Weekly Contest 407 - q3 - [Maximum Number of Operations to Move Ones to the End](<https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end>)                   | Medium  | Contest        | [solution](<_3228. Maximum Number of Operations to Move Ones to the End.md>)                       | py                               | Jul 21, 2024    |
+| 3227 | Weekly Contest 407 - q2 - [Vowels Game in a String](<https://leetcode.com/problems/vowels-game-in-a-string>)                                                                             | Medium  | Contest        | [solution](<_3227. Vowels Game in a String.md>)                                                    | py                               | Jul 21, 2024    |
 | 3229 | Weekly Contest 407 - q4 - [Minimum Operations to Make Array Equal to Target](<https://leetcode.com/problems/minimum-operations-to-make-array-equal-to-target>)                           | Hard    | Contest        | [solution](<_3229. Minimum Operations to Make Array Equal to Target.md>)                           | py                               | Jul 21, 2024    |
 | 3226 | Weekly Contest 407 - q1 - [Number of Bit Changes to Make Two Integers Equal](<https://leetcode.com/problems/number-of-bit-changes-to-make-two-integers-equal>)                           | Easy    | Contest        | [solution](<_3226. Number of Bit Changes to Make Two Integers Equal.md>)                           | py                               | Jul 21, 2024    |
-| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Easy    | Daily          | [solution](<_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                               | Jul 20, 2024    |
+| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Medium  | Daily          | [solution](<_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                               | Jul 20, 2024    |
 | 1380 | [Lucky Numbers in a Matrix](<https://leetcode.com/problems/lucky-numbers-in-a-matrix>)                                                                                                   | Easy    | Daily          | [solution](<_1380. Lucky Numbers in a Matrix.md>)                                                  | js, py                           | Jul 19, 2024    |
-| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Easy    | Daily          | [solution](<_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                               | Jul 18, 2024    |
-| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                                                 | Easy    |                | [solution](<_1161. Maximum Level Sum of a Binary Tree.md>)                                         | py                               | Jul 17, 2024    |
+| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                                                       | Medium  | Daily          | [solution](<_1530. Number of Good Leaf Nodes Pairs.md>)                                            | py                               | Jul 18, 2024    |
+| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                                                 | Medium  |                | [solution](<_1161. Maximum Level Sum of a Binary Tree.md>)                                         | py                               | Jul 17, 2024    |
 |  700 | [Search in a Binary Search Tree](<https://leetcode.com/problems/search-in-a-binary-search-tree>)                                                                                         | Easy    |                | [solution](<_700. Search in a Binary Search Tree.md>)                                              | c, java, py                      | Jul 17, 2024    |
-|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Easy    | B75, N150      | [solution](<_198. House Robber.md>)                                                                | py                               | Jul 17, 2024    |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Easy    | Daily          | [solution](<_1110. Delete Nodes And Return Forest.md>)                                             | py                               | Jul 17, 2024    |
-|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Easy    | B75, N150      | [solution](<_39. Combination Sum.md>)                                                              | py                               | Jul 16, 2024    |
-| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Easy    | Daily          | [solution](<_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                               | Jul 16, 2024    |
-|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                                                       | Easy    | B75            | [solution](<_236. Lowest Common Ancestor of a Binary Tree.md>)                                     | py                               | Jul 15, 2024    |
-| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                                         | Easy    | Weekly Premium | [solution](<_1740. Find Distance in a Binary Tree.md>)                                             | py                               | Jul 15, 2024    |
-| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Easy    | Daily          | [solution](<_2196. Create Binary Tree From Descriptions.md>)                                       | py                               | Jul 15, 2024    |
-|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Easy    |                | [solution](<_735. Asteroid Collision.md>)                                                          | py                               | Jul 14, 2024    |
-| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                                 | Easy    |                | [solution](<_2211. Count Collisions on a Road.md>)                                                 | py                               | Jul 14, 2024    |
-|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                                           | Easy    | N150           | [solution](<_17. Letter Combinations of a Phone Number.md>)                                        | java                             | Jul 14, 2024    |
+|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Medium  | B75, N150      | [solution](<_198. House Robber.md>)                                                                | py                               | Jul 17, 2024    |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Medium  | Daily          | [solution](<_1110. Delete Nodes And Return Forest.md>)                                             | py                               | Jul 17, 2024    |
+|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Medium  | B75, N150      | [solution](<_39. Combination Sum.md>)                                                              | py                               | Jul 16, 2024    |
+| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                                 | Medium  | Daily          | [solution](<_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)                 | py                               | Jul 16, 2024    |
+|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                                                       | Medium  | B75            | [solution](<_236. Lowest Common Ancestor of a Binary Tree.md>)                                     | py                               | Jul 15, 2024    |
+| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                                         | Medium  | Weekly Premium | [solution](<_1740. Find Distance in a Binary Tree.md>)                                             | py                               | Jul 15, 2024    |
+| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Medium  | Daily          | [solution](<_2196. Create Binary Tree From Descriptions.md>)                                       | py                               | Jul 15, 2024    |
+|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Medium  |                | [solution](<_735. Asteroid Collision.md>)                                                          | py                               | Jul 14, 2024    |
+| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                                 | Medium  |                | [solution](<_2211. Count Collisions on a Road.md>)                                                 | py                               | Jul 14, 2024    |
+|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                                           | Medium  | N150           | [solution](<_17. Letter Combinations of a Phone Number.md>)                                        | java                             | Jul 14, 2024    |
 |  726 | [Number of Atoms](<https://leetcode.com/problems/number-of-atoms>)                                                                                                                       | Hard    | Daily          | [solution](<_726. Number of Atoms.md>)                                                             | py                               | Jul 14, 2024    |
-| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                                 | Easy    |                | [solution](<_1657. Determine if Two Strings Are Close.md>)                                         | py                               | Jul 13, 2024    |
+| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                                 | Medium  |                | [solution](<_1657. Determine if Two Strings Are Close.md>)                                         | py                               | Jul 13, 2024    |
 | 2751 | [Robot Collisions](<https://leetcode.com/problems/robot-collisions>)                                                                                                                     | Hard    | Daily          | [solution](<_2751. Robot Collisions.md>)                                                           | py                               | Jul 13, 2024    |
-| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                                           | Easy    |                | [solution](<_1461. Check If a String Contains All Binary Codes of Size K.md>)                      | py                               | Jul 12, 2024    |
-| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Easy    | Daily          | [solution](<_1717. Maximum Score From Removing Substrings.md>)                                     | py                               | Jul 12, 2024    |
-|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Easy    |                | [solution](<_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py         | Jul 11, 2024    |
-| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                                                   | Easy    |                | [solution](<_1884. Egg Drop With 2 Eggs and N Floors.md>)                                          | c, java, js                      | Jul 11, 2024    |
+| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                                           | Medium  |                | [solution](<_1461. Check If a String Contains All Binary Codes of Size K.md>)                      | py                               | Jul 12, 2024    |
+| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                                         | Medium  | Daily          | [solution](<_1717. Maximum Score From Removing Substrings.md>)                                     | py                               | Jul 12, 2024    |
+|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Medium  |                | [solution](<_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py         | Jul 11, 2024    |
+| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                                                   | Medium  |                | [solution](<_1884. Egg Drop With 2 Eggs and N Floors.md>)                                          | c, java, js                      | Jul 11, 2024    |
 |  895 | [Maximum Frequency Stack](<https://leetcode.com/problems/maximum-frequency-stack>)                                                                                                       | Hard    |                | [solution](<_895. Maximum Frequency Stack.md>)                                                     | java, py                         | Jul 11, 2024    |
-| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Easy    | Daily          | [solution](<_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                               | Jul 11, 2024    |
+| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                                               | Medium  | Daily          | [solution](<_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                        | py                               | Jul 11, 2024    |
 | 2619 | [Array Prototype Last](<https://leetcode.com/problems/array-prototype-last>)                                                                                                             | Easy    |                | [solution](<_2619. Array Prototype Last.md>)                                                       | js                               | Jul 10, 2024    |
 | 1598 | [Crawler Log Folder](<https://leetcode.com/problems/crawler-log-folder>)                                                                                                                 | Easy    | Daily          | [solution](<_1598. Crawler Log Folder.md>)                                                         | c, js                            | Jul 10, 2024    |
 | 2796 | [Repeat String](<https://leetcode.com/problems/repeat-string>)                                                                                                                           | Easy    |                | [solution](<_2796. Repeat String.md>)                                                              | js                               | Jul 09, 2024    |
-| 2624 | [Snail Traversal](<https://leetcode.com/problems/snail-traversal>)                                                                                                                       | Easy    |                | [solution](<_2624. Snail Traversal.md>)                                                            | js                               | Jul 09, 2024    |
+| 2624 | [Snail Traversal](<https://leetcode.com/problems/snail-traversal>)                                                                                                                       | Medium  |                | [solution](<_2624. Snail Traversal.md>)                                                            | js                               | Jul 09, 2024    |
 | 2723 | [Add Two Promises](<https://leetcode.com/problems/add-two-promises>)                                                                                                                     | Easy    |                | [solution](<_2723. Add Two Promises.md>)                                                           | js                               | Jul 09, 2024    |
 | 2626 | [Array Reduce Transformation](<https://leetcode.com/problems/array-reduce-transformation>)                                                                                               | Easy    |                | [solution](<_2626. Array Reduce Transformation.md>)                                                | js                               | Jul 09, 2024    |
-| 2623 | [Memoize](<https://leetcode.com/problems/memoize>)                                                                                                                                       | Easy    |                | [solution](<_2623. Memoize.md>)                                                                    | js                               | Jul 09, 2024    |
+| 2623 | [Memoize](<https://leetcode.com/problems/memoize>)                                                                                                                                       | Medium  |                | [solution](<_2623. Memoize.md>)                                                                    | js                               | Jul 09, 2024    |
 | 2703 | [Return Length of Arguments Passed](<https://leetcode.com/problems/return-length-of-arguments-passed>)                                                                                   | Easy    |                | [solution](<_2703. Return Length of Arguments Passed.md>)                                          | js, ts                           | Jul 09, 2024    |
 | 2666 | [Allow One Function Call](<https://leetcode.com/problems/allow-one-function-call>)                                                                                                       | Easy    |                | [solution](<_2666. Allow One Function Call.md>)                                                    | js                               | Jul 09, 2024    |
 | 2629 | [Function Composition](<https://leetcode.com/problems/function-composition>)                                                                                                             | Easy    |                | [solution](<_2629. Function Composition.md>)                                                       | js                               | Jul 09, 2024    |
 | 2621 | [Sleep](<https://leetcode.com/problems/sleep>)                                                                                                                                           | Easy    |                | [solution](<_2621. Sleep.md>)                                                                      | js                               | Jul 09, 2024    |
-| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Easy    | Daily          | [solution](<_1701. Average Waiting Time.md>)                                                       | js, py                           | Jul 09, 2024    |
+| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Medium  | Daily          | [solution](<_1701. Average Waiting Time.md>)                                                       | js, py                           | Jul 09, 2024    |
 | 2704 | [To Be Or Not To Be](<https://leetcode.com/problems/to-be-or-not-to-be>)                                                                                                                 | Easy    |                | [solution](<_2704. To Be Or Not To Be.md>)                                                         | js                               | Jul 09, 2024    |
 | 2667 | [Create Hello World Function](<https://leetcode.com/problems/create-hello-world-function>)                                                                                               | Easy    |                | [solution](<_2667. Create Hello World Function.md>)                                                | js                               | Jul 09, 2024    |
 | 2665 | [Counter II](<https://leetcode.com/problems/counter-ii>)                                                                                                                                 | Easy    |                | [solution](<_2665. Counter II.md>)                                                                 | js                               | Jul 09, 2024    |
 | 2635 | [Apply Transform Over Each Element in Array](<https://leetcode.com/problems/apply-transform-over-each-element-in-array>)                                                                 | Easy    |                | [solution](<_2635. Apply Transform Over Each Element in Array.md>)                                 | js                               | Jul 09, 2024    |
 | 2634 | [Filter Elements from Array](<https://leetcode.com/problems/filter-elements-from-array>)                                                                                                 | Easy    |                | [solution](<_2634. Filter Elements from Array.md>)                                                 | js                               | Jul 09, 2024    |
 | 2620 | [Counter](<https://leetcode.com/problems/counter>)                                                                                                                                       | Easy    |                | [solution](<_2620. Counter.md>)                                                                    | js                               | Jul 09, 2024    |
-| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                                         | Easy    | Weekly Premium | [solution](<_1836. Remove Duplicates From an Unsorted Linked List.md>)                             | java, py                         | Jul 08, 2024    |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Easy    | Daily          | [solution](<_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py             | Jul 08, 2024    |
+| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                                         | Medium  | Weekly Premium | [solution](<_1836. Remove Duplicates From an Unsorted Linked List.md>)                             | java, py                         | Jul 08, 2024    |
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Medium  | Daily          | [solution](<_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py             | Jul 08, 2024    |
 | 3210 | Weekly Contest 405 - q1 - [Find the Encrypted String](<https://leetcode.com/problems/find-the-encrypted-string>)                                                                         | Easy    | Contest        | [solution](<_3210. Find the Encrypted String.md>)                                                  | py                               | Jul 07, 2024    |
-| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Easy    | Contest        | [solution](<_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                               | Jul 07, 2024    |
+| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Medium  | Contest        | [solution](<_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                               | Jul 07, 2024    |
 | 3213 | Weekly Contest 405 - q4 - [Construct String with Minimum Cost](<https://leetcode.com/problems/construct-string-with-minimum-cost>)                                                       | Hard    | Contest        | [solution](<_3213. Construct String with Minimum Cost.md>)                                         | py                               | Jul 07, 2024    |
-| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Easy    | Contest        | [solution](<_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                               | Jul 07, 2024    |
-| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Easy    | Contest        | [solution](<_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                               | Jul 07, 2024    |
+| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Medium  | Contest        | [solution](<_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                               | Jul 07, 2024    |
+| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Medium  | Contest        | [solution](<_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                               | Jul 07, 2024    |
 | 3194 | Weekly Contest 403 - q1 - [Minimum Average of Smallest and Largest Elements](<https://leetcode.com/problems/minimum-average-of-smallest-and-largest-elements>)                           | Easy    | Contest        | [solution](<_3194. Minimum Average of Smallest and Largest Elements.md>)                           | py                               | Jul 07, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Easy    | Contest        | [solution](<_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                               | Jul 07, 2024    |
-| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Easy    | Contest        | [solution](<_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                               | Jul 07, 2024    |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Medium  | Contest        | [solution](<_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                               | Jul 07, 2024    |
+| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Medium  | Contest        | [solution](<_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                               | Jul 07, 2024    |
 | 3184 | Weekly Contest 402 - q1 - [Count Pairs That Form a Complete Day I](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-i>)                                               | Easy    | Contest        | [solution](<_3184. Count Pairs That Form a Complete Day I.md>)                                     | py                               | Jul 07, 2024    |
-| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Easy    | Contest        | [solution](<_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                            | Jul 07, 2024    |
-| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Easy    | Contest        | [solution](<_3179. Find the N-th Value After K Seconds.md>)                                        | py                               | Jul 07, 2024    |
+| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Medium  | Contest        | [solution](<_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                            | Jul 07, 2024    |
+| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Medium  | Contest        | [solution](<_3179. Find the N-th Value After K Seconds.md>)                                        | py                               | Jul 07, 2024    |
 | 3178 | Weekly Contest 401 - q1 - [Find the Child Who Has the Ball After K Seconds](<https://leetcode.com/problems/find-the-child-who-has-the-ball-after-k-seconds>)                             | Easy    | Contest        | [solution](<_3178. Find the Child Who Has the Ball After K Seconds.md>)                            | py                               | Jul 07, 2024    |
-| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Easy    | Contest        | [solution](<_3169. Count Days Without Meetings.md>)                                                | py                               | Jul 07, 2024    |
+| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Medium  | Contest        | [solution](<_3169. Count Days Without Meetings.md>)                                                | py                               | Jul 07, 2024    |
 | 3168 | Weekly Contest 400 - q1 - [Minimum Number of Chairs in a Waiting Room](<https://leetcode.com/problems/minimum-number-of-chairs-in-a-waiting-room>)                                       | Easy    | Contest        | [solution](<_3168. Minimum Number of Chairs in a Waiting Room.md>)                                 | py                               | Jul 07, 2024    |
-| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Easy    | Contest        | [solution](<_3175. Find The First Player to win K Games in a Row.md>)                              | py                               | Jul 07, 2024    |
+| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Medium  | Contest        | [solution](<_3175. Find The First Player to win K Games in a Row.md>)                              | py                               | Jul 07, 2024    |
 | 3174 | Biweekly Contest 132 - q1 - [Clear Digits](<https://leetcode.com/problems/clear-digits>)                                                                                                 | Easy    | Contest        | [solution](<_3174. Clear Digits.md>)                                                               | py                               | Jul 07, 2024    |
-| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)                               | Easy    | Contest        | [solution](<_3211. Generate Binary Strings Without Adjacent Zeros.md>)                             | js, py                           | Jul 07, 2024    |
+| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)                               | Medium  | Contest        | [solution](<_3211. Generate Binary Strings Without Adjacent Zeros.md>)                             | js, py                           | Jul 07, 2024    |
 | 1518 | [Water Bottles](<https://leetcode.com/problems/water-bottles>)                                                                                                                           | Easy    | Daily          | [solution](<_1518. Water Bottles.md>)                                                              | c, cpp, cs, java, js, py, ts     | Jul 07, 2024    |
-|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Easy    |                | [solution](<_622. Design Circular Queue.md>)                                                       | py                               | Jul 06, 2024    |
-|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Easy    | N150           | [solution](<_567. Permutation in String.md>)                                                       | py                               | Jul 06, 2024    |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Easy    |                | [solution](<_1472. Design Browser History.md>)                                                     | py                               | Jul 06, 2024    |
-| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Easy    |                | [solution](<_1381. Design a Stack With Increment Operation.md>)                                    | py                               | Jul 06, 2024    |
-|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Easy    |                | [solution](<_380. Insert Delete GetRandom O(1).md>)                                                | java                             | Jul 06, 2024    |
+|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Medium  |                | [solution](<_622. Design Circular Queue.md>)                                                       | py                               | Jul 06, 2024    |
+|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Medium  | N150           | [solution](<_567. Permutation in String.md>)                                                       | py                               | Jul 06, 2024    |
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Medium  |                | [solution](<_1472. Design Browser History.md>)                                                     | py                               | Jul 06, 2024    |
+| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Medium  |                | [solution](<_1381. Design a Stack With Increment Operation.md>)                                    | py                               | Jul 06, 2024    |
+|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Medium  |                | [solution](<_380. Insert Delete GetRandom O(1).md>)                                                | java                             | Jul 06, 2024    |
 |  381 | [Insert Delete GetRandom O(1) - Duplicates allowed](<https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed>)                                                       | Hard    |                | [solution](<_381. Insert Delete GetRandom O(1) - Duplicates allowed.md>)                           | java                             | Jul 06, 2024    |
-|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Easy    | B75, N150      | [solution](<_424. Longest Repeating Character Replacement.md>)                                     | py                               | Jul 06, 2024    |
+|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Medium  | B75, N150      | [solution](<_424. Longest Repeating Character Replacement.md>)                                     | py                               | Jul 06, 2024    |
 | 2582 | [Pass the Pillow](<https://leetcode.com/problems/pass-the-pillow>)                                                                                                                       | Easy    | Daily          | [solution](<_2582. Pass the Pillow.md>)                                                            | c, cpp, cs, java, js, py         | Jul 06, 2024    |
-|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Easy    |                | [solution](<_540. Single Element in a Sorted Array.md>)                                            | py                               | Jul 05, 2024    |
-|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Easy    |                | [solution](<_503. Next Greater Element II.md>)                                                     | py                               | Jul 05, 2024    |
-| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                             | Easy    |                | [solution](<_2268. Minimum Number of Keypresses.md>)                                               | py                               | Jul 05, 2024    |
-| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                                   | Easy    |                | [solution](<_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                                  | py                               | Jul 05, 2024    |
-|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                                           | Easy    |                | [solution](<_919. Complete Binary Tree Inserter.md>)                                               | py                               | Jul 05, 2024    |
-|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Easy    |                | [solution](<_794. Valid Tic-Tac-Toe State.md>)                                                     | py                               | Jul 05, 2024    |
-|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Easy    |                | [solution](<_348. Design Tic-Tac-Toe.md>)                                                          | py                               | Jul 05, 2024    |
-| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                                       | Easy    |                | [solution](<_3157. Find the Level of Tree with Minimum Sum.md>)                                    | py                               | Jul 05, 2024    |
-| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                                           | Easy    |                | [solution](<_1609. Even Odd Tree.md>)                                                              | py                               | Jul 05, 2024    |
-| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                                             | Easy    |                | [solution](<_1372. Longest ZigZag Path in a Binary Tree.md>)                                       | py                               | Jul 05, 2024    |
-| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Easy    | Daily          | [solution](<_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                    | Jul 05, 2024    |
+|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Medium  |                | [solution](<_540. Single Element in a Sorted Array.md>)                                            | py                               | Jul 05, 2024    |
+|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Medium  |                | [solution](<_503. Next Greater Element II.md>)                                                     | py                               | Jul 05, 2024    |
+| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                             | Medium  |                | [solution](<_2268. Minimum Number of Keypresses.md>)                                               | py                               | Jul 05, 2024    |
+| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                                   | Medium  |                | [solution](<_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                                  | py                               | Jul 05, 2024    |
+|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                                           | Medium  |                | [solution](<_919. Complete Binary Tree Inserter.md>)                                               | py                               | Jul 05, 2024    |
+|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Medium  |                | [solution](<_794. Valid Tic-Tac-Toe State.md>)                                                     | py                               | Jul 05, 2024    |
+|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Medium  |                | [solution](<_348. Design Tic-Tac-Toe.md>)                                                          | py                               | Jul 05, 2024    |
+| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                                       | Medium  |                | [solution](<_3157. Find the Level of Tree with Minimum Sum.md>)                                    | py                               | Jul 05, 2024    |
+| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                                           | Medium  |                | [solution](<_1609. Even Odd Tree.md>)                                                              | py                               | Jul 05, 2024    |
+| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                                             | Medium  |                | [solution](<_1372. Longest ZigZag Path in a Binary Tree.md>)                                       | py                               | Jul 05, 2024    |
+| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>)             | Medium  | Daily          | [solution](<_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>)       | cpp, java, py                    | Jul 05, 2024    |
 |  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                                                                       | Easy    | N150           | [solution](<_703. Kth Largest Element in a Stream.md>)                                             | py                               | Jul 05, 2024    |
-|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                                         | Easy    | B75, N150      | [solution](<_647. Palindromic Substrings.md>)                                                      | py                               | Jul 05, 2024    |
-|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                                           | Easy    | B75, N150      | [solution](<_5. Longest Palindromic Substring.md>)                                                 | py                               | Jul 05, 2024    |
+|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                                         | Medium  | B75, N150      | [solution](<_647. Palindromic Substrings.md>)                                                      | py                               | Jul 05, 2024    |
+|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                                           | Medium  | B75, N150      | [solution](<_5. Longest Palindromic Substring.md>)                                                 | py                               | Jul 05, 2024    |
 |  746 | [Min Cost Climbing Stairs](<https://leetcode.com/problems/min-cost-climbing-stairs>)                                                                                                     | Easy    | N150           | [solution](<_746. Min Cost Climbing Stairs.md>)                                                    | py                               | Jul 05, 2024    |
-|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                                                         | Easy    | B75, N150      | [solution](<_235. Lowest Common Ancestor of a Binary Search Tree.md>)                              | py                               | Jul 04, 2024    |
-|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                                               | Easy    | N150           | [solution](<_199. Binary Tree Right Side View.md>)                                                 | cpp, java                        | Jul 04, 2024    |
-| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                                       | Easy    | N150           | [solution](<_1448. Count Good Nodes in Binary Tree.md>)                                            | java                             | Jul 04, 2024    |
+|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                                                         | Medium  | B75, N150      | [solution](<_235. Lowest Common Ancestor of a Binary Search Tree.md>)                              | py                               | Jul 04, 2024    |
+|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                                               | Medium  | N150           | [solution](<_199. Binary Tree Right Side View.md>)                                                 | cpp, java                        | Jul 04, 2024    |
+| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                                       | Medium  | N150           | [solution](<_1448. Count Good Nodes in Binary Tree.md>)                                            | java                             | Jul 04, 2024    |
 |  124 | [Binary Tree Maximum Path Sum](<https://leetcode.com/problems/binary-tree-maximum-path-sum>)                                                                                             | Hard    | B75, N150      | [solution](<_124. Binary Tree Maximum Path Sum.md>)                                                | py                               | Jul 04, 2024    |
 |  110 | [Balanced Binary Tree](<https://leetcode.com/problems/balanced-binary-tree>)                                                                                                             | Easy    | N150           | [solution](<_110. Balanced Binary Tree.md>)                                                        | py                               | Jul 04, 2024    |
 |  104 | [Maximum Depth of Binary Tree](<https://leetcode.com/problems/maximum-depth-of-binary-tree>)                                                                                             | Easy    | B75, N150      | [solution](<_104. Maximum Depth of Binary Tree.md>)                                                | py                               | Jul 04, 2024    |
-|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                                           | Easy    |                | [solution](<_82. Remove Duplicates from Sorted List II.md>)                                        | py                               | Jul 04, 2024    |
-|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Easy    |                | [solution](<_817. Linked List Components.md>)                                                      | java                             | Jul 04, 2024    |
-|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                             | Easy    |                | [solution](<_369. Plus One Linked List.md>)                                                        | c                                | Jul 04, 2024    |
-| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                             | Easy    |                | [solution](<_2816. Double a Number Represented as a Linked List.md>)                               | c                                | Jul 04, 2024    |
-| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                                           | Easy    |                | [solution](<_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                      | py                               | Jul 04, 2024    |
+|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                                           | Medium  |                | [solution](<_82. Remove Duplicates from Sorted List II.md>)                                        | py                               | Jul 04, 2024    |
+|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Medium  |                | [solution](<_817. Linked List Components.md>)                                                      | java                             | Jul 04, 2024    |
+|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                             | Medium  |                | [solution](<_369. Plus One Linked List.md>)                                                        | c                                | Jul 04, 2024    |
+| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                             | Medium  |                | [solution](<_2816. Double a Number Represented as a Linked List.md>)                               | c                                | Jul 04, 2024    |
+| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                                           | Medium  |                | [solution](<_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                      | py                               | Jul 04, 2024    |
 | 2455 | [Average Value of Even Numbers That Are Divisible by Three](<https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three>)                                   | Easy    |                | [solution](<_2455. Average Value of Even Numbers That Are Divisible by Three.md>)                  | java                             | Jul 04, 2024    |
 | 1018 | [Binary Prefix Divisible By 5](<https://leetcode.com/problems/binary-prefix-divisible-by-5>)                                                                                             | Easy    |                | [solution](<_1018. Binary Prefix Divisible By 5.md>)                                               | py                               | Jul 04, 2024    |
-| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Easy    | Weekly Premium | [solution](<_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                               | Jul 04, 2024    |
-|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                                                     | Easy    |                | [solution](<_429. N-ary Tree Level Order Traversal.md>)                                            | py                               | Jul 04, 2024    |
-|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                                             | Easy    |                | [solution](<_107. Binary Tree Level Order Traversal II.md>)                                        | java                             | Jul 04, 2024    |
-|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                                                   | Easy    | B75, N150      | [solution](<_102. Binary Tree Level Order Traversal.md>)                                           | java                             | Jul 04, 2024    |
+| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Medium  | Weekly Premium | [solution](<_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                               | Jul 04, 2024    |
+|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                                                     | Medium  |                | [solution](<_429. N-ary Tree Level Order Traversal.md>)                                            | py                               | Jul 04, 2024    |
+|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                                             | Medium  |                | [solution](<_107. Binary Tree Level Order Traversal II.md>)                                        | java                             | Jul 04, 2024    |
+|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                                                   | Medium  | B75, N150      | [solution](<_102. Binary Tree Level Order Traversal.md>)                                           | java                             | Jul 04, 2024    |
 |  993 | [Cousins in Binary Tree](<https://leetcode.com/problems/cousins-in-binary-tree>)                                                                                                         | Easy    |                | [solution](<_993. Cousins in Binary Tree.md>)                                                      | py                               | Jul 04, 2024    |
 |  637 | [Average of Levels in Binary Tree](<https://leetcode.com/problems/average-of-levels-in-binary-tree>)                                                                                     | Easy    |                | [solution](<_637. Average of Levels in Binary Tree.md>)                                            | py                               | Jul 04, 2024    |
-| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Easy    | Daily          | [solution](<_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py                 | Jul 04, 2024    |
-|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                                                           | Easy    |                | [solution](<_687. Longest Univalue Path.md>)                                                       | py                               | Jul 03, 2024    |
-|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Easy    |                | [solution](<_666. Path Sum IV.md>)                                                                 | py                               | Jul 03, 2024    |
-|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                                               | Easy    |                | [solution](<_513. Find Bottom Left Tree Value.md>)                                                 | java                             | Jul 03, 2024    |
-|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                                                             | Easy    |                | [solution](<_437. Path Sum III.md>)                                                                | py                               | Jul 03, 2024    |
-|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                                               | Easy    |                | [solution](<_113. Path Sum II.md>)                                                                 | py                               | Jul 03, 2024    |
+| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                             | Medium  | Daily          | [solution](<_2181. Merge Nodes in Between Zeros.md>)                                               | c, cpp, java, py                 | Jul 04, 2024    |
+|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                                                           | Medium  |                | [solution](<_687. Longest Univalue Path.md>)                                                       | py                               | Jul 03, 2024    |
+|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Medium  |                | [solution](<_666. Path Sum IV.md>)                                                                 | py                               | Jul 03, 2024    |
+|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                                               | Medium  |                | [solution](<_513. Find Bottom Left Tree Value.md>)                                                 | java                             | Jul 03, 2024    |
+|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                                                             | Medium  |                | [solution](<_437. Path Sum III.md>)                                                                | py                               | Jul 03, 2024    |
+|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                                               | Medium  |                | [solution](<_113. Path Sum II.md>)                                                                 | py                               | Jul 03, 2024    |
 | 3136 | [Valid Word](<https://leetcode.com/problems/valid-word>)                                                                                                                                 | Easy    |                | [solution](<_3136. Valid Word.md>)                                                                 | c, py                            | Jul 03, 2024    |
 |  112 | [Path Sum](<https://leetcode.com/problems/path-sum>)                                                                                                                                     | Easy    |                | [solution](<_112. Path Sum.md>)                                                                    | py                               | Jul 03, 2024    |
 |  226 | [Invert Binary Tree](<https://leetcode.com/problems/invert-binary-tree>)                                                                                                                 | Easy    | B75, N150      | [solution](<_226. Invert Binary Tree.md>)                                                          | py                               | Jul 03, 2024    |
 |  191 | [Number of 1 Bits](<https://leetcode.com/problems/number-of-1-bits>)                                                                                                                     | Easy    | B75, N150      | [solution](<_191. Number of 1 Bits.md>)                                                            | py                               | Jul 03, 2024    |
 |  136 | [Single Number](<https://leetcode.com/problems/single-number>)                                                                                                                           | Easy    | N150           | [solution](<_136. Single Number.md>)                                                               | py                               | Jul 03, 2024    |
 |  121 | [Best Time to Buy and Sell Stock](<https://leetcode.com/problems/best-time-to-buy-and-sell-stock>)                                                                                       | Easy    | B75, N150      | [solution](<_121. Best Time to Buy and Sell Stock.md>)                                             | py                               | Jul 03, 2024    |
-|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Easy    |                | [solution](<_890. Find and Replace Pattern.md>)                                                    | py                               | Jul 03, 2024    |
-| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Easy    |                | [solution](<_1696. Jump Game VI.md>)                                                               | java, py                         | Jul 03, 2024    |
-|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Easy    | N150           | [solution](<_90. Subsets II.md>)                                                                   | py                               | Jul 03, 2024    |
-|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                                                     | Easy    |                | [solution](<_103. Binary Tree Zigzag Level Order Traversal.md>)                                    | py                               | Jul 03, 2024    |
+|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Medium  |                | [solution](<_890. Find and Replace Pattern.md>)                                                    | py                               | Jul 03, 2024    |
+| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Medium  |                | [solution](<_1696. Jump Game VI.md>)                                                               | java, py                         | Jul 03, 2024    |
+|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Medium  | N150           | [solution](<_90. Subsets II.md>)                                                                   | py                               | Jul 03, 2024    |
+|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                                                     | Medium  |                | [solution](<_103. Binary Tree Zigzag Level Order Traversal.md>)                                    | py                               | Jul 03, 2024    |
 |  100 | [Same Tree](<https://leetcode.com/problems/same-tree>)                                                                                                                                   | Easy    | B75, N150      | [solution](<_100. Same Tree.md>)                                                                   | py                               | Jul 03, 2024    |
-| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                                         | Easy    |                | [solution](<_1602. Find Nearest Right Node in Binary Tree.md>)                                     | java, py                         | Jul 03, 2024    |
-| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                                                         | Easy    |                | [solution](<_1522. Diameter of N-Ary Tree.md>)                                                     | py                               | Jul 03, 2024    |
-| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Easy    | Daily          | [solution](<_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py                 | Jul 03, 2024    |
-|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Easy    |                | [solution](<_690. Employee Importance.md>)                                                         | java                             | Jul 02, 2024    |
-|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Easy    |                | [solution](<_565. Array Nesting.md>)                                                               | py                               | Jul 02, 2024    |
-|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                                                   | Easy    |                | [solution](<_364. Nested List Weight Sum II.md>)                                                   | java, py                         | Jul 02, 2024    |
-|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Easy    |                | [solution](<_341. Flatten Nested List Iterator.md>)                                                | java                             | Jul 02, 2024    |
-|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                                         | Easy    |                | [solution](<_339. Nested List Weight Sum.md>)                                                      | c, py                            | Jul 02, 2024    |
-|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                                       | Easy    |                | [solution](<_165. Compare Version Numbers.md>)                                                     | c, py                            | Jul 02, 2024    |
+| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                                         | Medium  |                | [solution](<_1602. Find Nearest Right Node in Binary Tree.md>)                                     | java, py                         | Jul 03, 2024    |
+| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                                                         | Medium  |                | [solution](<_1522. Diameter of N-Ary Tree.md>)                                                     | py                               | Jul 03, 2024    |
+| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Medium  | Daily          | [solution](<_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py                 | Jul 03, 2024    |
+|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Medium  |                | [solution](<_690. Employee Importance.md>)                                                         | java                             | Jul 02, 2024    |
+|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Medium  |                | [solution](<_565. Array Nesting.md>)                                                               | py                               | Jul 02, 2024    |
+|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                                                   | Medium  |                | [solution](<_364. Nested List Weight Sum II.md>)                                                   | java, py                         | Jul 02, 2024    |
+|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Medium  |                | [solution](<_341. Flatten Nested List Iterator.md>)                                                | java                             | Jul 02, 2024    |
+|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                                         | Medium  |                | [solution](<_339. Nested List Weight Sum.md>)                                                      | c, py                            | Jul 02, 2024    |
+|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                                       | Medium  |                | [solution](<_165. Compare Version Numbers.md>)                                                     | c, py                            | Jul 02, 2024    |
 |  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                                           | Easy    | Daily          | [solution](<_350. Intersection of Two Arrays II.md>)                                               | java, py                         | Jul 02, 2024    |
-|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Easy    |                | [solution](<_713. Subarray Product Less Than K.md>)                                                | py                               | Jul 01, 2024    |
+|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Medium  |                | [solution](<_713. Subarray Product Less Than K.md>)                                                | py                               | Jul 01, 2024    |
 | 1768 | [Merge Strings Alternately](<https://leetcode.com/problems/merge-strings-alternately>)                                                                                                   | Easy    |                | [solution](<_1768. Merge Strings Alternately.md>)                                                  | java                             | Jul 01, 2024    |
-| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                               | Easy    |                | [solution](<_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                        | java                             | Jul 01, 2024    |
-| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                                       | Easy    |                | [solution](<_2165. Smallest Value of the Rearranged Number.md>)                                    | py                               | Jul 01, 2024    |
+| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                               | Medium  |                | [solution](<_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                        | java                             | Jul 01, 2024    |
+| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                                       | Medium  |                | [solution](<_2165. Smallest Value of the Rearranged Number.md>)                                    | py                               | Jul 01, 2024    |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                                                               | Hard    |                | [solution](<_272. Closest Binary Search Tree Value II.md>)                                         | py                               | Jul 01, 2024    |
 | 1028 | [Recover a Tree From Preorder Traversal](<https://leetcode.com/problems/recover-a-tree-from-preorder-traversal>)                                                                         | Hard    |                | [solution](<_1028. Recover a Tree From Preorder Traversal.md>)                                     | py                               | Jul 01, 2024    |
 | 1550 | [Three Consecutive Odds](<https://leetcode.com/problems/three-consecutive-odds>)                                                                                                         | Easy    | Daily          | [solution](<_1550. Three Consecutive Odds.md>)                                                     | c, py                            | Jul 01, 2024    |
 | 1579 | [Remove Max Number of Edges to Keep Graph Fully Traversable](<https://leetcode.com/problems/remove-max-number-of-edges-to-keep-graph-fully-traversable>)                                 | Hard    | Daily          | [solution](<_1579. Remove Max Number of Edges to Keep Graph Fully Traversable.md>)                 | py                               | Jun 30, 2024    |
-|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Easy    |                | [solution](<_848. Shifting Letters.md>)                                                            | py                               | Jun 29, 2024    |
-| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)                 | Easy    |                | [solution](<_3106. Lexicographically Smallest String After Operations With Constraint.md>)         | py                               | Jun 29, 2024    |
-| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                               | Easy    |                | [solution](<_2734. Lexicographically Smallest String After Substring Operation.md>)                | py                               | Jun 29, 2024    |
+|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Medium  |                | [solution](<_848. Shifting Letters.md>)                                                            | py                               | Jun 29, 2024    |
+| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)                 | Medium  |                | [solution](<_3106. Lexicographically Smallest String After Operations With Constraint.md>)         | py                               | Jun 29, 2024    |
+| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                               | Medium  |                | [solution](<_2734. Lexicographically Smallest String After Substring Operation.md>)                | py                               | Jun 29, 2024    |
 | 1844 | [Replace All Digits with Characters](<https://leetcode.com/problems/replace-all-digits-with-characters>)                                                                                 | Easy    |                | [solution](<_1844. Replace All Digits with Characters.md>)                                         | py                               | Jun 29, 2024    |
-| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                                                         | Easy    |                | [solution](<_1858. Longest Word With All Prefixes.md>)                                             | py                               | Jun 29, 2024    |
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Easy    | N150           | [solution](<_973. K Closest Points to Origin.md>)                                                  | py                               | Jun 29, 2024    |
-|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Easy    |                | [solution](<_849. Maximize Distance to Closest Person.md>)                                         | py                               | Jun 29, 2024    |
-| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Easy    |                | [solution](<_2365. Task Scheduler II.md>)                                                          | py                               | Jun 29, 2024    |
-| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                                                 | Easy    |                | [solution](<_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                                 | py                               | Jun 29, 2024    |
-| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Easy    |                | [solution](<_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                               | Jun 29, 2024    |
-|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Easy    |                | [solution](<_384. Shuffle an Array.md>)                                                            | py                               | Jun 29, 2024    |
-| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Easy    |                | [solution](<_2473. Minimum Cost to Buy Apples.md>)                                                 | py                               | Jun 29, 2024    |
-|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                                                           | Easy    | B75, N150      | [solution](<_230. Kth Smallest Element in a BST.md>)                                               | py                               | Jun 29, 2024    |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Easy    |                | [solution](<_1268. Search Suggestions System.md>)                                                  | py                               | Jun 29, 2024    |
+| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                                                         | Medium  |                | [solution](<_1858. Longest Word With All Prefixes.md>)                                             | py                               | Jun 29, 2024    |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Medium  | N150           | [solution](<_973. K Closest Points to Origin.md>)                                                  | py                               | Jun 29, 2024    |
+|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Medium  |                | [solution](<_849. Maximize Distance to Closest Person.md>)                                         | py                               | Jun 29, 2024    |
+| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Medium  |                | [solution](<_2365. Task Scheduler II.md>)                                                          | py                               | Jun 29, 2024    |
+| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                                                 | Medium  |                | [solution](<_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                                 | py                               | Jun 29, 2024    |
+| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Medium  |                | [solution](<_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                               | Jun 29, 2024    |
+|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Medium  |                | [solution](<_384. Shuffle an Array.md>)                                                            | py                               | Jun 29, 2024    |
+| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Medium  |                | [solution](<_2473. Minimum Cost to Buy Apples.md>)                                                 | py                               | Jun 29, 2024    |
+|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                                                           | Medium  | B75, N150      | [solution](<_230. Kth Smallest Element in a BST.md>)                                               | py                               | Jun 29, 2024    |
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Medium  |                | [solution](<_1268. Search Suggestions System.md>)                                                  | py                               | Jun 29, 2024    |
 | 3045 | [Count Prefix and Suffix Pairs II](<https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii>)                                                                                     | Hard    |                | [solution](<_3045. Count Prefix and Suffix Pairs II.md>)                                           | py                               | Jun 29, 2024    |
 |   94 | [Binary Tree Inorder Traversal](<https://leetcode.com/problems/binary-tree-inorder-traversal>)                                                                                           | Easy    |                | [solution](<_94. Binary Tree Inorder Traversal.md>)                                                | java, py                         | Jun 29, 2024    |
-|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                                                   | Easy    | Weekly Premium | [solution](<_776. Split BST.md>)                                                                   | py                               | Jun 29, 2024    |
-|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                                                             | Easy    |                | [solution](<_450. Delete Node in a BST.md>)                                                        | py                               | Jun 29, 2024    |
-| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Easy    | Daily          | [solution](<_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                         | Jun 29, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Easy    | Daily          | [solution](<_1382. Balance a Binary Search Tree.md>)                                               | py                               | Jun 29, 2024    |
-|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Easy    |                | [solution](<_353. Design Snake Game.md>)                                                           | py                               | Jun 28, 2024    |
-| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                                                   | Easy    |                | [solution](<_2671. Frequency Tracker.md>)                                                          | py                               | Jun 28, 2024    |
-| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Easy    | N150           | [solution](<_2013. Detect Squares.md>)                                                             | py                               | Jun 28, 2024    |
+|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                                                   | Medium  | Weekly Premium | [solution](<_776. Split BST.md>)                                                                   | py                               | Jun 29, 2024    |
+|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                                                             | Medium  |                | [solution](<_450. Delete Node in a BST.md>)                                                        | py                               | Jun 29, 2024    |
+| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                                               | Medium  | Daily          | [solution](<_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)                        | java, py                         | Jun 29, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                             | Medium  | Daily          | [solution](<_1382. Balance a Binary Search Tree.md>)                                               | py                               | Jun 29, 2024    |
+|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Medium  |                | [solution](<_353. Design Snake Game.md>)                                                           | py                               | Jun 28, 2024    |
+| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                                                   | Medium  |                | [solution](<_2671. Frequency Tracker.md>)                                                          | py                               | Jun 28, 2024    |
+| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Medium  | N150           | [solution](<_2013. Detect Squares.md>)                                                             | py                               | Jun 28, 2024    |
 |  431 | [Encode N-ary Tree to Binary Tree](<https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree>)                                                                                     | Hard    |                | [solution](<_431. Encode N-ary Tree to Binary Tree.md>)                                            | java, py                         | Jun 28, 2024    |
-|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Easy    |                | [solution](<_758. Bold Words in String.md>)                                                        | py                               | Jun 28, 2024    |
-|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Easy    |                | [solution](<_616. Add Bold Tag in String.md>)                                                      | py                               | Jun 28, 2024    |
-| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Easy    |                | [solution](<_3043. Find the Length of the Longest Common Prefix.md>)                               | py                               | Jun 28, 2024    |
-| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Easy    | Daily          | [solution](<_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py                 | Jun 28, 2024    |
-| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Easy    |                | [solution](<_1282. Group the People Given the Group Size They Belong To.md>)                       | py                               | Jun 28, 2024    |
-| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Easy    |                | [solution](<_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                               | Jun 28, 2024    |
-| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                                 | Easy    |                | [solution](<_1166. Design File System.md>)                                                         | py                               | Jun 28, 2024    |
-|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Easy    | B75, N150      | [solution](<_79. Word Search.md>)                                                                  | py                               | Jun 27, 2024    |
-|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Easy    |                | [solution](<_720. Longest Word in Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
-|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                                 | Easy    |                | [solution](<_676. Implement Magic Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
-|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                                 | Easy    | B75, N150      | [solution](<_211. Design Add and Search Words Data Structure.md>)                                  | py                               | Jun 27, 2024    |
-|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                                               | Easy    | B75, N150      | [solution](<_208. Implement Trie (Prefix Tree).md>)                                                | py                               | Jun 27, 2024    |
-| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                                         | Easy    |                | [solution](<_1804. Implement Trie II (Prefix Tree).md>)                                            | py                               | Jun 27, 2024    |
-|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                                           | Easy    | N150           | [solution](<_138. Copy List with Random Pointer.md>)                                               | py                               | Jun 27, 2024    |
+|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Medium  |                | [solution](<_758. Bold Words in String.md>)                                                        | py                               | Jun 28, 2024    |
+|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Medium  |                | [solution](<_616. Add Bold Tag in String.md>)                                                      | py                               | Jun 28, 2024    |
+| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Medium  |                | [solution](<_3043. Find the Length of the Longest Common Prefix.md>)                               | py                               | Jun 28, 2024    |
+| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Medium  | Daily          | [solution](<_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py                 | Jun 28, 2024    |
+| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Medium  |                | [solution](<_1282. Group the People Given the Group Size They Belong To.md>)                       | py                               | Jun 28, 2024    |
+| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Medium  |                | [solution](<_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                               | Jun 28, 2024    |
+| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                                 | Medium  |                | [solution](<_1166. Design File System.md>)                                                         | py                               | Jun 28, 2024    |
+|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Medium  | B75, N150      | [solution](<_79. Word Search.md>)                                                                  | py                               | Jun 27, 2024    |
+|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Medium  |                | [solution](<_720. Longest Word in Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
+|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                                 | Medium  |                | [solution](<_676. Implement Magic Dictionary.md>)                                                  | py                               | Jun 27, 2024    |
+|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                                 | Medium  | B75, N150      | [solution](<_211. Design Add and Search Words Data Structure.md>)                                  | py                               | Jun 27, 2024    |
+|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                                               | Medium  | B75, N150      | [solution](<_208. Implement Trie (Prefix Tree).md>)                                                | py                               | Jun 27, 2024    |
+| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                                         | Medium  |                | [solution](<_1804. Implement Trie II (Prefix Tree).md>)                                            | py                               | Jun 27, 2024    |
+|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                                           | Medium  | N150           | [solution](<_138. Copy List with Random Pointer.md>)                                               | py                               | Jun 27, 2024    |
 |  212 | [Word Search II](<https://leetcode.com/problems/word-search-ii>)                                                                                                                         | Hard    | B75, N150      | [solution](<_212. Word Search II.md>)                                                              | py                               | Jun 27, 2024    |
 |  206 | [Reverse Linked List](<https://leetcode.com/problems/reverse-linked-list>)                                                                                                               | Easy    | B75, N150      | [solution](<_206. Reverse Linked List.md>)                                                         | java                             | Jun 27, 2024    |
-| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Easy    |                | [solution](<_2221. Find Triangular Sum of an Array.md>)                                            | c, java                          | Jun 27, 2024    |
-| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Easy    |                | [solution](<_1852. Distinct Numbers in Each Subarray.md>)                                          | java                             | Jun 27, 2024    |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Easy    |                | [solution](<_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java                     | Jun 27, 2024    |
-|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                                       | Easy    |                | [solution](<_430. Flatten a Multilevel Doubly Linked List.md>)                                     | cpp, java                        | Jun 27, 2024    |
-| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Easy    |                | [solution](<_2352. Equal Row and Column Pairs.md>)                                                 | py                               | Jun 27, 2024    |
-| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Easy    |                | [solution](<_1980. Find Unique Binary String.md>)                                                  | c, py                            | Jun 27, 2024    |
-| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Easy    |                | [solution](<_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                               | Jun 27, 2024    |
-| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                                           | Easy    |                | [solution](<_1660. Correct a Binary Tree.md>)                                                      | py                               | Jun 27, 2024    |
+| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Medium  |                | [solution](<_2221. Find Triangular Sum of an Array.md>)                                            | c, java                          | Jun 27, 2024    |
+| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Medium  |                | [solution](<_1852. Distinct Numbers in Each Subarray.md>)                                          | java                             | Jun 27, 2024    |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Medium  |                | [solution](<_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java                     | Jun 27, 2024    |
+|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                                       | Medium  |                | [solution](<_430. Flatten a Multilevel Doubly Linked List.md>)                                     | cpp, java                        | Jun 27, 2024    |
+| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Medium  |                | [solution](<_2352. Equal Row and Column Pairs.md>)                                                 | py                               | Jun 27, 2024    |
+| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Medium  |                | [solution](<_1980. Find Unique Binary String.md>)                                                  | c, py                            | Jun 27, 2024    |
+| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Medium  |                | [solution](<_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                               | Jun 27, 2024    |
+| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                                           | Medium  |                | [solution](<_1660. Correct a Binary Tree.md>)                                                      | py                               | Jun 27, 2024    |
 | 1791 | [Find Center of Star Graph](<https://leetcode.com/problems/find-center-of-star-graph>)                                                                                                   | Easy    | Daily          | [solution](<_1791. Find Center of Star Graph.md>)                                                  | c, cpp, java, py                 | Jun 27, 2024    |
-|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                                               | Easy    |                | [solution](<_863. All Nodes Distance K in Binary Tree.md>)                                         | py                               | Jun 26, 2024    |
-|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Easy    |                | [solution](<_542. 01 Matrix.md>)                                                                   | py                               | Jun 26, 2024    |
-|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Easy    | N150           | [solution](<_287. Find the Duplicate Number.md>)                                                   | c                                | Jun 26, 2024    |
-| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                                           | Easy    |                | [solution](<_2385. Amount of Time for Binary Tree to Be Infected.md>)                              | py                               | Jun 26, 2024    |
-| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Easy    |                | [solution](<_1730. Shortest Path to Get Food.md>)                                                  | py                               | Jun 26, 2024    |
-|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                                                               | Easy    |                | [solution](<_173. Binary Search Tree Iterator.md>)                                                 | py                               | Jun 26, 2024    |
-|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                             | Easy    |                | [solution](<_142. Linked List Cycle II.md>)                                                        | py                               | Jun 26, 2024    |
-| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Easy    |                | [solution](<_1254. Number of Closed Islands.md>)                                                   | py                               | Jun 26, 2024    |
-| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Easy    | Daily          | [solution](<_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                                | Jun 26, 2024    |
-| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Easy    |                | [solution](<_1020. Number of Enclaves.md>)                                                         | py                               | Jun 26, 2024    |
+|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                                               | Medium  |                | [solution](<_863. All Nodes Distance K in Binary Tree.md>)                                         | py                               | Jun 26, 2024    |
+|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Medium  |                | [solution](<_542. 01 Matrix.md>)                                                                   | py                               | Jun 26, 2024    |
+|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Medium  | N150           | [solution](<_287. Find the Duplicate Number.md>)                                                   | c                                | Jun 26, 2024    |
+| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                                           | Medium  |                | [solution](<_2385. Amount of Time for Binary Tree to Be Infected.md>)                              | py                               | Jun 26, 2024    |
+| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Medium  |                | [solution](<_1730. Shortest Path to Get Food.md>)                                                  | py                               | Jun 26, 2024    |
+|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                                                               | Medium  |                | [solution](<_173. Binary Search Tree Iterator.md>)                                                 | py                               | Jun 26, 2024    |
+|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                             | Medium  |                | [solution](<_142. Linked List Cycle II.md>)                                                        | py                               | Jun 26, 2024    |
+| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Medium  |                | [solution](<_1254. Number of Closed Islands.md>)                                                   | py                               | Jun 26, 2024    |
+| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                                                         | Medium  | Daily          | [solution](<_1038. Binary Search Tree to Greater Sum Tree.md>)                                     | c                                | Jun 26, 2024    |
+| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Medium  |                | [solution](<_1020. Number of Enclaves.md>)                                                         | py                               | Jun 26, 2024    |
 | 2954 | [Count the Number of Infection Sequences](<https://leetcode.com/problems/count-the-number-of-infection-sequences>)                                                                       | Hard    |                | [solution](<_2954. Count the Number of Infection Sequences.md>)                                    | py                               | Jun 26, 2024    |
-| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Easy    |                | [solution](<_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py                 | Jun 24, 2024    |
-| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                                           | Easy    |                | [solution](<_1669. Merge In Between Linked Lists.md>)                                              | c                                | Jun 24, 2024    |
-| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                                                 | Easy    |                | [solution](<_1641. Count Sorted Vowel Strings.md>)                                                 | c, cpp, java                     | Jun 24, 2024    |
-| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                                       | Easy    |                | [solution](<_1305. All Elements in Two Binary Search Trees.md>)                                    | java                             | Jun 24, 2024    |
-|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                                 | Easy    |                | [solution](<_791. Custom Sort String.md>)                                                          | java                             | Jun 24, 2024    |
-| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Easy    |                | [solution](<_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                         | Jun 24, 2024    |
-| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Easy    |                | [solution](<_2225. Find Players With Zero or One Losses.md>)                                       | java                             | Jun 24, 2024    |
-|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Easy    | N150           | [solution](<_695. Max Area of Island.md>)                                                          | c                                | Jun 24, 2024    |
-|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Easy    |                | [solution](<_419. Battleships in a Board.md>)                                                      | c, py                            | Jun 24, 2024    |
-| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Easy    |                | [solution](<_1992. Find All Groups of Farmland.md>)                                                | java, py                         | Jun 24, 2024    |
-| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Easy    |                | [solution](<_1905. Count Sub Islands.md>)                                                          | py                               | Jun 24, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily          | [solution](<_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                             | Jun 24, 2024    |
-| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Easy    | Daily          | [solution](<_1052. Grumpy Bookstore Owner.md>)                                                     | py                               | Jun 24, 2024    |
+| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Medium  |                | [solution](<_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py                 | Jun 24, 2024    |
+| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                                           | Medium  |                | [solution](<_1669. Merge In Between Linked Lists.md>)                                              | c                                | Jun 24, 2024    |
+| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                                                 | Medium  |                | [solution](<_1641. Count Sorted Vowel Strings.md>)                                                 | c, cpp, java                     | Jun 24, 2024    |
+| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                                       | Medium  |                | [solution](<_1305. All Elements in Two Binary Search Trees.md>)                                    | java                             | Jun 24, 2024    |
+|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                                 | Medium  |                | [solution](<_791. Custom Sort String.md>)                                                          | java                             | Jun 24, 2024    |
+| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Medium  |                | [solution](<_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                         | Jun 24, 2024    |
+| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Medium  |                | [solution](<_2225. Find Players With Zero or One Losses.md>)                                       | java                             | Jun 24, 2024    |
+|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Medium  | N150           | [solution](<_695. Max Area of Island.md>)                                                          | c                                | Jun 24, 2024    |
+|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Medium  |                | [solution](<_419. Battleships in a Board.md>)                                                      | c, py                            | Jun 24, 2024    |
+| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Medium  |                | [solution](<_1992. Find All Groups of Farmland.md>)                                                | java, py                         | Jun 24, 2024    |
+| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Medium  |                | [solution](<_1905. Count Sub Islands.md>)                                                          | py                               | Jun 24, 2024    |
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily          | [solution](<_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                             | Jun 24, 2024    |
+| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Medium  | Daily          | [solution](<_1052. Grumpy Bookstore Owner.md>)                                                     | py                               | Jun 24, 2024    |
 |  995 | [Minimum Number of K Consecutive Bit Flips](<https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips>)                                                                   | Hard    | Daily          | [solution](<_995. Minimum Number of K Consecutive Bit Flips.md>)                                   | c, py                            | Jun 24, 2024    |
-| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                                                   | Easy    |                | [solution](<_2415. Reverse Odd Levels of Binary Tree.md>)                                          | py                               | Jun 23, 2024    |
-| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                                                       | Easy    |                | [solution](<_1973. Count Nodes Equal to Sum of Descendants.md>)                                    | c                                | Jun 23, 2024    |
-| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                                                             | Easy    |                | [solution](<_1026. Maximum Difference Between Node and Ancestor.md>)                               | py                               | Jun 23, 2024    |
-|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                                                               | Easy    | B75, N150      | [solution](<_98. Validate Binary Search Tree.md>)                                                  | c                                | Jun 23, 2024    |
-|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                                      | Easy    | N150           | [solution](<_50. Pow(x, n).md>)                                                                    | c, java, py                      | Jun 23, 2024    |
-| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                               | Easy    |                | [solution](<_2405. Optimal Partition of String.md>)                                                | py                               | Jun 23, 2024    |
-| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Easy    |                | [solution](<_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                               | Jun 23, 2024    |
-| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Easy    |                | [solution](<_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py                      | Jun 23, 2024    |
-| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Easy    |                | [solution](<_1561. Maximum Number of Coins You Can Get.md>)                                        | py                               | Jun 23, 2024    |
-| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Easy    |                | [solution](<_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                             | Jun 22, 2024    |
-| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Easy    |                | [solution](<_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                             | Jun 22, 2024    |
+| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                                                   | Medium  |                | [solution](<_2415. Reverse Odd Levels of Binary Tree.md>)                                          | py                               | Jun 23, 2024    |
+| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                                                       | Medium  |                | [solution](<_1973. Count Nodes Equal to Sum of Descendants.md>)                                    | c                                | Jun 23, 2024    |
+| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                                                             | Medium  |                | [solution](<_1026. Maximum Difference Between Node and Ancestor.md>)                               | py                               | Jun 23, 2024    |
+|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                                                               | Medium  | B75, N150      | [solution](<_98. Validate Binary Search Tree.md>)                                                  | c                                | Jun 23, 2024    |
+|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                                      | Medium  | N150           | [solution](<_50. Pow(x, n).md>)                                                                    | c, java, py                      | Jun 23, 2024    |
+| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                               | Medium  |                | [solution](<_2405. Optimal Partition of String.md>)                                                | py                               | Jun 23, 2024    |
+| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Medium  |                | [solution](<_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                               | Jun 23, 2024    |
+| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Medium  |                | [solution](<_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py                      | Jun 23, 2024    |
+| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Medium  |                | [solution](<_1561. Maximum Number of Coins You Can Get.md>)                                        | py                               | Jun 23, 2024    |
+| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Medium  |                | [solution](<_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                             | Jun 22, 2024    |
+| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Medium  |                | [solution](<_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                             | Jun 22, 2024    |
 | 3190 | [Find Minimum Operations to Make All Elements Divisible by Three](<https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three>)                       | Easy    |                | [solution](<_3190. Find Minimum Operations to Make All Elements Divisible by Three.md>)            | java                             | Jun 22, 2024    |
-|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Easy    |                | [solution](<_807. Max Increase to Keep City Skyline.md>)                                           | java                             | Jun 22, 2024    |
-| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Easy    |                | [solution](<_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                          | Jun 22, 2024    |
-| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                                       | Easy    |                | [solution](<_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)                    | c, java                          | Jun 22, 2024    |
-|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                                       | Easy    |                | [solution](<_382. Linked List Random Node.md>)                                                     | c, java, py                      | Jun 22, 2024    |
-| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Easy    | Weekly Premium | [solution](<_2743. Count Substrings Without Repeating Character.md>)                               | java, py                         | Jun 22, 2024    |
-| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Easy    |                | [solution](<_1019. Next Greater Node In Linked List.md>)                                           | py                               | Jun 22, 2024    |
-|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Easy    |                | [solution](<_930. Binary Subarrays With Sum.md>)                                                   | py                               | Jun 22, 2024    |
-|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                                 | Easy    |                | [solution](<_725. Split Linked List in Parts.md>)                                                  | py                               | Jun 22, 2024    |
-|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                                   | Easy    |                | [solution](<_708. Insert into a Sorted Circular Linked List.md>)                                   | py                               | Jun 22, 2024    |
-|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                                 | Easy    |                | [solution](<_707. Design Linked List.md>)                                                          | java                             | Jun 22, 2024    |
-|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                               | Easy    |                | [solution](<_61. Rotate List.md>)                                                                  | py                               | Jun 22, 2024    |
-|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                             | Easy    |                | [solution](<_328. Odd Even Linked List.md>)                                                        | py                               | Jun 22, 2024    |
-| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Easy    | Daily          | [solution](<_1248. Count Number of Nice Subarrays.md>)                                             | py                               | Jun 22, 2024    |
+|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Medium  |                | [solution](<_807. Max Increase to Keep City Skyline.md>)                                           | java                             | Jun 22, 2024    |
+| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Medium  |                | [solution](<_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                          | Jun 22, 2024    |
+| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                                       | Medium  |                | [solution](<_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)                    | c, java                          | Jun 22, 2024    |
+|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                                       | Medium  |                | [solution](<_382. Linked List Random Node.md>)                                                     | c, java, py                      | Jun 22, 2024    |
+| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Medium  | Weekly Premium | [solution](<_2743. Count Substrings Without Repeating Character.md>)                               | java, py                         | Jun 22, 2024    |
+| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Medium  |                | [solution](<_1019. Next Greater Node In Linked List.md>)                                           | py                               | Jun 22, 2024    |
+|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Medium  |                | [solution](<_930. Binary Subarrays With Sum.md>)                                                   | py                               | Jun 22, 2024    |
+|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                                 | Medium  |                | [solution](<_725. Split Linked List in Parts.md>)                                                  | py                               | Jun 22, 2024    |
+|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                                   | Medium  |                | [solution](<_708. Insert into a Sorted Circular Linked List.md>)                                   | py                               | Jun 22, 2024    |
+|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                                 | Medium  |                | [solution](<_707. Design Linked List.md>)                                                          | java                             | Jun 22, 2024    |
+|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                               | Medium  |                | [solution](<_61. Rotate List.md>)                                                                  | py                               | Jun 22, 2024    |
+|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                             | Medium  |                | [solution](<_328. Odd Even Linked List.md>)                                                        | py                               | Jun 22, 2024    |
+| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Medium  | Daily          | [solution](<_1248. Count Number of Nice Subarrays.md>)                                             | py                               | Jun 22, 2024    |
 |  392 | [Is Subsequence](<https://leetcode.com/problems/is-subsequence>)                                                                                                                         | Easy    |                | [solution](<_392. Is Subsequence.md>)                                                              | java                             | Jun 22, 2024    |
-| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                                   | Easy    |                | [solution](<_2130. Maximum Twin Sum of a Linked List.md>)                                          | py                               | Jun 21, 2024    |
+| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                                   | Medium  |                | [solution](<_2130. Maximum Twin Sum of a Linked List.md>)                                          | py                               | Jun 21, 2024    |
 |  977 | [Squares of a Sorted Array](<https://leetcode.com/problems/squares-of-a-sorted-array>)                                                                                                   | Easy    |                | [solution](<_977. Squares of a Sorted Array.md>)                                                   | py                               | Jun 21, 2024    |
-| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Easy    | Daily          | [solution](<_1552. Magnetic Force Between Two Balls.md>)                                           | py                               | Jun 20, 2024    |
-|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                                             | Easy    |                | [solution](<_856. Score of Parentheses.md>)                                                        | py                               | Jun 19, 2024    |
-|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Easy    | B75, N150      | [solution](<_57. Insert Interval.md>)                                                              | py                               | Jun 19, 2024    |
-|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Easy    | B75, N150      | [solution](<_56. Merge Intervals.md>)                                                              | py                               | Jun 19, 2024    |
-| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Easy    |                | [solution](<_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                               | Jun 19, 2024    |
-| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                                               | Easy    |                | [solution](<_1209. Remove All Adjacent Duplicates in String II.md>)                                | py                               | Jun 19, 2024    |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Easy    | Daily          | [solution](<_826. Most Profit Assigning Work.md>)                                                  | py                               | Jun 18, 2024    |
-|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Easy    |                | [solution](<_451. Sort Characters By Frequency.md>)                                                | py                               | Jun 18, 2024    |
-| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                                             | Easy    |                | [solution](<_2374. Node With Highest Edge Score.md>)                                               | py                               | Jun 18, 2024    |
+| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Medium  | Daily          | [solution](<_1552. Magnetic Force Between Two Balls.md>)                                           | py                               | Jun 20, 2024    |
+|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                                             | Medium  |                | [solution](<_856. Score of Parentheses.md>)                                                        | py                               | Jun 19, 2024    |
+|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Medium  | B75, N150      | [solution](<_57. Insert Interval.md>)                                                              | py                               | Jun 19, 2024    |
+|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Medium  | B75, N150      | [solution](<_56. Merge Intervals.md>)                                                              | py                               | Jun 19, 2024    |
+| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Medium  |                | [solution](<_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                               | Jun 19, 2024    |
+| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                                               | Medium  |                | [solution](<_1209. Remove All Adjacent Duplicates in String II.md>)                                | py                               | Jun 19, 2024    |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Medium  | Daily          | [solution](<_826. Most Profit Assigning Work.md>)                                                  | py                               | Jun 18, 2024    |
+|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Medium  |                | [solution](<_451. Sort Characters By Frequency.md>)                                                | py                               | Jun 18, 2024    |
+| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                                             | Medium  |                | [solution](<_2374. Node With Highest Edge Score.md>)                                               | py                               | Jun 18, 2024    |
 |   23 | [Merge k Sorted Lists](<https://leetcode.com/problems/merge-k-sorted-lists>)                                                                                                             | Hard    | B75, N150      | [solution](<_23. Merge k Sorted Lists.md>)                                                         | py                               | Jun 17, 2024    |
-|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Easy    | Daily          | [solution](<_663. Equal Tree Partition.md>)                                                        | py                               | Jun 17, 2024    |
+|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                                                             | Medium  | Daily          | [solution](<_663. Equal Tree Partition.md>)                                                        | py                               | Jun 17, 2024    |
 |  509 | [Fibonacci Number](<https://leetcode.com/problems/fibonacci-number>)                                                                                                                     | Easy    |                | [solution](<_509. Fibonacci Number.md>)                                                            | c                                | Jun 17, 2024    |
 | 2423 | [Remove Letter To Equalize Frequency](<https://leetcode.com/problems/remove-letter-to-equalize-frequency>)                                                                               | Easy    |                | [solution](<_2423. Remove Letter To Equalize Frequency.md>)                                        | py                               | Jun 17, 2024    |
 | 1909 | [Remove One Element to Make the Array Strictly Increasing](<https://leetcode.com/problems/remove-one-element-to-make-the-array-strictly-increasing>)                                     | Easy    |                | [solution](<_1909. Remove One Element to Make the Array Strictly Increasing.md>)                   | c                                | Jun 17, 2024    |
-|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Easy    | B75, N150      | [solution](<_200. Number of Islands.md>)                                                           | py                               | Jun 17, 2024    |
-|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                                                                   | Easy    | N150           | [solution](<_155. Min Stack.md>)                                                                   | py                               | Jun 16, 2024    |
+|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Medium  | B75, N150      | [solution](<_200. Number of Islands.md>)                                                           | py                               | Jun 17, 2024    |
+|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                                                                   | Medium  | N150           | [solution](<_155. Min Stack.md>)                                                                   | py                               | Jun 16, 2024    |
 |  330 | [Patching Array](<https://leetcode.com/problems/patching-array>)                                                                                                                         | Hard    | Daily          | [solution](<_330. Patching Array.md>)                                                              | py                               | Jun 16, 2024    |
-| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Easy    |                | [solution](<_1481. Least Number of Unique Integers after K Removals.md>)                           | py                               | Jun 15, 2024    |
-| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                                 | Easy    |                | [solution](<_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                         | py                               | Jun 15, 2024    |
+| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Medium  |                | [solution](<_1481. Least Number of Unique Integers after K Removals.md>)                           | py                               | Jun 15, 2024    |
+| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                                 | Medium  |                | [solution](<_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                         | py                               | Jun 15, 2024    |
 | 1255 | [Maximum Score Words Formed by Letters](<https://leetcode.com/problems/maximum-score-words-formed-by-letters>)                                                                           | Hard    |                | [solution](<_1255. Maximum Score Words Formed by Letters.md>)                                      | py                               | Jun 15, 2024    |
-|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Easy    | N150           | [solution](<_994. Rotting Oranges.md>)                                                             | py                               | Jun 15, 2024    |
-|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                                       | Easy    |                | [solution](<_784. Letter Case Permutation.md>)                                                     | py                               | Jun 15, 2024    |
-|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                                           | Easy    |                | [solution](<_394. Decode String.md>)                                                               | py                               | Jun 15, 2024    |
-|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Easy    | N150           | [solution](<_286. Walls and Gates.md>)                                                             | py                               | Jun 15, 2024    |
-| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                                       | Easy    |                | [solution](<_1087. Brace Expansion.md>)                                                            | py                               | Jun 15, 2024    |
+|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Medium  | N150           | [solution](<_994. Rotting Oranges.md>)                                                             | py                               | Jun 15, 2024    |
+|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                                       | Medium  |                | [solution](<_784. Letter Case Permutation.md>)                                                     | py                               | Jun 15, 2024    |
+|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                                           | Medium  |                | [solution](<_394. Decode String.md>)                                                               | py                               | Jun 15, 2024    |
+|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Medium  | N150           | [solution](<_286. Walls and Gates.md>)                                                             | py                               | Jun 15, 2024    |
+| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                                       | Medium  |                | [solution](<_1087. Brace Expansion.md>)                                                            | py                               | Jun 15, 2024    |
 | 2258 | [Escape the Spreading Fire](<https://leetcode.com/problems/escape-the-spreading-fire>)                                                                                                   | Hard    |                | [solution](<_2258. Escape the Spreading Fire.md>)                                                  | py                               | Jun 15, 2024    |
-|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Easy    | N150           | [solution](<_74. Search a 2D Matrix.md>)                                                           | py                               | Jun 15, 2024    |
-|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Easy    | B75, N150      | [solution](<_48. Rotate Image.md>)                                                                 | c, py                            | Jun 15, 2024    |
-| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Easy    | Weekly Premium | [solution](<_1580. Put Boxes Into the Warehouse II.md>)                                            | py                               | Jun 15, 2024    |
-| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Easy    |                | [solution](<_1564. Put Boxes Into the Warehouse I.md>)                                             | py                               | Jun 15, 2024    |
+|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Medium  | N150           | [solution](<_74. Search a 2D Matrix.md>)                                                           | py                               | Jun 15, 2024    |
+|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Medium  | B75, N150      | [solution](<_48. Rotate Image.md>)                                                                 | c, py                            | Jun 15, 2024    |
+| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Medium  | Weekly Premium | [solution](<_1580. Put Boxes Into the Warehouse II.md>)                                            | py                               | Jun 15, 2024    |
+| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Medium  |                | [solution](<_1564. Put Boxes Into the Warehouse I.md>)                                             | py                               | Jun 15, 2024    |
 |  502 | [IPO](<https://leetcode.com/problems/ipo>)                                                                                                                                               | Hard    | Daily          | [solution](<_502. IPO.md>)                                                                         | py                               | Jun 15, 2024    |
 |  867 | [Transpose Matrix](<https://leetcode.com/problems/transpose-matrix>)                                                                                                                     | Easy    |                | [solution](<_867. Transpose Matrix.md>)                                                            | py                               | Jun 15, 2024    |
-|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Easy    | Daily          | [solution](<_945. Minimum Increment to Make Array Unique.md>)                                      | py                               | Jun 14, 2024    |
-|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Easy    | N150           | [solution](<_853. Car Fleet.md>)                                                                   | py                               | Jun 14, 2024    |
-|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Easy    | N150           | [solution](<_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                               | Jun 14, 2024    |
-|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Easy    |                | [solution](<_665. Non-decreasing Array.md>)                                                        | java, py                         | Jun 14, 2024    |
-|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Easy    | N150           | [solution](<_739. Daily Temperatures.md>)                                                          | c, java, py                      | Jun 13, 2024    |
-|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Easy    | N150           | [solution](<_36. Valid Sudoku.md>)                                                                 | py                               | Jun 13, 2024    |
-|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                                             | Easy    | N150           | [solution](<_22. Generate Parentheses.md>)                                                         | py                               | Jun 13, 2024    |
-|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Easy    | B75, N150      | [solution](<_128. Longest Consecutive Sequence.md>)                                                | java, py                         | Jun 13, 2024    |
-|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Easy    | B75, N150      | [solution](<_49. Group Anagrams.md>)                                                               | py                               | Jun 13, 2024    |
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Easy    | B75, N150      | [solution](<_347. Top K Frequent Elements.md>)                                                     | py                               | Jun 13, 2024    |
-| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                                         | Easy    |                | [solution](<_2807. Insert Greatest Common Divisors in Linked List.md>)                             | py                               | Jun 13, 2024    |
-|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Easy    | B75, N150      | [solution](<_271. Encode and Decode Strings.md>)                                                   | py                               | Jun 13, 2024    |
-|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Easy    | B75, N150      | [solution](<_238. Product of Array Except Self.md>)                                                | py                               | Jun 13, 2024    |
-| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                                         | Easy    |                | [solution](<_1551. Minimum Operations to Make Array Equal.md>)                                     | c, java, js, kt, py, rb, rs      | Jun 13, 2024    |
+|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Medium  | Daily          | [solution](<_945. Minimum Increment to Make Array Unique.md>)                                      | py                               | Jun 14, 2024    |
+|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Medium  | N150           | [solution](<_853. Car Fleet.md>)                                                                   | py                               | Jun 14, 2024    |
+|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Medium  | N150           | [solution](<_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                               | Jun 14, 2024    |
+|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Medium  |                | [solution](<_665. Non-decreasing Array.md>)                                                        | java, py                         | Jun 14, 2024    |
+|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Medium  | N150           | [solution](<_739. Daily Temperatures.md>)                                                          | c, java, py                      | Jun 13, 2024    |
+|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Medium  | N150           | [solution](<_36. Valid Sudoku.md>)                                                                 | py                               | Jun 13, 2024    |
+|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                                             | Medium  | N150           | [solution](<_22. Generate Parentheses.md>)                                                         | py                               | Jun 13, 2024    |
+|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Medium  | B75, N150      | [solution](<_128. Longest Consecutive Sequence.md>)                                                | java, py                         | Jun 13, 2024    |
+|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Medium  | B75, N150      | [solution](<_49. Group Anagrams.md>)                                                               | py                               | Jun 13, 2024    |
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Medium  | B75, N150      | [solution](<_347. Top K Frequent Elements.md>)                                                     | py                               | Jun 13, 2024    |
+| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                                         | Medium  |                | [solution](<_2807. Insert Greatest Common Divisors in Linked List.md>)                             | py                               | Jun 13, 2024    |
+|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Medium  | B75, N150      | [solution](<_271. Encode and Decode Strings.md>)                                                   | py                               | Jun 13, 2024    |
+|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Medium  | B75, N150      | [solution](<_238. Product of Array Except Self.md>)                                                | py                               | Jun 13, 2024    |
+| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                                         | Medium  |                | [solution](<_1551. Minimum Operations to Make Array Equal.md>)                                     | c, java, js, kt, py, rb, rs      | Jun 13, 2024    |
 |  242 | [Valid Anagram](<https://leetcode.com/problems/valid-anagram>)                                                                                                                           | Easy    | B75, N150      | [solution](<_242. Valid Anagram.md>)                                                               | c, py                            | Jun 13, 2024    |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Easy    |                | [solution](<_654. Maximum Binary Tree.md>)                                                         | py                               | Jun 12, 2024    |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                                       | Easy    |                | [solution](<_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)                     | py                               | Jun 12, 2024    |
-|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                                                 | Easy    |                | [solution](<_366. Find Leaves of Binary Tree.md>)                                                  | py                               | Jun 12, 2024    |
-| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Easy    |                | [solution](<_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                         | Jun 12, 2024    |
-| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                                                   | Easy    |                | [solution](<_1315. Sum of Nodes with Even-Valued Grandparent.md>)                                  | py                               | Jun 12, 2024    |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Medium  |                | [solution](<_654. Maximum Binary Tree.md>)                                                         | py                               | Jun 12, 2024    |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                                       | Medium  |                | [solution](<_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)                     | py                               | Jun 12, 2024    |
+|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                                                 | Medium  |                | [solution](<_366. Find Leaves of Binary Tree.md>)                                                  | py                               | Jun 12, 2024    |
+| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Medium  |                | [solution](<_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                         | Jun 12, 2024    |
+| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                                                   | Medium  |                | [solution](<_1315. Sum of Nodes with Even-Valued Grandparent.md>)                                  | py                               | Jun 12, 2024    |
 |  217 | [Contains Duplicate](<https://leetcode.com/problems/contains-duplicate>)                                                                                                                 | Easy    | B75, N150      | [solution](<_217. Contains Duplicate.md>)                                                          | py                               | Jun 12, 2024    |
-|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Easy    | Daily          | [solution](<_75. Sort Colors.md>)                                                                  | c, py                            | Jun 12, 2024    |
+|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Medium  | Daily          | [solution](<_75. Sort Colors.md>)                                                                  | c, py                            | Jun 12, 2024    |
 |  987 | [Vertical Order Traversal of a Binary Tree](<https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree>)                                                                   | Hard    |                | [solution](<_987. Vertical Order Traversal of a Binary Tree.md>)                                   | py                               | Jun 12, 2024    |
-|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Easy    |                | [solution](<_950. Reveal Cards In Increasing Order.md>)                                            | py                               | Jun 12, 2024    |
-|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Easy    |                | [solution](<_946. Validate Stack Sequences.md>)                                                    | c, py                            | Jun 12, 2024    |
-|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                                           | Easy    |                | [solution](<_921. Minimum Add to Make Parentheses Valid.md>)                                       | java, py                         | Jun 12, 2024    |
-|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Easy    |                | [solution](<_909. Snakes and Ladders.md>)                                                          | py                               | Jun 12, 2024    |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                             | Easy    |                | [solution](<_314. Binary Tree Vertical Order Traversal.md>)                                        | py                               | Jun 12, 2024    |
-| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                                           | Easy    |                | [solution](<_2487. Remove Nodes From Linked List.md>)                                              | py                               | Jun 12, 2024    |
-| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                                                     | Easy    |                | [solution](<_1006. Clumsy Factorial.md>)                                                           | c, py                            | Jun 12, 2024    |
-|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                                           | Easy    |                | [solution](<_71. Simplify Path.md>)                                                                | py                               | Jun 11, 2024    |
-|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Easy    | N150           | [solution](<_150. Evaluate Reverse Polish Notation.md>)                                            | py                               | Jun 11, 2024    |
-|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                             | Easy    | B75, N150      | [solution](<_143. Reorder List.md>)                                                                | java, py                         | Jun 11, 2024    |
-|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                                 | Easy    |                | [solution](<_114. Flatten Binary Tree to Linked List.md>)                                          | c, py                            | Jun 11, 2024    |
+|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Medium  |                | [solution](<_950. Reveal Cards In Increasing Order.md>)                                            | py                               | Jun 12, 2024    |
+|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Medium  |                | [solution](<_946. Validate Stack Sequences.md>)                                                    | c, py                            | Jun 12, 2024    |
+|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                                           | Medium  |                | [solution](<_921. Minimum Add to Make Parentheses Valid.md>)                                       | java, py                         | Jun 12, 2024    |
+|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Medium  |                | [solution](<_909. Snakes and Ladders.md>)                                                          | py                               | Jun 12, 2024    |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                             | Medium  |                | [solution](<_314. Binary Tree Vertical Order Traversal.md>)                                        | py                               | Jun 12, 2024    |
+| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                                           | Medium  |                | [solution](<_2487. Remove Nodes From Linked List.md>)                                              | py                               | Jun 12, 2024    |
+| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                                                     | Medium  |                | [solution](<_1006. Clumsy Factorial.md>)                                                           | c, py                            | Jun 12, 2024    |
+|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                                           | Medium  |                | [solution](<_71. Simplify Path.md>)                                                                | py                               | Jun 11, 2024    |
+|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Medium  | N150           | [solution](<_150. Evaluate Reverse Polish Notation.md>)                                            | py                               | Jun 11, 2024    |
+|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                             | Medium  | B75, N150      | [solution](<_143. Reorder List.md>)                                                                | java, py                         | Jun 11, 2024    |
+|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                                 | Medium  |                | [solution](<_114. Flatten Binary Tree to Linked List.md>)                                          | c, py                            | Jun 11, 2024    |
 |   84 | [Largest Rectangle in Histogram](<https://leetcode.com/problems/largest-rectangle-in-histogram>)                                                                                         | Hard    | N150           | [solution](<_84. Largest Rectangle in Histogram.md>)                                               | py                               | Jun 11, 2024    |
 |  273 | [Integer to English Words](<https://leetcode.com/problems/integer-to-english-words>)                                                                                                     | Hard    |                | [solution](<_273. Integer to English Words.md>)                                                    | py                               | Jun 11, 2024    |
 | 1122 | [Relative Sort Array](<https://leetcode.com/problems/relative-sort-array>)                                                                                                               | Easy    | Daily          | [solution](<_1122. Relative Sort Array.md>)                                                        | java, py                         | Jun 11, 2024    |
-|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                                       | Easy    |                | [solution](<_8. String to Integer (atoi).md>)                                                      | py                               | Jun 10, 2024    |
-| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                                 | Easy    | Weekly Premium | [solution](<_2083. Substrings That Begin and End With the Same Letter.md>)                         | c, py                            | Jun 10, 2024    |
-| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                                           | Easy    |                | [solution](<_1759. Count Number of Homogenous Substrings.md>)                                      | c, java                          | Jun 10, 2024    |
+|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                                       | Medium  |                | [solution](<_8. String to Integer (atoi).md>)                                                      | py                               | Jun 10, 2024    |
+| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                                 | Medium  | Weekly Premium | [solution](<_2083. Substrings That Begin and End With the Same Letter.md>)                         | c, py                            | Jun 10, 2024    |
+| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                                           | Medium  |                | [solution](<_1759. Count Number of Homogenous Substrings.md>)                                      | c, java                          | Jun 10, 2024    |
 | 2570 | [Merge Two 2D Arrays by Summing Values](<https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values>)                                                                           | Easy    |                | [solution](<_2570. Merge Two 2D Arrays by Summing Values.md>)                                      | c                                | Jun 10, 2024    |
-|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                                               | Easy    |                | [solution](<_227. Basic Calculator II.md>)                                                         | py                               | Jun 10, 2024    |
-| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Easy    |                | [solution](<_1762. Buildings With an Ocean View.md>)                                               | py                               | Jun 10, 2024    |
-| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                                               | Easy    |                | [solution](<_1650. Lowest Common Ancestor of a Binary Tree III.md>)                                | py                               | Jun 10, 2024    |
-| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                                     | Easy    |                | [solution](<_1249. Minimum Remove to Make Valid Parentheses.md>)                                   | py                               | Jun 10, 2024    |
+|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                                               | Medium  |                | [solution](<_227. Basic Calculator II.md>)                                                         | py                               | Jun 10, 2024    |
+| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Medium  |                | [solution](<_1762. Buildings With an Ocean View.md>)                                               | py                               | Jun 10, 2024    |
+| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                                               | Medium  |                | [solution](<_1650. Lowest Common Ancestor of a Binary Tree III.md>)                                | py                               | Jun 10, 2024    |
+| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                                     | Medium  |                | [solution](<_1249. Minimum Remove to Make Valid Parentheses.md>)                                   | py                               | Jun 10, 2024    |
 |  224 | [Basic Calculator](<https://leetcode.com/problems/basic-calculator>)                                                                                                                     | Hard    |                | [solution](<_224. Basic Calculator.md>)                                                            | py                               | Jun 10, 2024    |
-|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Easy    |                | [solution](<_861. Score After Flipping Matrix.md>)                                                 | c, py                            | Jun 10, 2024    |
-| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Easy    |                | [solution](<_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                            | Jun 10, 2024    |
+|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Medium  |                | [solution](<_861. Score After Flipping Matrix.md>)                                                 | c, py                            | Jun 10, 2024    |
+| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Medium  |                | [solution](<_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                            | Jun 10, 2024    |
 | 1051 | [Height Checker](<https://leetcode.com/problems/height-checker>)                                                                                                                         | Easy    | Daily          | [solution](<_1051. Height Checker.md>)                                                             | c, py                            | Jun 10, 2024    |
-| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                                               | Easy    |                | [solution](<_2396. Strictly Palindromic Number.md>)                                                | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
-|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Easy    | Daily          | [solution](<_974. Subarray Sums Divisible by K.md>)                                                | java, py                         | Jun 09, 2024    |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Easy    |                | [solution](<_692. Top K Frequent Words.md>)                                                        | py                               | Jun 09, 2024    |
+| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                                               | Medium  |                | [solution](<_2396. Strictly Palindromic Number.md>)                                                | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
+|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Medium  | Daily          | [solution](<_974. Subarray Sums Divisible by K.md>)                                                | java, py                         | Jun 09, 2024    |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Medium  |                | [solution](<_692. Top K Frequent Words.md>)                                                        | py                               | Jun 09, 2024    |
 | 1284 | [Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](<https://leetcode.com/problems/minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix>)                       | Hard    |                | [solution](<_1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix.md>)            | py                               | Jun 09, 2024    |
 | 2206 | [Divide Array Into Equal Pairs](<https://leetcode.com/problems/divide-array-into-equal-pairs>)                                                                                           | Easy    |                | [solution](<_2206. Divide Array Into Equal Pairs.md>)                                              | c, py                            | Jun 08, 2024    |
-|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Easy    | Daily          | [solution](<_523. Continuous Subarray Sum.md>)                                                     | py                               | Jun 08, 2024    |
-|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Easy    | Daily          | [solution](<_260. Single Number III.md>)                                                           | py                               | Jun 08, 2024    |
-| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Easy    | Weekly Premium | [solution](<_1885. Count Pairs in Two Arrays.md>)                                                  | py                               | Jun 08, 2024    |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Easy    | Daily          | [solution](<_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                               | Jun 08, 2024    |
-| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Easy    | Daily          | [solution](<_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                               | Jun 08, 2024    |
+|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Medium  | Daily          | [solution](<_523. Continuous Subarray Sum.md>)                                                     | py                               | Jun 08, 2024    |
+|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Medium  | Daily          | [solution](<_260. Single Number III.md>)                                                           | py                               | Jun 08, 2024    |
+| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Medium  | Weekly Premium | [solution](<_1885. Count Pairs in Two Arrays.md>)                                                  | py                               | Jun 08, 2024    |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Medium  | Daily          | [solution](<_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                               | Jun 08, 2024    |
+| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>)                 | Medium  | Daily          | [solution](<_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>)         | py                               | Jun 08, 2024    |
 | 1002 | [Find Common Characters](<https://leetcode.com/problems/find-common-characters>)                                                                                                         | Easy    | Daily          | [solution](<_1002. Find Common Characters.md>)                                                     | py                               | Jun 08, 2024    |
-| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Easy    |                | [solution](<_1535. Find the Winner of an Array Game.md>)                                           | py                               | Jun 08, 2024    |
-|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                                             | Easy    |                | [solution](<_77. Combinations.md>)                                                                 | py                               | Jun 07, 2024    |
-|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Easy    |                | [solution](<_475. Heaters.md>)                                                                     | py                               | Jun 07, 2024    |
-|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Easy    | N150           | [solution](<_46. Permutations.md>)                                                                 | py                               | Jun 07, 2024    |
-|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                                                                                   | Easy    |                | [solution](<_184. Department Highest Salary.md>)                                                   | sql                              | Jun 07, 2024    |
-| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                                                                                   | Easy    |                | [solution](<_1783. Grand Slam Titles.md>)                                                          | sql                              | Jun 07, 2024    |
-|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                                                     | Easy    |                | [solution](<_129. Sum Root to Leaf Numbers.md>)                                                    | py                               | Jun 07, 2024    |
+| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Medium  |                | [solution](<_1535. Find the Winner of an Array Game.md>)                                           | py                               | Jun 08, 2024    |
+|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                                             | Medium  |                | [solution](<_77. Combinations.md>)                                                                 | py                               | Jun 07, 2024    |
+|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Medium  |                | [solution](<_475. Heaters.md>)                                                                     | py                               | Jun 07, 2024    |
+|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Medium  | N150           | [solution](<_46. Permutations.md>)                                                                 | py                               | Jun 07, 2024    |
+|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                                                                                   | Medium  |                | [solution](<_184. Department Highest Salary.md>)                                                   | sql                              | Jun 07, 2024    |
+| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                                                                                   | Medium  |                | [solution](<_1783. Grand Slam Titles.md>)                                                          | sql                              | Jun 07, 2024    |
+|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                                                     | Medium  |                | [solution](<_129. Sum Root to Leaf Numbers.md>)                                                    | py                               | Jun 07, 2024    |
 |   69 | [Sqrt(x)](<https://leetcode.com/problems/sqrtx>)                                                                                                                                         | Easy    |                | [solution](<_69. Sqrt(x).md>)                                                                      | py                               | Jun 07, 2024    |
 |  196 | [Delete Duplicate Emails](<https://leetcode.com/problems/delete-duplicate-emails>)                                                                                                       | Easy    |                | [solution](<_196. Delete Duplicate Emails.md>)                                                     | py, sql                          | Jun 07, 2024    |
 |  125 | [Valid Palindrome](<https://leetcode.com/problems/valid-palindrome>)                                                                                                                     | Easy    | B75, N150      | [solution](<_125. Valid Palindrome.md>)                                                            | c, py                            | Jun 07, 2024    |
 |  111 | [Minimum Depth of Binary Tree](<https://leetcode.com/problems/minimum-depth-of-binary-tree>)                                                                                             | Easy    |                | [solution](<_111. Minimum Depth of Binary Tree.md>)                                                | c, java                          | Jun 07, 2024    |
-|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                                   | Easy    |                | [solution](<_535. Encode and Decode TinyURL.md>)                                                   | py                               | Jun 07, 2024    |
-| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Easy    |                | [solution](<_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                               | Jun 07, 2024    |
-| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Easy    |                | [solution](<_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                               | Jun 07, 2024    |
-| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                                                       | Easy    |                | [solution](<_2265. Count Nodes Equal to Average of Subtree.md>)                                    | js, py                           | Jun 07, 2024    |
-| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                                                 | Easy    |                | [solution](<_1302. Deepest Leaves Sum.md>)                                                         | c, js, py                        | Jun 07, 2024    |
-|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                               | Easy    |                | [solution](<_24. Swap Nodes in Pairs.md>)                                                          | c                                | Jun 07, 2024    |
-| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                                       | Easy    |                | [solution](<_2095. Delete the Middle Node of a Linked List.md>)                                    | c, java                          | Jun 07, 2024    |
-|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                                     | Easy    | B75, N150      | [solution](<_19. Remove Nth Node From End of List.md>)                                             | c, java, py                      | Jun 07, 2024    |
-| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                                       | Easy    |                | [solution](<_1721. Swapping Nodes in a Linked List.md>)                                            | c                                | Jun 07, 2024    |
+|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                                   | Medium  |                | [solution](<_535. Encode and Decode TinyURL.md>)                                                   | py                               | Jun 07, 2024    |
+| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Medium  |                | [solution](<_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                               | Jun 07, 2024    |
+| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Medium  |                | [solution](<_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                               | Jun 07, 2024    |
+| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                                                       | Medium  |                | [solution](<_2265. Count Nodes Equal to Average of Subtree.md>)                                    | js, py                           | Jun 07, 2024    |
+| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                                                 | Medium  |                | [solution](<_1302. Deepest Leaves Sum.md>)                                                         | c, js, py                        | Jun 07, 2024    |
+|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                               | Medium  |                | [solution](<_24. Swap Nodes in Pairs.md>)                                                          | c                                | Jun 07, 2024    |
+| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                                       | Medium  |                | [solution](<_2095. Delete the Middle Node of a Linked List.md>)                                    | c, java                          | Jun 07, 2024    |
+|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                                     | Medium  | B75, N150      | [solution](<_19. Remove Nth Node From End of List.md>)                                             | c, java, py                      | Jun 07, 2024    |
+| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                                       | Medium  |                | [solution](<_1721. Swapping Nodes in a Linked List.md>)                                            | c                                | Jun 07, 2024    |
 |   25 | [Reverse Nodes in k-Group](<https://leetcode.com/problems/reverse-nodes-in-k-group>)                                                                                                     | Hard    | N150           | [solution](<_25. Reverse Nodes in k-Group.md>)                                                     | c                                | Jun 07, 2024    |
 | 1474 | [Delete N Nodes After M Nodes of a Linked List](<https://leetcode.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list>)                                                           | Easy    |                | [solution](<_1474. Delete N Nodes After M Nodes of a Linked List.md>)                              | c, java                          | Jun 07, 2024    |
-|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Easy    | Daily          | [solution](<_648. Replace Words.md>)                                                               | java, py                         | Jun 07, 2024    |
-| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                                 | Easy    |                | [solution](<_3064. Guess the Number Using Bitwise Questions I.md>)                                 | c, py                            | Jun 06, 2024    |
-| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Easy    |                | [solution](<_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py                      | Jun 06, 2024    |
-| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                                         | Easy    |                | [solution](<_1265. Print Immutable Linked List in Reverse.md>)                                     | c, py                            | Jun 06, 2024    |
+|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Medium  | Daily          | [solution](<_648. Replace Words.md>)                                                               | java, py                         | Jun 07, 2024    |
+| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                                 | Medium  |                | [solution](<_3064. Guess the Number Using Bitwise Questions I.md>)                                 | c, py                            | Jun 06, 2024    |
+| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Medium  |                | [solution](<_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py                      | Jun 06, 2024    |
+| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                                         | Medium  |                | [solution](<_1265. Print Immutable Linked List in Reverse.md>)                                     | c, py                            | Jun 06, 2024    |
 | 1822 | [Sign of the Product of an Array](<https://leetcode.com/problems/sign-of-the-product-of-an-array>)                                                                                       | Easy    |                | [solution](<_1822. Sign of the Product of an Array.md>)                                            | c                                | Jun 06, 2024    |
 | 1748 | [Sum of Unique Elements](<https://leetcode.com/problems/sum-of-unique-elements>)                                                                                                         | Easy    |                | [solution](<_1748. Sum of Unique Elements.md>)                                                     | c                                | Jun 06, 2024    |
 | 1684 | [Count the Number of Consistent Strings](<https://leetcode.com/problems/count-the-number-of-consistent-strings>)                                                                         | Easy    |                | [solution](<_1684. Count the Number of Consistent Strings.md>)                                     | c, py                            | Jun 06, 2024    |
-|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Easy    | Daily, N150    | [solution](<_846. Hand of Straights.md>)                                                           | py                               | Jun 06, 2024    |
+|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Medium  | Daily, N150    | [solution](<_846. Hand of Straights.md>)                                                           | py                               | Jun 06, 2024    |
 | 2942 | [Find Words Containing Character](<https://leetcode.com/problems/find-words-containing-character>)                                                                                       | Easy    |                | [solution](<_2942. Find Words Containing Character.md>)                                            | c                                | Jun 06, 2024    |
 | 1502 | [Can Make Arithmetic Progression From Sequence](<https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence>)                                                           | Easy    |                | [solution](<_1502. Can Make Arithmetic Progression From Sequence.md>)                              | c, py                            | Jun 04, 2024    |
 | 1460 | [Make Two Arrays Equal by Reversing Subarrays](<https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays>)                                                             | Easy    |                | [solution](<_1460. Make Two Arrays Equal by Reversing Subarrays.md>)                               | c                                | Jun 04, 2024    |
@@ -392,45 +392,45 @@ Calculations are based on the date of the first solve.
 | 2011 | [Final Value of Variable After Performing Operations](<https://leetcode.com/problems/final-value-of-variable-after-performing-operations>)                                               | Easy    |                | [solution](<_2011. Final Value of Variable After Performing Operations.md>)                        | c                                | Jun 03, 2024    |
 | 1929 | [Concatenation of Array](<https://leetcode.com/problems/concatenation-of-array>)                                                                                                         | Easy    |                | [solution](<_1929. Concatenation of Array.md>)                                                     | c, java, py                      | Jun 03, 2024    |
 | 1470 | [Shuffle the Array](<https://leetcode.com/problems/shuffle-the-array>)                                                                                                                   | Easy    |                | [solution](<_1470. Shuffle the Array.md>)                                                          | c                                | Jun 03, 2024    |
-| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Easy    | Daily          | [solution](<_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                      | Jun 03, 2024    |
+| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                                       | Medium  | Daily          | [solution](<_2486. Append Characters to String to Make Subsequence.md>)                            | c, java, py                      | Jun 03, 2024    |
 |  374 | [Guess Number Higher or Lower](<https://leetcode.com/problems/guess-number-higher-or-lower>)                                                                                             | Easy    |                | [solution](<_374. Guess Number Higher or Lower.md>)                                                | java, py                         | Jun 02, 2024    |
 |  771 | [Jewels and Stones](<https://leetcode.com/problems/jewels-and-stones>)                                                                                                                   | Easy    |                | [solution](<_771. Jewels and Stones.md>)                                                           | java, py                         | Jun 02, 2024    |
-|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Easy    | N150           | [solution](<_78. Subsets.md>)                                                                      | py                               | Jun 02, 2024    |
-|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Easy    |                | [solution](<_189. Rotate Array.md>)                                                                | py                               | Jun 02, 2024    |
+|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Medium  | N150           | [solution](<_78. Subsets.md>)                                                                      | py                               | Jun 02, 2024    |
+|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Medium  |                | [solution](<_189. Rotate Array.md>)                                                                | py                               | Jun 02, 2024    |
 |  412 | [Fizz Buzz](<https://leetcode.com/problems/fizz-buzz>)                                                                                                                                   | Easy    |                | [solution](<_412. Fizz Buzz.md>)                                                                   | java, py                         | Jun 02, 2024    |
 |  408 | [Valid Word Abbreviation](<https://leetcode.com/problems/valid-word-abbreviation>)                                                                                                       | Easy    |                | [solution](<_408. Valid Word Abbreviation.md>)                                                     | py                               | Jun 02, 2024    |
-| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                                   | Easy    |                | [solution](<_1698. Number of Distinct Substrings in a String.md>)                                  | java, py                         | Jun 02, 2024    |
+| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                                   | Medium  |                | [solution](<_1698. Number of Distinct Substrings in a String.md>)                                  | java, py                         | Jun 02, 2024    |
 |   27 | [Remove Element](<https://leetcode.com/problems/remove-element>)                                                                                                                         | Easy    |                | [solution](<_27. Remove Element.md>)                                                               | java, py                         | Jun 02, 2024    |
 | 1700 | [Number of Students Unable to Eat Lunch](<https://leetcode.com/problems/number-of-students-unable-to-eat-lunch>)                                                                         | Easy    |                | [solution](<_1700. Number of Students Unable to Eat Lunch.md>)                                     | py                               | Jun 02, 2024    |
-| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                                             | Easy    |                | [solution](<_2390. Removing Stars From a String.md>)                                               | java, py                         | Jun 02, 2024    |
-| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                                                     | Easy    |                | [solution](<_1490. Clone N-ary Tree.md>)                                                           | java, py                         | Jun 02, 2024    |
+| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                                             | Medium  |                | [solution](<_2390. Removing Stars From a String.md>)                                               | java, py                         | Jun 02, 2024    |
+| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                                                     | Medium  |                | [solution](<_1490. Clone N-ary Tree.md>)                                                           | java, py                         | Jun 02, 2024    |
 |  344 | [Reverse String](<https://leetcode.com/problems/reverse-string>)                                                                                                                         | Easy    | Daily          | [solution](<_344. Reverse String.md>)                                                              | java, py                         | Jun 02, 2024    |
-| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                                           | Easy    |                | [solution](<_1525. Number of Good Ways to Split a String.md>)                                      | py                               | Jun 01, 2024    |
+| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                                           | Medium  |                | [solution](<_1525. Number of Good Ways to Split a String.md>)                                      | py                               | Jun 01, 2024    |
 |  645 | [Set Mismatch](<https://leetcode.com/problems/set-mismatch>)                                                                                                                             | Easy    |                | [solution](<_645. Set Mismatch.md>)                                                                | java, py                         | Jun 01, 2024    |
 | 1455 | [Check If a Word Occurs As a Prefix of Any Word in a Sentence](<https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence>)                             | Easy    |                | [solution](<_1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence.md>)               | py                               | Jun 01, 2024    |
 | 1436 | [Destination City](<https://leetcode.com/problems/destination-city>)                                                                                                                     | Easy    |                | [solution](<_1436. Destination City.md>)                                                           | java                             | Jun 01, 2024    |
 | 1351 | [Count Negative Numbers in a Sorted Matrix](<https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix>)                                                                   | Easy    |                | [solution](<_1351. Count Negative Numbers in a Sorted Matrix.md>)                                  | java, py                         | Jun 01, 2024    |
 |  744 | [Find Smallest Letter Greater Than Target](<https://leetcode.com/problems/find-smallest-letter-greater-than-target>)                                                                     | Easy    |                | [solution](<_744. Find Smallest Letter Greater Than Target.md>)                                    | java, py                         | Jun 01, 2024    |
-| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Easy    | Weekly Premium | [solution](<_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                         | Jun 01, 2024    |
+| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Medium  | Weekly Premium | [solution](<_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                         | Jun 01, 2024    |
 | 3110 | [Score of a String](<https://leetcode.com/problems/score-of-a-string>)                                                                                                                   | Easy    | Daily          | [solution](<_3110. Score of a String.md>)                                                          | java, py                         | Jun 01, 2024    |
 | 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                                                             | Easy    |                | [solution](<_2389. Longest Subsequence With Limited Sum.md>)                                       | py                               | Jun 01, 2024    |
-|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                                           | Easy    |                | [solution](<_166. Fraction to Recurring Decimal.md>)                                               | py                               | May 31, 2024    |
-| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Easy    |                | [solution](<_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                               | May 31, 2024    |
+|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                                           | Medium  |                | [solution](<_166. Fraction to Recurring Decimal.md>)                                               | py                               | May 31, 2024    |
+| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Medium  |                | [solution](<_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                               | May 31, 2024    |
 | 1184 | [Distance Between Bus Stops](<https://leetcode.com/problems/distance-between-bus-stops>)                                                                                                 | Easy    |                | [solution](<_1184. Distance Between Bus Stops.md>)                                                 | py                               | May 31, 2024    |
-| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Easy    |                | [solution](<_2433. Find The Original Array of Prefix Xor.md>)                                      | py                               | May 31, 2024    |
+| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Medium  |                | [solution](<_2433. Find The Original Array of Prefix Xor.md>)                                      | py                               | May 31, 2024    |
 | 2395 | [Find Subarrays With Equal Sum](<https://leetcode.com/problems/find-subarrays-with-equal-sum>)                                                                                           | Easy    |                | [solution](<_2395. Find Subarrays With Equal Sum.md>)                                              | py                               | May 31, 2024    |
 | 2248 | [Intersection of Multiple Arrays](<https://leetcode.com/problems/intersection-of-multiple-arrays>)                                                                                       | Easy    |                | [solution](<_2248. Intersection of Multiple Arrays.md>)                                            | py                               | May 31, 2024    |
 | 2886 | [Change Data Type](<https://leetcode.com/problems/change-data-type>)                                                                                                                     | Easy    |                | [solution](<_2886. Change Data Type.md>)                                                           | py                               | May 30, 2024    |
-|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                                       | Easy    | N150           | [solution](<_7. Reverse Integer.md>)                                                               | py                               | May 29, 2024    |
-|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                                       | Easy    |                | [solution](<_651. 4 Keys Keyboard.md>)                                                             | py                               | May 29, 2024    |
+|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                                       | Medium  | N150           | [solution](<_7. Reverse Integer.md>)                                                               | py                               | May 29, 2024    |
+|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                                       | Medium  |                | [solution](<_651. 4 Keys Keyboard.md>)                                                             | py                               | May 29, 2024    |
 |  414 | [Third Maximum Number](<https://leetcode.com/problems/third-maximum-number>)                                                                                                             | Easy    |                | [solution](<_414. Third Maximum Number.md>)                                                        | py                               | May 23, 2024    |
 |  345 | [Reverse Vowels of a String](<https://leetcode.com/problems/reverse-vowels-of-a-string>)                                                                                                 | Easy    |                | [solution](<_345. Reverse Vowels of a String.md>)                                                  | py                               | May 23, 2024    |
 | 3074 | [Apple Redistribution into Boxes](<https://leetcode.com/problems/apple-redistribution-into-boxes>)                                                                                       | Easy    |                | [solution](<_3074. Apple Redistribution into Boxes.md>)                                            | py                               | May 23, 2024    |
 |  292 | [Nim Game](<https://leetcode.com/problems/nim-game>)                                                                                                                                     | Easy    |                | [solution](<_292. Nim Game.md>)                                                                    | py                               | May 23, 2024    |
-|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Easy    | B75, N150      | [solution](<_3. Longest Substring Without Repeating Characters.md>)                                | java                             | May 22, 2024    |
-| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Easy    |                | [solution](<_2679. Sum in a Matrix.md>)                                                            | java                             | May 22, 2024    |
-|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                                       | Easy    | N150           | [solution](<_2. Add Two Numbers.md>)                                                               | java                             | May 22, 2024    |
-|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                                                                           | Easy    |                | [solution](<_176. Second Highest Salary.md>)                                                       | sql                              | May 22, 2024    |
+|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Medium  | B75, N150      | [solution](<_3. Longest Substring Without Repeating Characters.md>)                                | java                             | May 22, 2024    |
+| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Medium  |                | [solution](<_2679. Sum in a Matrix.md>)                                                            | java                             | May 22, 2024    |
+|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                                       | Medium  | N150           | [solution](<_2. Add Two Numbers.md>)                                                               | java                             | May 22, 2024    |
+|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                                                                           | Medium  |                | [solution](<_176. Second Highest Salary.md>)                                                       | sql                              | May 22, 2024    |
 |  577 | [Employee Bonus](<https://leetcode.com/problems/employee-bonus>)                                                                                                                         | Easy    |                | [solution](<_577. Employee Bonus.md>)                                                              | sql                              | May 22, 2024    |
 | 2678 | [Number of Senior Citizens](<https://leetcode.com/problems/number-of-senior-citizens>)                                                                                                   | Easy    |                | [solution](<_2678. Number of Senior Citizens.md>)                                                  | java                             | May 22, 2024    |
 |   26 | [Remove Duplicates from Sorted Array](<https://leetcode.com/problems/remove-duplicates-from-sorted-array>)                                                                               | Easy    |                | [solution](<_26. Remove Duplicates from Sorted Array.md>)                                          | java                             | May 22, 2024    |
@@ -438,9 +438,9 @@ Calculations are based on the date of the first solve.
 |   20 | [Valid Parentheses](<https://leetcode.com/problems/valid-parentheses>)                                                                                                                   | Easy    | B75, N150      | [solution](<_20. Valid Parentheses.md>)                                                            | java                             | May 22, 2024    |
 |  175 | [Combine Two Tables](<https://leetcode.com/problems/combine-two-tables>)                                                                                                                 | Easy    |                | [solution](<_175. Combine Two Tables.md>)                                                          | py, sql                          | May 22, 2024    |
 |    1 | [Two Sum](<https://leetcode.com/problems/two-sum>)                                                                                                                                       | Easy    | B75, N150      | [solution](<_1. Two Sum.md>)                                                                       | java, py                         | May 22, 2024    |
-|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Easy    |                | [solution](<_611. Valid Triangle Number.md>)                                                       | py                               | May 22, 2024    |
-|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Easy    |                | [solution](<_251. Flatten 2D Vector.md>)                                                           | py                               | May 22, 2024    |
-|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                                                                                 | Easy    |                | [solution](<_177. Nth Highest Salary.md>)                                                          | sql                              | May 22, 2024    |
+|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Medium  |                | [solution](<_611. Valid Triangle Number.md>)                                                       | py                               | May 22, 2024    |
+|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Medium  |                | [solution](<_251. Flatten 2D Vector.md>)                                                           | py                               | May 22, 2024    |
+|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                                                                                 | Medium  |                | [solution](<_177. Nth Highest Salary.md>)                                                          | sql                              | May 22, 2024    |
 |    9 | [Palindrome Number](<https://leetcode.com/problems/palindrome-number>)                                                                                                                   | Easy    |                | [solution](<_9. Palindrome Number.md>)                                                             | java                             | May 22, 2024    |
 |   70 | [Climbing Stairs](<https://leetcode.com/problems/climbing-stairs>)                                                                                                                       | Easy    | B75, N150      | [solution](<_70. Climbing Stairs.md>)                                                              | py                               | May 22, 2024    |
 |  619 | [Biggest Single Number](<https://leetcode.com/problems/biggest-single-number>)                                                                                                           | Easy    |                | [solution](<_619. Biggest Single Number.md>)                                                       | sql                              | May 22, 2024    |
diff --git a/markdowns/by_topic/Array.md b/markdowns/by_topic/Array.md
index 60ab3f92..15df48c4 100644
--- a/markdowns/by_topic/Array.md
+++ b/markdowns/by_topic/Array.md
@@ -9,204 +9,204 @@
 |    1 | [Two Sum](<https://leetcode.com/problems/two-sum>)                                                                                                                                       | Easy    | B75, N150      | [solution](<../_1. Two Sum.md>)                                                                       | java, py                 | May 22, 2024    |
 |   26 | [Remove Duplicates from Sorted Array](<https://leetcode.com/problems/remove-duplicates-from-sorted-array>)                                                                               | Easy    |                | [solution](<../_26. Remove Duplicates from Sorted Array.md>)                                          | java                     | May 22, 2024    |
 |   27 | [Remove Element](<https://leetcode.com/problems/remove-element>)                                                                                                                         | Easy    |                | [solution](<../_27. Remove Element.md>)                                                               | java, py                 | Jun 02, 2024    |
-|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Easy    | N150           | [solution](<../_36. Valid Sudoku.md>)                                                                 | py                       | Jun 13, 2024    |
-|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Easy    | B75, N150      | [solution](<../_39. Combination Sum.md>)                                                              | py                       | Jul 16, 2024    |
-|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Easy    | N150           | [solution](<../_46. Permutations.md>)                                                                 | py                       | Jun 07, 2024    |
-|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Easy    | B75, N150      | [solution](<../_48. Rotate Image.md>)                                                                 | c, py                    | Jun 15, 2024    |
-|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Easy    | B75, N150      | [solution](<../_49. Group Anagrams.md>)                                                               | py                       | Jun 13, 2024    |
-|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Easy    | B75, N150      | [solution](<../_56. Merge Intervals.md>)                                                              | py                       | Jun 19, 2024    |
-|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Easy    | B75, N150      | [solution](<../_57. Insert Interval.md>)                                                              | py                       | Jun 19, 2024    |
+|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                                             | Medium  | N150           | [solution](<../_36. Valid Sudoku.md>)                                                                 | py                       | Jun 13, 2024    |
+|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                                                       | Medium  | B75, N150      | [solution](<../_39. Combination Sum.md>)                                                              | py                       | Jul 16, 2024    |
+|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                                             | Medium  | N150           | [solution](<../_46. Permutations.md>)                                                                 | py                       | Jun 07, 2024    |
+|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                                             | Medium  | B75, N150      | [solution](<../_48. Rotate Image.md>)                                                                 | c, py                    | Jun 15, 2024    |
+|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                                         | Medium  | B75, N150      | [solution](<../_49. Group Anagrams.md>)                                                               | py                       | Jun 13, 2024    |
+|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                                       | Medium  | B75, N150      | [solution](<../_56. Merge Intervals.md>)                                                              | py                       | Jun 19, 2024    |
+|   57 | [Insert Interval](<https://leetcode.com/problems/insert-interval>)                                                                                                                       | Medium  | B75, N150      | [solution](<../_57. Insert Interval.md>)                                                              | py                       | Jun 19, 2024    |
 |   66 | [Plus One](<https://leetcode.com/problems/plus-one>)                                                                                                                                     | Easy    | N150           | [solution](<../_66. Plus One.md>)                                                                     | c                        | Jun 03, 2024    |
-|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Easy    | N150           | [solution](<../_74. Search a 2D Matrix.md>)                                                           | py                       | Jun 15, 2024    |
-|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Easy    | Daily          | [solution](<../_75. Sort Colors.md>)                                                                  | c, py                    | Jun 12, 2024    |
-|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Easy    | N150           | [solution](<../_78. Subsets.md>)                                                                      | py                       | Jun 02, 2024    |
-|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Easy    | B75, N150      | [solution](<../_79. Word Search.md>)                                                                  | py                       | Jun 27, 2024    |
+|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                                                 | Medium  | N150           | [solution](<../_74. Search a 2D Matrix.md>)                                                           | py                       | Jun 15, 2024    |
+|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                               | Medium  | Daily          | [solution](<../_75. Sort Colors.md>)                                                                  | c, py                    | Jun 12, 2024    |
+|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                                       | Medium  | N150           | [solution](<../_78. Subsets.md>)                                                                      | py                       | Jun 02, 2024    |
+|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                                               | Medium  | B75, N150      | [solution](<../_79. Word Search.md>)                                                                  | py                       | Jun 27, 2024    |
 |   84 | [Largest Rectangle in Histogram](<https://leetcode.com/problems/largest-rectangle-in-histogram>)                                                                                         | Hard    | N150           | [solution](<../_84. Largest Rectangle in Histogram.md>)                                               | py                       | Jun 11, 2024    |
-|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Easy    | N150           | [solution](<../_90. Subsets II.md>)                                                                   | py                       | Jul 03, 2024    |
+|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                                 | Medium  | N150           | [solution](<../_90. Subsets II.md>)                                                                   | py                       | Jul 03, 2024    |
 |  118 | [Pascal's Triangle](<https://leetcode.com/problems/pascals-triangle>)                                                                                                                    | Easy    |                | [solution](<../_118. Pascal's Triangle.md>)                                                           | py                       | May 22, 2024    |
 |  121 | [Best Time to Buy and Sell Stock](<https://leetcode.com/problems/best-time-to-buy-and-sell-stock>)                                                                                       | Easy    | B75, N150      | [solution](<../_121. Best Time to Buy and Sell Stock.md>)                                             | py                       | Jul 03, 2024    |
-|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Easy    | B75, N150      | [solution](<../_128. Longest Consecutive Sequence.md>)                                                | java, py                 | Jun 13, 2024    |
+|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                                             | Medium  | B75, N150      | [solution](<../_128. Longest Consecutive Sequence.md>)                                                | java, py                 | Jun 13, 2024    |
 |  136 | [Single Number](<https://leetcode.com/problems/single-number>)                                                                                                                           | Easy    | N150           | [solution](<../_136. Single Number.md>)                                                               | py                       | Jul 03, 2024    |
-|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Easy    | N150           | [solution](<../_150. Evaluate Reverse Polish Notation.md>)                                            | py                       | Jun 11, 2024    |
-|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Easy    | N150           | [solution](<../_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                       | Jun 14, 2024    |
-|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Easy    |                | [solution](<../_189. Rotate Array.md>)                                                                | py                       | Jun 02, 2024    |
-|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Easy    | B75, N150      | [solution](<../_198. House Robber.md>)                                                                | py                       | Jul 17, 2024    |
-|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Easy    | B75, N150      | [solution](<../_200. Number of Islands.md>)                                                           | py                       | Jun 17, 2024    |
+|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                                                     | Medium  | N150           | [solution](<../_150. Evaluate Reverse Polish Notation.md>)                                            | py                       | Jun 11, 2024    |
+|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                                                   | Medium  | N150           | [solution](<../_167. Two Sum II - Input Array Is Sorted.md>)                                          | py                       | Jun 14, 2024    |
+|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                                             | Medium  |                | [solution](<../_189. Rotate Array.md>)                                                                | py                       | Jun 02, 2024    |
+|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                                             | Medium  | B75, N150      | [solution](<../_198. House Robber.md>)                                                                | py                       | Jul 17, 2024    |
+|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                                                   | Medium  | B75, N150      | [solution](<../_200. Number of Islands.md>)                                                           | py                       | Jun 17, 2024    |
 |  212 | [Word Search II](<https://leetcode.com/problems/word-search-ii>)                                                                                                                         | Hard    | B75, N150      | [solution](<../_212. Word Search II.md>)                                                              | py                       | Jun 27, 2024    |
 |  217 | [Contains Duplicate](<https://leetcode.com/problems/contains-duplicate>)                                                                                                                 | Easy    | B75, N150      | [solution](<../_217. Contains Duplicate.md>)                                                          | py                       | Jun 12, 2024    |
-|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Easy    | B75, N150      | [solution](<../_238. Product of Array Except Self.md>)                                                | py                       | Jun 13, 2024    |
+|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                                             | Medium  | B75, N150      | [solution](<../_238. Product of Array Except Self.md>)                                                | py                       | Jun 13, 2024    |
 |  239 | [Sliding Window Maximum](<https://leetcode.com/problems/sliding-window-maximum>)                                                                                                         | Hard    | N150           | [solution](<../_239. Sliding Window Maximum.md>)                                                      | py                       | Jun 04, 2024    |
-|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Easy    |                | [solution](<../_251. Flatten 2D Vector.md>)                                                           | py                       | May 22, 2024    |
-|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Easy    | Daily          | [solution](<../_260. Single Number III.md>)                                                           | py                       | Jun 08, 2024    |
-|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Easy    | B75, N150      | [solution](<../_271. Encode and Decode Strings.md>)                                                   | py                       | Jun 13, 2024    |
-|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Easy    | N150           | [solution](<../_286. Walls and Gates.md>)                                                             | py                       | Jun 15, 2024    |
-|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Easy    | N150           | [solution](<../_287. Find the Duplicate Number.md>)                                                   | c                        | Jun 26, 2024    |
+|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                                                   | Medium  |                | [solution](<../_251. Flatten 2D Vector.md>)                                                           | py                       | May 22, 2024    |
+|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                                   | Medium  | Daily          | [solution](<../_260. Single Number III.md>)                                                           | py                       | Jun 08, 2024    |
+|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                                   | Medium  | B75, N150      | [solution](<../_271. Encode and Decode Strings.md>)                                                   | py                       | Jun 13, 2024    |
+|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                                       | Medium  | N150           | [solution](<../_286. Walls and Gates.md>)                                                             | py                       | Jun 15, 2024    |
+|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                                   | Medium  | N150           | [solution](<../_287. Find the Duplicate Number.md>)                                                   | c                        | Jun 26, 2024    |
 |  330 | [Patching Array](<https://leetcode.com/problems/patching-array>)                                                                                                                         | Hard    | Daily          | [solution](<../_330. Patching Array.md>)                                                              | py                       | Jun 16, 2024    |
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Easy    | B75, N150      | [solution](<../_347. Top K Frequent Elements.md>)                                                     | py                       | Jun 13, 2024    |
-|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Easy    |                | [solution](<../_348. Design Tic-Tac-Toe.md>)                                                          | py                       | Jul 05, 2024    |
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Medium  | B75, N150      | [solution](<../_347. Top K Frequent Elements.md>)                                                     | py                       | Jun 13, 2024    |
+|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                                                 | Medium  |                | [solution](<../_348. Design Tic-Tac-Toe.md>)                                                          | py                       | Jul 05, 2024    |
 |  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                                           | Easy    | Daily          | [solution](<../_350. Intersection of Two Arrays II.md>)                                               | java, py                 | Jul 02, 2024    |
-|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Easy    |                | [solution](<../_353. Design Snake Game.md>)                                                           | py                       | Jun 28, 2024    |
-|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Easy    |                | [solution](<../_380. Insert Delete GetRandom O(1).md>)                                                | java                     | Jul 06, 2024    |
+|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Medium  |                | [solution](<../_353. Design Snake Game.md>)                                                           | py                       | Jun 28, 2024    |
+|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                                               | Medium  |                | [solution](<../_380. Insert Delete GetRandom O(1).md>)                                                | java                     | Jul 06, 2024    |
 |  381 | [Insert Delete GetRandom O(1) - Duplicates allowed](<https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed>)                                                       | Hard    |                | [solution](<../_381. Insert Delete GetRandom O(1) - Duplicates allowed.md>)                           | java                     | Jul 06, 2024    |
-|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Easy    |                | [solution](<../_384. Shuffle an Array.md>)                                                            | py                       | Jun 29, 2024    |
+|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                                                     | Medium  |                | [solution](<../_384. Shuffle an Array.md>)                                                            | py                       | Jun 29, 2024    |
 |  414 | [Third Maximum Number](<https://leetcode.com/problems/third-maximum-number>)                                                                                                             | Easy    |                | [solution](<../_414. Third Maximum Number.md>)                                                        | py                       | May 23, 2024    |
-|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Easy    |                | [solution](<../_419. Battleships in a Board.md>)                                                      | c, py                    | Jun 24, 2024    |
-|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Easy    |                | [solution](<../_475. Heaters.md>)                                                                     | py                       | Jun 07, 2024    |
+|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                                         | Medium  |                | [solution](<../_419. Battleships in a Board.md>)                                                      | c, py                    | Jun 24, 2024    |
+|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                                       | Medium  |                | [solution](<../_475. Heaters.md>)                                                                     | py                       | Jun 07, 2024    |
 |  502 | [IPO](<https://leetcode.com/problems/ipo>)                                                                                                                                               | Hard    | Daily          | [solution](<../_502. IPO.md>)                                                                         | py                       | Jun 15, 2024    |
-|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Easy    |                | [solution](<../_503. Next Greater Element II.md>)                                                     | py                       | Jul 05, 2024    |
-|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Easy    | Daily          | [solution](<../_523. Continuous Subarray Sum.md>)                                                     | py                       | Jun 08, 2024    |
-|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Easy    |                | [solution](<../_540. Single Element in a Sorted Array.md>)                                            | py                       | Jul 05, 2024    |
-|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Easy    |                | [solution](<../_542. 01 Matrix.md>)                                                                   | py                       | Jun 26, 2024    |
-|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Easy    |                | [solution](<../_565. Array Nesting.md>)                                                               | py                       | Jul 02, 2024    |
-|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Easy    |                | [solution](<../_611. Valid Triangle Number.md>)                                                       | py                       | May 22, 2024    |
-|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Easy    |                | [solution](<../_616. Add Bold Tag in String.md>)                                                      | py                       | Jun 28, 2024    |
-|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Easy    |                | [solution](<../_622. Design Circular Queue.md>)                                                       | py                       | Jul 06, 2024    |
+|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                                                       | Medium  |                | [solution](<../_503. Next Greater Element II.md>)                                                     | py                       | Jul 05, 2024    |
+|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                                       | Medium  | Daily          | [solution](<../_523. Continuous Subarray Sum.md>)                                                     | py                       | Jun 08, 2024    |
+|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                                                                     | Medium  |                | [solution](<../_540. Single Element in a Sorted Array.md>)                                            | py                       | Jul 05, 2024    |
+|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                                                   | Medium  |                | [solution](<../_542. 01 Matrix.md>)                                                                   | py                       | Jun 26, 2024    |
+|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                                                           | Medium  |                | [solution](<../_565. Array Nesting.md>)                                                               | py                       | Jul 02, 2024    |
+|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                                           | Medium  |                | [solution](<../_611. Valid Triangle Number.md>)                                                       | py                       | May 22, 2024    |
+|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                                         | Medium  |                | [solution](<../_616. Add Bold Tag in String.md>)                                                      | py                       | Jun 28, 2024    |
+|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Medium  |                | [solution](<../_622. Design Circular Queue.md>)                                                       | py                       | Jul 06, 2024    |
 |  645 | [Set Mismatch](<https://leetcode.com/problems/set-mismatch>)                                                                                                                             | Easy    |                | [solution](<../_645. Set Mismatch.md>)                                                                | java, py                 | Jun 01, 2024    |
-|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Easy    | Daily          | [solution](<../_648. Replace Words.md>)                                                               | java, py                 | Jun 07, 2024    |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Easy    |                | [solution](<../_654. Maximum Binary Tree.md>)                                                         | py                       | Jun 12, 2024    |
-|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Easy    |                | [solution](<../_665. Non-decreasing Array.md>)                                                        | java, py                 | Jun 14, 2024    |
-|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Easy    |                | [solution](<../_666. Path Sum IV.md>)                                                                 | py                       | Jul 03, 2024    |
-|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Easy    |                | [solution](<../_690. Employee Importance.md>)                                                         | java                     | Jul 02, 2024    |
-|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Easy    | N150           | [solution](<../_695. Max Area of Island.md>)                                                          | c                        | Jun 24, 2024    |
-|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Easy    |                | [solution](<../_713. Subarray Product Less Than K.md>)                                                | py                       | Jul 01, 2024    |
-|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Easy    |                | [solution](<../_720. Longest Word in Dictionary.md>)                                                  | py                       | Jun 27, 2024    |
-|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Easy    |                | [solution](<../_735. Asteroid Collision.md>)                                                          | py                       | Jul 14, 2024    |
-|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Easy    | N150           | [solution](<../_739. Daily Temperatures.md>)                                                          | c, java, py              | Jun 13, 2024    |
+|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                                           | Medium  | Daily          | [solution](<../_648. Replace Words.md>)                                                               | java, py                 | Jun 07, 2024    |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                                                               | Medium  |                | [solution](<../_654. Maximum Binary Tree.md>)                                                         | py                       | Jun 12, 2024    |
+|  665 | [Non-decreasing Array](<https://leetcode.com/problems/non-decreasing-array>)                                                                                                             | Medium  |                | [solution](<../_665. Non-decreasing Array.md>)                                                        | java, py                 | Jun 14, 2024    |
+|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                                               | Medium  |                | [solution](<../_666. Path Sum IV.md>)                                                                 | py                       | Jul 03, 2024    |
+|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                                               | Medium  |                | [solution](<../_690. Employee Importance.md>)                                                         | java                     | Jul 02, 2024    |
+|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                                                 | Medium  | N150           | [solution](<../_695. Max Area of Island.md>)                                                          | c                        | Jun 24, 2024    |
+|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Medium  |                | [solution](<../_713. Subarray Product Less Than K.md>)                                                | py                       | Jul 01, 2024    |
+|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                                 | Medium  |                | [solution](<../_720. Longest Word in Dictionary.md>)                                                  | py                       | Jun 27, 2024    |
+|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                                                 | Medium  |                | [solution](<../_735. Asteroid Collision.md>)                                                          | py                       | Jul 14, 2024    |
+|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                                                                 | Medium  | N150           | [solution](<../_739. Daily Temperatures.md>)                                                          | c, java, py              | Jun 13, 2024    |
 |  744 | [Find Smallest Letter Greater Than Target](<https://leetcode.com/problems/find-smallest-letter-greater-than-target>)                                                                     | Easy    |                | [solution](<../_744. Find Smallest Letter Greater Than Target.md>)                                    | java, py                 | Jun 01, 2024    |
 |  746 | [Min Cost Climbing Stairs](<https://leetcode.com/problems/min-cost-climbing-stairs>)                                                                                                     | Easy    | N150           | [solution](<../_746. Min Cost Climbing Stairs.md>)                                                    | py                       | Jul 05, 2024    |
-|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Easy    |                | [solution](<../_758. Bold Words in String.md>)                                                        | py                       | Jun 28, 2024    |
-|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Easy    |                | [solution](<../_794. Valid Tic-Tac-Toe State.md>)                                                     | py                       | Jul 05, 2024    |
-|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Easy    |                | [solution](<../_807. Max Increase to Keep City Skyline.md>)                                           | java                     | Jun 22, 2024    |
-|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Easy    |                | [solution](<../_817. Linked List Components.md>)                                                      | java                     | Jul 04, 2024    |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Easy    | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                                                  | py                       | Jun 18, 2024    |
-|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Easy    | Daily, N150    | [solution](<../_846. Hand of Straights.md>)                                                           | py                       | Jun 06, 2024    |
-|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Easy    |                | [solution](<../_848. Shifting Letters.md>)                                                            | py                       | Jun 29, 2024    |
-|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Easy    |                | [solution](<../_849. Maximize Distance to Closest Person.md>)                                         | py                       | Jun 29, 2024    |
-|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Easy    | N150           | [solution](<../_853. Car Fleet.md>)                                                                   | py                       | Jun 14, 2024    |
-|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Easy    |                | [solution](<../_861. Score After Flipping Matrix.md>)                                                 | c, py                    | Jun 10, 2024    |
+|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                                             | Medium  |                | [solution](<../_758. Bold Words in String.md>)                                                        | py                       | Jun 28, 2024    |
+|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                                       | Medium  |                | [solution](<../_794. Valid Tic-Tac-Toe State.md>)                                                     | py                       | Jul 05, 2024    |
+|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                                   | Medium  |                | [solution](<../_807. Max Increase to Keep City Skyline.md>)                                           | java                     | Jun 22, 2024    |
+|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                                         | Medium  |                | [solution](<../_817. Linked List Components.md>)                                                      | java                     | Jul 04, 2024    |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                                 | Medium  | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                                                  | py                       | Jun 18, 2024    |
+|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                                   | Medium  | Daily, N150    | [solution](<../_846. Hand of Straights.md>)                                                           | py                       | Jun 06, 2024    |
+|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                                     | Medium  |                | [solution](<../_848. Shifting Letters.md>)                                                            | py                       | Jun 29, 2024    |
+|  849 | [Maximize Distance to Closest Person](<https://leetcode.com/problems/maximize-distance-to-closest-person>)                                                                               | Medium  |                | [solution](<../_849. Maximize Distance to Closest Person.md>)                                         | py                       | Jun 29, 2024    |
+|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                                   | Medium  | N150           | [solution](<../_853. Car Fleet.md>)                                                                   | py                       | Jun 14, 2024    |
+|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                               | Medium  |                | [solution](<../_861. Score After Flipping Matrix.md>)                                                 | c, py                    | Jun 10, 2024    |
 |  867 | [Transpose Matrix](<https://leetcode.com/problems/transpose-matrix>)                                                                                                                     | Easy    |                | [solution](<../_867. Transpose Matrix.md>)                                                            | py                       | Jun 15, 2024    |
-|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Easy    |                | [solution](<../_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py | Jul 11, 2024    |
-|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Easy    |                | [solution](<../_890. Find and Replace Pattern.md>)                                                    | py                       | Jul 03, 2024    |
-|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Easy    |                | [solution](<../_909. Snakes and Ladders.md>)                                                          | py                       | Jun 12, 2024    |
-|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Easy    |                | [solution](<../_930. Binary Subarrays With Sum.md>)                                                   | py                       | Jun 22, 2024    |
-|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Easy    | Daily          | [solution](<../_945. Minimum Increment to Make Array Unique.md>)                                      | py                       | Jun 14, 2024    |
-|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Easy    |                | [solution](<../_946. Validate Stack Sequences.md>)                                                    | c, py                    | Jun 12, 2024    |
-|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Easy    |                | [solution](<../_950. Reveal Cards In Increasing Order.md>)                                            | py                       | Jun 12, 2024    |
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Easy    | N150           | [solution](<../_973. K Closest Points to Origin.md>)                                                  | py                       | Jun 29, 2024    |
-|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Easy    | Daily          | [solution](<../_974. Subarray Sums Divisible by K.md>)                                                | java, py                 | Jun 09, 2024    |
+|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                                                 | Medium  |                | [solution](<../_877. Stone Game.md>)                                                                  | c, cpp, go, java, js, py | Jul 11, 2024    |
+|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                                     | Medium  |                | [solution](<../_890. Find and Replace Pattern.md>)                                                    | py                       | Jul 03, 2024    |
+|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                                                 | Medium  |                | [solution](<../_909. Snakes and Ladders.md>)                                                          | py                       | Jun 12, 2024    |
+|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Medium  |                | [solution](<../_930. Binary Subarrays With Sum.md>)                                                   | py                       | Jun 22, 2024    |
+|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                                         | Medium  | Daily          | [solution](<../_945. Minimum Increment to Make Array Unique.md>)                                      | py                       | Jun 14, 2024    |
+|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                                                     | Medium  |                | [solution](<../_946. Validate Stack Sequences.md>)                                                    | c, py                    | Jun 12, 2024    |
+|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Medium  |                | [solution](<../_950. Reveal Cards In Increasing Order.md>)                                            | py                       | Jun 12, 2024    |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Medium  | N150           | [solution](<../_973. K Closest Points to Origin.md>)                                                  | py                       | Jun 29, 2024    |
+|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                                             | Medium  | Daily          | [solution](<../_974. Subarray Sums Divisible by K.md>)                                                | java, py                 | Jun 09, 2024    |
 |  977 | [Squares of a Sorted Array](<https://leetcode.com/problems/squares-of-a-sorted-array>)                                                                                                   | Easy    |                | [solution](<../_977. Squares of a Sorted Array.md>)                                                   | py                       | Jun 21, 2024    |
-|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Easy    | N150           | [solution](<../_994. Rotting Oranges.md>)                                                             | py                       | Jun 15, 2024    |
+|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                                       | Medium  | N150           | [solution](<../_994. Rotting Oranges.md>)                                                             | py                       | Jun 15, 2024    |
 |  995 | [Minimum Number of K Consecutive Bit Flips](<https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips>)                                                                   | Hard    | Daily          | [solution](<../_995. Minimum Number of K Consecutive Bit Flips.md>)                                   | c, py                    | Jun 24, 2024    |
 | 1002 | [Find Common Characters](<https://leetcode.com/problems/find-common-characters>)                                                                                                         | Easy    | Daily          | [solution](<../_1002. Find Common Characters.md>)                                                     | py                       | Jun 08, 2024    |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Easy    |                | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java             | Jun 27, 2024    |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)                                             | Medium  |                | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)                       | c, cpp, java             | Jun 27, 2024    |
 | 1018 | [Binary Prefix Divisible By 5](<https://leetcode.com/problems/binary-prefix-divisible-by-5>)                                                                                             | Easy    |                | [solution](<../_1018. Binary Prefix Divisible By 5.md>)                                               | py                       | Jul 04, 2024    |
-| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Easy    |                | [solution](<../_1019. Next Greater Node In Linked List.md>)                                           | py                       | Jun 22, 2024    |
-| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Easy    |                | [solution](<../_1020. Number of Enclaves.md>)                                                         | py                       | Jun 26, 2024    |
+| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                                     | Medium  |                | [solution](<../_1019. Next Greater Node In Linked List.md>)                                           | py                       | Jun 22, 2024    |
+| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                                                 | Medium  |                | [solution](<../_1020. Number of Enclaves.md>)                                                         | py                       | Jun 26, 2024    |
 | 1030 | [Matrix Cells in Distance Order](<https://leetcode.com/problems/matrix-cells-in-distance-order>)                                                                                         | Easy    |                | [solution](<../_1030. Matrix Cells in Distance Order.md>)                                             | py                       | Jun 04, 2024    |
 | 1046 | [Last Stone Weight](<https://leetcode.com/problems/last-stone-weight>)                                                                                                                   | Easy    | N150           | [solution](<../_1046. Last Stone Weight.md>)                                                          | py                       | Jun 04, 2024    |
 | 1051 | [Height Checker](<https://leetcode.com/problems/height-checker>)                                                                                                                         | Easy    | Daily          | [solution](<../_1051. Height Checker.md>)                                                             | c, py                    | Jun 10, 2024    |
-| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Easy    | Daily          | [solution](<../_1052. Grumpy Bookstore Owner.md>)                                                     | py                       | Jun 24, 2024    |
-| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Easy    | Weekly Premium | [solution](<../_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                       | Jul 04, 2024    |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Easy    | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                                             | py                       | Jul 17, 2024    |
+| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Medium  | Daily          | [solution](<../_1052. Grumpy Bookstore Owner.md>)                                                     | py                       | Jun 24, 2024    |
+| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                                     | Medium  | Weekly Premium | [solution](<../_1101. The Earliest Moment When Everyone Become Friends.md>)                           | py                       | Jul 04, 2024    |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                                         | Medium  | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                                             | py                       | Jul 17, 2024    |
 | 1122 | [Relative Sort Array](<https://leetcode.com/problems/relative-sort-array>)                                                                                                               | Easy    | Daily          | [solution](<../_1122. Relative Sort Array.md>)                                                        | java, py                 | Jun 11, 2024    |
 | 1184 | [Distance Between Bus Stops](<https://leetcode.com/problems/distance-between-bus-stops>)                                                                                                 | Easy    |                | [solution](<../_1184. Distance Between Bus Stops.md>)                                                 | py                       | May 31, 2024    |
-| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Easy    |                | [solution](<../_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                       | May 31, 2024    |
-| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Easy    |                | [solution](<../_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                       | Jun 28, 2024    |
-| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Easy    |                | [solution](<../_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                       | Jun 29, 2024    |
-| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Easy    | Daily          | [solution](<../_1248. Count Number of Nice Subarrays.md>)                                             | py                       | Jun 22, 2024    |
+| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                                                 | Medium  |                | [solution](<../_1218. Longest Arithmetic Subsequence of Given Difference.md>)                         | py                       | May 31, 2024    |
+| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                                         | Medium  |                | [solution](<../_1233. Remove Sub-Folders from the Filesystem.md>)                                     | py                       | Jun 28, 2024    |
+| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)                         | Medium  |                | [solution](<../_1239. Maximum Length of a Concatenated String with Unique Characters.md>)             | py                       | Jun 29, 2024    |
+| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Medium  | Daily          | [solution](<../_1248. Count Number of Nice Subarrays.md>)                                             | py                       | Jun 22, 2024    |
 | 1252 | [Cells with Odd Values in a Matrix](<https://leetcode.com/problems/cells-with-odd-values-in-a-matrix>)                                                                                   | Easy    |                | [solution](<../_1252. Cells with Odd Values in a Matrix.md>)                                          | c                        | Jun 04, 2024    |
-| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Easy    |                | [solution](<../_1254. Number of Closed Islands.md>)                                                   | py                       | Jun 26, 2024    |
+| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                                                     | Medium  |                | [solution](<../_1254. Number of Closed Islands.md>)                                                   | py                       | Jun 26, 2024    |
 | 1255 | [Maximum Score Words Formed by Letters](<https://leetcode.com/problems/maximum-score-words-formed-by-letters>)                                                                           | Hard    |                | [solution](<../_1255. Maximum Score Words Formed by Letters.md>)                                      | py                       | Jun 15, 2024    |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Easy    |                | [solution](<../_1268. Search Suggestions System.md>)                                                  | py                       | Jun 29, 2024    |
-| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Easy    |                | [solution](<../_1282. Group the People Given the Group Size They Belong To.md>)                       | py                       | Jun 28, 2024    |
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Medium  |                | [solution](<../_1268. Search Suggestions System.md>)                                                  | py                       | Jun 29, 2024    |
+| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                                             | Medium  |                | [solution](<../_1282. Group the People Given the Group Size They Belong To.md>)                       | py                       | Jun 28, 2024    |
 | 1284 | [Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](<https://leetcode.com/problems/minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix>)                       | Hard    |                | [solution](<../_1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix.md>)            | py                       | Jun 09, 2024    |
 | 1351 | [Count Negative Numbers in a Sorted Matrix](<https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix>)                                                                   | Easy    |                | [solution](<../_1351. Count Negative Numbers in a Sorted Matrix.md>)                                  | java, py                 | Jun 01, 2024    |
 | 1380 | [Lucky Numbers in a Matrix](<https://leetcode.com/problems/lucky-numbers-in-a-matrix>)                                                                                                   | Easy    | Daily          | [solution](<../_1380. Lucky Numbers in a Matrix.md>)                                                  | js, py                   | Jul 19, 2024    |
-| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Easy    |                | [solution](<../_1381. Design a Stack With Increment Operation.md>)                                    | py                       | Jul 06, 2024    |
+| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                                                       | Medium  |                | [solution](<../_1381. Design a Stack With Increment Operation.md>)                                    | py                       | Jul 06, 2024    |
 | 1426 | [Counting Elements](<https://leetcode.com/problems/counting-elements>)                                                                                                                   | Easy    |                | [solution](<../_1426. Counting Elements.md>)                                                          | c                        | Jun 04, 2024    |
 | 1436 | [Destination City](<https://leetcode.com/problems/destination-city>)                                                                                                                     | Easy    |                | [solution](<../_1436. Destination City.md>)                                                           | java                     | Jun 01, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily          | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                     | Jun 24, 2024    |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Easy    | Daily          | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                       | Jun 08, 2024    |
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily          | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                     | Jun 24, 2024    |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                                             | Medium  | Daily          | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)                       | py                       | Jun 08, 2024    |
 | 1460 | [Make Two Arrays Equal by Reversing Subarrays](<https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays>)                                                             | Easy    |                | [solution](<../_1460. Make Two Arrays Equal by Reversing Subarrays.md>)                               | c                        | Jun 04, 2024    |
 | 1470 | [Shuffle the Array](<https://leetcode.com/problems/shuffle-the-array>)                                                                                                                   | Easy    |                | [solution](<../_1470. Shuffle the Array.md>)                                                          | c                        | Jun 03, 2024    |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Easy    |                | [solution](<../_1472. Design Browser History.md>)                                                     | py                       | Jul 06, 2024    |
-| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Easy    |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)                           | py                       | Jun 15, 2024    |
-| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Easy    |                | [solution](<../_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                       | Jun 19, 2024    |
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                                         | Medium  |                | [solution](<../_1472. Design Browser History.md>)                                                     | py                       | Jul 06, 2024    |
+| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                                     | Medium  |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)                           | py                       | Jun 15, 2024    |
+| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                                                                   | Medium  |                | [solution](<../_1482. Minimum Number of Days to Make m Bouquets.md>)                                  | py                       | Jun 19, 2024    |
 | 1502 | [Can Make Arithmetic Progression From Sequence](<https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence>)                                                           | Easy    |                | [solution](<../_1502. Can Make Arithmetic Progression From Sequence.md>)                              | c, py                    | Jun 04, 2024    |
-| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Easy    | Daily          | [solution](<../_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py         | Jul 03, 2024    |
-| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Easy    |                | [solution](<../_1535. Find the Winner of an Array Game.md>)                                           | py                       | Jun 08, 2024    |
+| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>)             | Medium  | Daily          | [solution](<../_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>)       | c, cpp, java, py         | Jul 03, 2024    |
+| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                                                     | Medium  |                | [solution](<../_1535. Find the Winner of an Array Game.md>)                                           | py                       | Jun 08, 2024    |
 | 1550 | [Three Consecutive Odds](<https://leetcode.com/problems/three-consecutive-odds>)                                                                                                         | Easy    | Daily          | [solution](<../_1550. Three Consecutive Odds.md>)                                                     | c, py                    | Jul 01, 2024    |
-| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Easy    | Daily          | [solution](<../_1552. Magnetic Force Between Two Balls.md>)                                           | py                       | Jun 20, 2024    |
-| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Easy    |                | [solution](<../_1561. Maximum Number of Coins You Can Get.md>)                                        | py                       | Jun 23, 2024    |
-| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Easy    |                | [solution](<../_1564. Put Boxes Into the Warehouse I.md>)                                             | py                       | Jun 15, 2024    |
-| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Easy    |                | [solution](<../_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py              | Jun 06, 2024    |
-| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Easy    | Weekly Premium | [solution](<../_1580. Put Boxes Into the Warehouse II.md>)                                            | py                       | Jun 15, 2024    |
+| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                                     | Medium  | Daily          | [solution](<../_1552. Magnetic Force Between Two Balls.md>)                                           | py                       | Jun 20, 2024    |
+| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                               | Medium  |                | [solution](<../_1561. Maximum Number of Coins You Can Get.md>)                                        | py                       | Jun 23, 2024    |
+| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                                         | Medium  |                | [solution](<../_1564. Put Boxes Into the Warehouse I.md>)                                             | py                       | Jun 15, 2024    |
+| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                                                   | Medium  |                | [solution](<../_1570. Dot Product of Two Sparse Vectors.md>)                                          | c, java, py              | Jun 06, 2024    |
+| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                                       | Medium  | Weekly Premium | [solution](<../_1580. Put Boxes Into the Warehouse II.md>)                                            | py                       | Jun 15, 2024    |
 | 1598 | [Crawler Log Folder](<https://leetcode.com/problems/crawler-log-folder>)                                                                                                                 | Easy    | Daily          | [solution](<../_1598. Crawler Log Folder.md>)                                                         | c, js                    | Jul 10, 2024    |
-| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Easy    | Daily          | [solution](<../_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                       | Jul 20, 2024    |
+| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                               | Medium  | Daily          | [solution](<../_1605. Find Valid Matrix Given Row and Column Sums.md>)                                | py                       | Jul 20, 2024    |
 | 1684 | [Count the Number of Consistent Strings](<https://leetcode.com/problems/count-the-number-of-consistent-strings>)                                                                         | Easy    |                | [solution](<../_1684. Count the Number of Consistent Strings.md>)                                     | c, py                    | Jun 06, 2024    |
-| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Easy    |                | [solution](<../_1696. Jump Game VI.md>)                                                               | java, py                 | Jul 03, 2024    |
+| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Medium  |                | [solution](<../_1696. Jump Game VI.md>)                                                               | java, py                 | Jul 03, 2024    |
 | 1700 | [Number of Students Unable to Eat Lunch](<https://leetcode.com/problems/number-of-students-unable-to-eat-lunch>)                                                                         | Easy    |                | [solution](<../_1700. Number of Students Unable to Eat Lunch.md>)                                     | py                       | Jun 02, 2024    |
-| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Easy    | Daily          | [solution](<../_1701. Average Waiting Time.md>)                                                       | js, py                   | Jul 09, 2024    |
-| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Easy    |                | [solution](<../_1730. Shortest Path to Get Food.md>)                                                  | py                       | Jun 26, 2024    |
-| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Easy    |                | [solution](<../_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                       | Jun 27, 2024    |
+| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                                             | Medium  | Daily          | [solution](<../_1701. Average Waiting Time.md>)                                                       | js, py                   | Jul 09, 2024    |
+| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                                                   | Medium  |                | [solution](<../_1730. Shortest Path to Get Food.md>)                                                  | py                       | Jun 26, 2024    |
+| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                                           | Medium  |                | [solution](<../_1743. Restore the Array From Adjacent Pairs.md>)                                      | py                       | Jun 27, 2024    |
 | 1748 | [Sum of Unique Elements](<https://leetcode.com/problems/sum-of-unique-elements>)                                                                                                         | Easy    |                | [solution](<../_1748. Sum of Unique Elements.md>)                                                     | c                        | Jun 06, 2024    |
-| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Easy    |                | [solution](<../_1762. Buildings With an Ocean View.md>)                                               | py                       | Jun 10, 2024    |
+| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                                                             | Medium  |                | [solution](<../_1762. Buildings With an Ocean View.md>)                                               | py                       | Jun 10, 2024    |
 | 1822 | [Sign of the Product of an Array](<https://leetcode.com/problems/sign-of-the-product-of-an-array>)                                                                                       | Easy    |                | [solution](<../_1822. Sign of the Product of an Array.md>)                                            | c                        | Jun 06, 2024    |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Easy    | Daily          | [solution](<../_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py     | Jul 08, 2024    |
-| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Easy    |                | [solution](<../_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py              | Jun 23, 2024    |
-| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Easy    |                | [solution](<../_1852. Distinct Numbers in Each Subarray.md>)                                          | java                     | Jun 27, 2024    |
-| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Easy    |                | [solution](<../_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                  | Jun 22, 2024    |
-| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Easy    |                | [solution](<../_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                       | Jun 23, 2024    |
-| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Easy    | Weekly Premium | [solution](<../_1885. Count Pairs in Two Arrays.md>)                                                  | py                       | Jun 08, 2024    |
-| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Easy    |                | [solution](<../_1905. Count Sub Islands.md>)                                                          | py                       | Jun 24, 2024    |
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Medium  | Daily          | [solution](<../_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py     | Jul 08, 2024    |
+| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                                         | Medium  |                | [solution](<../_1833. Maximum Ice Cream Bars.md>)                                                     | c, java, py              | Jun 23, 2024    |
+| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Medium  |                | [solution](<../_1852. Distinct Numbers in Each Subarray.md>)                                          | java                     | Jun 27, 2024    |
+| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                                 | Medium  |                | [solution](<../_1874. Minimize Product Sum of Two Arrays.md>)                                         | c, java                  | Jun 22, 2024    |
+| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                                 | Medium  |                | [solution](<../_1877. Minimize Maximum Pair Sum in Array.md>)                                         | py                       | Jun 23, 2024    |
+| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                                   | Medium  | Weekly Premium | [solution](<../_1885. Count Pairs in Two Arrays.md>)                                                  | py                       | Jun 08, 2024    |
+| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                                                   | Medium  |                | [solution](<../_1905. Count Sub Islands.md>)                                                          | py                       | Jun 24, 2024    |
 | 1909 | [Remove One Element to Make the Array Strictly Increasing](<https://leetcode.com/problems/remove-one-element-to-make-the-array-strictly-increasing>)                                     | Easy    |                | [solution](<../_1909. Remove One Element to Make the Array Strictly Increasing.md>)                   | c                        | Jun 17, 2024    |
 | 1929 | [Concatenation of Array](<https://leetcode.com/problems/concatenation-of-array>)                                                                                                         | Easy    |                | [solution](<../_1929. Concatenation of Array.md>)                                                     | c, java, py              | Jun 03, 2024    |
-| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Easy    | Weekly Premium | [solution](<../_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                 | Jun 01, 2024    |
-| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Easy    |                | [solution](<../_1980. Find Unique Binary String.md>)                                                  | c, py                    | Jun 27, 2024    |
-| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Easy    |                | [solution](<../_1992. Find All Groups of Farmland.md>)                                                | java, py                 | Jun 24, 2024    |
+| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                                                     | Medium  | Weekly Premium | [solution](<../_1940. Longest Common Subsequence Between Sorted Arrays.md>)                           | java, py                 | Jun 01, 2024    |
+| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                                   | Medium  |                | [solution](<../_1980. Find Unique Binary String.md>)                                                  | c, py                    | Jun 27, 2024    |
+| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                                               | Medium  |                | [solution](<../_1992. Find All Groups of Farmland.md>)                                                | java, py                 | Jun 24, 2024    |
 | 2011 | [Final Value of Variable After Performing Operations](<https://leetcode.com/problems/final-value-of-variable-after-performing-operations>)                                               | Easy    |                | [solution](<../_2011. Final Value of Variable After Performing Operations.md>)                        | c                        | Jun 03, 2024    |
-| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Easy    | N150           | [solution](<../_2013. Detect Squares.md>)                                                             | py                       | Jun 28, 2024    |
+| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                                         | Medium  | N150           | [solution](<../_2013. Detect Squares.md>)                                                             | py                       | Jun 28, 2024    |
 | 2037 | [Minimum Number of Moves to Seat Everyone](<https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone>)                                                                     | Easy    | Daily          | [solution](<../_2037. Minimum Number of Moves to Seat Everyone.md>)                                   | c, py                    | Jun 03, 2024    |
-| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Easy    |                | [solution](<../_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                    | Jun 10, 2024    |
-| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Easy    | Daily          | [solution](<../_2196. Create Binary Tree From Descriptions.md>)                                       | py                       | Jul 15, 2024    |
+| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                                                     | Medium  |                | [solution](<../_2149. Rearrange Array Elements by Sign.md>)                                           | c, py                    | Jun 10, 2024    |
+| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                                             | Medium  | Daily          | [solution](<../_2196. Create Binary Tree From Descriptions.md>)                                       | py                       | Jul 15, 2024    |
 | 2206 | [Divide Array Into Equal Pairs](<https://leetcode.com/problems/divide-array-into-equal-pairs>)                                                                                           | Easy    |                | [solution](<../_2206. Divide Array Into Equal Pairs.md>)                                              | c, py                    | Jun 08, 2024    |
-| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Easy    |                | [solution](<../_2221. Find Triangular Sum of an Array.md>)                                            | c, java                  | Jun 27, 2024    |
-| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Easy    |                | [solution](<../_2225. Find Players With Zero or One Losses.md>)                                       | java                     | Jun 24, 2024    |
+| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                                       | Medium  |                | [solution](<../_2221. Find Triangular Sum of an Array.md>)                                            | c, java                  | Jun 27, 2024    |
+| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                             | Medium  |                | [solution](<../_2225. Find Players With Zero or One Losses.md>)                                       | java                     | Jun 24, 2024    |
 | 2248 | [Intersection of Multiple Arrays](<https://leetcode.com/problems/intersection-of-multiple-arrays>)                                                                                       | Easy    |                | [solution](<../_2248. Intersection of Multiple Arrays.md>)                                            | py                       | May 31, 2024    |
 | 2258 | [Escape the Spreading Fire](<https://leetcode.com/problems/escape-the-spreading-fire>)                                                                                                   | Hard    |                | [solution](<../_2258. Escape the Spreading Fire.md>)                                                  | py                       | Jun 15, 2024    |
-| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Easy    |                | [solution](<../_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py         | Jun 24, 2024    |
-| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Easy    |                | [solution](<../_2352. Equal Row and Column Pairs.md>)                                                 | py                       | Jun 27, 2024    |
-| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Easy    |                | [solution](<../_2365. Task Scheduler II.md>)                                                          | py                       | Jun 29, 2024    |
+| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                                            | Medium  |                | [solution](<../_2317. Maximum XOR After Operations .md>)                                              | c, cpp, java, py         | Jun 24, 2024    |
+| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                                                 | Medium  |                | [solution](<../_2352. Equal Row and Column Pairs.md>)                                                 | py                       | Jun 27, 2024    |
+| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                                                   | Medium  |                | [solution](<../_2365. Task Scheduler II.md>)                                                          | py                       | Jun 29, 2024    |
 | 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                                                             | Easy    |                | [solution](<../_2389. Longest Subsequence With Limited Sum.md>)                                       | py                       | Jun 01, 2024    |
 | 2395 | [Find Subarrays With Equal Sum](<https://leetcode.com/problems/find-subarrays-with-equal-sum>)                                                                                           | Easy    |                | [solution](<../_2395. Find Subarrays With Equal Sum.md>)                                              | py                       | May 31, 2024    |
-| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Easy    |                | [solution](<../_2433. Find The Original Array of Prefix Xor.md>)                                      | py                       | May 31, 2024    |
+| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                                           | Medium  |                | [solution](<../_2433. Find The Original Array of Prefix Xor.md>)                                      | py                       | May 31, 2024    |
 | 2455 | [Average Value of Even Numbers That Are Divisible by Three](<https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three>)                                   | Easy    |                | [solution](<../_2455. Average Value of Even Numbers That Are Divisible by Three.md>)                  | java                     | Jul 04, 2024    |
-| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Easy    |                | [solution](<../_2473. Minimum Cost to Buy Apples.md>)                                                 | py                       | Jun 29, 2024    |
-| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Easy    |                | [solution](<../_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                       | Jun 07, 2024    |
-| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Easy    |                | [solution](<../_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                 | Jun 24, 2024    |
+| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Medium  |                | [solution](<../_2473. Minimum Cost to Buy Apples.md>)                                                 | py                       | Jun 29, 2024    |
+| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                                               | Medium  |                | [solution](<../_2482. Difference Between Ones and Zeros in Row and Column.md>)                        | py                       | Jun 07, 2024    |
+| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                             | Medium  |                | [solution](<../_2545. Sort the Students by Their Kth Score.md>)                                       | java, py                 | Jun 24, 2024    |
 | 2570 | [Merge Two 2D Arrays by Summing Values](<https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values>)                                                                           | Easy    |                | [solution](<../_2570. Merge Two 2D Arrays by Summing Values.md>)                                      | c                        | Jun 10, 2024    |
-| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Easy    |                | [solution](<../_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                       | Jun 07, 2024    |
+| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                                                     | Medium  |                | [solution](<../_2610. Convert an Array Into a 2D Array With Conditions.md>)                           | py                       | Jun 07, 2024    |
 | 2678 | [Number of Senior Citizens](<https://leetcode.com/problems/number-of-senior-citizens>)                                                                                                   | Easy    |                | [solution](<../_2678. Number of Senior Citizens.md>)                                                  | java                     | May 22, 2024    |
-| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Easy    |                | [solution](<../_2679. Sum in a Matrix.md>)                                                            | java                     | May 22, 2024    |
+| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Medium  |                | [solution](<../_2679. Sum in a Matrix.md>)                                                            | java                     | May 22, 2024    |
 | 2751 | [Robot Collisions](<https://leetcode.com/problems/robot-collisions>)                                                                                                                     | Hard    | Daily          | [solution](<../_2751. Robot Collisions.md>)                                                           | py                       | Jul 13, 2024    |
 | 2942 | [Find Words Containing Character](<https://leetcode.com/problems/find-words-containing-character>)                                                                                       | Easy    |                | [solution](<../_2942. Find Words Containing Character.md>)                                            | c                        | Jun 06, 2024    |
 | 2954 | [Count the Number of Infection Sequences](<https://leetcode.com/problems/count-the-number-of-infection-sequences>)                                                                       | Hard    |                | [solution](<../_2954. Count the Number of Infection Sequences.md>)                                    | py                       | Jun 26, 2024    |
-| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Easy    |                | [solution](<../_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                 | Jun 12, 2024    |
-| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Easy    |                | [solution](<../_3043. Find the Length of the Longest Common Prefix.md>)                               | py                       | Jun 28, 2024    |
+| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                                   | Medium  |                | [solution](<../_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)                  | java, py                 | Jun 12, 2024    |
+| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                                             | Medium  |                | [solution](<../_3043. Find the Length of the Longest Common Prefix.md>)                               | py                       | Jun 28, 2024    |
 | 3045 | [Count Prefix and Suffix Pairs II](<https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii>)                                                                                     | Hard    |                | [solution](<../_3045. Count Prefix and Suffix Pairs II.md>)                                           | py                       | Jun 29, 2024    |
 | 3074 | [Apple Redistribution into Boxes](<https://leetcode.com/problems/apple-redistribution-into-boxes>)                                                                                       | Easy    |                | [solution](<../_3074. Apple Redistribution into Boxes.md>)                                            | py                       | May 23, 2024    |
-| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Easy    | Contest        | [solution](<../_3169. Count Days Without Meetings.md>)                                                | py                       | Jul 07, 2024    |
-| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Easy    | Contest        | [solution](<../_3175. Find The First Player to win K Games in a Row.md>)                              | py                       | Jul 07, 2024    |
-| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Easy    | Contest        | [solution](<../_3179. Find the N-th Value After K Seconds.md>)                                        | py                       | Jul 07, 2024    |
-| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Easy    | Contest        | [solution](<../_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                    | Jul 07, 2024    |
+| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                                     | Medium  | Contest        | [solution](<../_3169. Count Days Without Meetings.md>)                                                | py                       | Jul 07, 2024    |
+| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)                               | Medium  | Contest        | [solution](<../_3175. Find The First Player to win K Games in a Row.md>)                              | py                       | Jul 07, 2024    |
+| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                                                     | Medium  | Contest        | [solution](<../_3179. Find the N-th Value After K Seconds.md>)                                        | py                       | Jul 07, 2024    |
+| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                                             | Medium  | Contest        | [solution](<../_3180. Maximum Total Reward Using Operations I.md>)                                    | c, py                    | Jul 07, 2024    |
 | 3184 | Weekly Contest 402 - q1 - [Count Pairs That Form a Complete Day I](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-i>)                                               | Easy    | Contest        | [solution](<../_3184. Count Pairs That Form a Complete Day I.md>)                                     | py                       | Jul 07, 2024    |
-| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Easy    | Contest        | [solution](<../_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                       | Jul 07, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Easy    | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                       | Jul 07, 2024    |
+| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                                             | Medium  | Contest        | [solution](<../_3185. Count Pairs That Form a Complete Day II.md>)                                    | py                       | Jul 07, 2024    |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                             | Medium  | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                                    | py                       | Jul 07, 2024    |
 | 3190 | [Find Minimum Operations to Make All Elements Divisible by Three](<https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three>)                       | Easy    |                | [solution](<../_3190. Find Minimum Operations to Make All Elements Divisible by Three.md>)            | java                     | Jun 22, 2024    |
-| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Easy    |                | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                     | Jun 22, 2024    |
-| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Easy    |                | [solution](<../_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                     | Jun 22, 2024    |
+| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Medium  |                | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                     | Jun 22, 2024    |
+| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)                     | Medium  |                | [solution](<../_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)           | java                     | Jun 22, 2024    |
 | 3194 | Weekly Contest 403 - q1 - [Minimum Average of Smallest and Largest Elements](<https://leetcode.com/problems/minimum-average-of-smallest-and-largest-elements>)                           | Easy    | Contest        | [solution](<../_3194. Minimum Average of Smallest and Largest Elements.md>)                           | py                       | Jul 07, 2024    |
-| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Easy    | Contest        | [solution](<../_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                       | Jul 07, 2024    |
-| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Easy    | Contest        | [solution](<../_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                       | Jul 07, 2024    |
-| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Easy    | Contest        | [solution](<../_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                       | Jul 07, 2024    |
+| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                                         | Medium  | Contest        | [solution](<../_3195. Find the Minimum Area to Cover All Ones I.md>)                                  | py                       | Jul 07, 2024    |
+| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)                                   | Medium  | Contest        | [solution](<../_3196. Maximize Total Cost of Alternating Subarrays.md>)                               | py                       | Jul 07, 2024    |
+| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)                         | Medium  | Contest        | [solution](<../_3212. Count Submatrices With Equal Frequency of X and Y.md>)                          | py                       | Jul 07, 2024    |
 | 3213 | Weekly Contest 405 - q4 - [Construct String with Minimum Cost](<https://leetcode.com/problems/construct-string-with-minimum-cost>)                                                       | Hard    | Contest        | [solution](<../_3213. Construct String with Minimum Cost.md>)                                         | py                       | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Backtracking.md b/markdowns/by_topic/Backtracking.md
index ade717a8..8bbf8b3b 100644
--- a/markdowns/by_topic/Backtracking.md
+++ b/markdowns/by_topic/Backtracking.md
@@ -6,18 +6,18 @@
 
 |    # | Title                                                                                                                                                            | Level   | Cats      | Solution                                                                                  | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:------------------------------------------------------------------------------------------|:------------|:----------------|
-|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                   | Easy    | N150      | [solution](<../_17. Letter Combinations of a Phone Number.md>)                            | java        | Jul 14, 2024    |
-|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                     | Easy    | N150      | [solution](<../_22. Generate Parentheses.md>)                                             | py          | Jun 13, 2024    |
-|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                               | Easy    | B75, N150 | [solution](<../_39. Combination Sum.md>)                                                  | py          | Jul 16, 2024    |
-|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                     | Easy    | N150      | [solution](<../_46. Permutations.md>)                                                     | py          | Jun 07, 2024    |
-|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                     | Easy    |           | [solution](<../_77. Combinations.md>)                                                     | py          | Jun 07, 2024    |
-|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                               | Easy    | N150      | [solution](<../_78. Subsets.md>)                                                          | py          | Jun 02, 2024    |
-|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                       | Easy    | B75, N150 | [solution](<../_79. Word Search.md>)                                                      | py          | Jun 27, 2024    |
-|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                         | Easy    | N150      | [solution](<../_90. Subsets II.md>)                                                       | py          | Jul 03, 2024    |
-|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                       | Easy    |           | [solution](<../_113. Path Sum II.md>)                                                     | py          | Jul 03, 2024    |
+|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                   | Medium  | N150      | [solution](<../_17. Letter Combinations of a Phone Number.md>)                            | java        | Jul 14, 2024    |
+|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                     | Medium  | N150      | [solution](<../_22. Generate Parentheses.md>)                                             | py          | Jun 13, 2024    |
+|   39 | [Combination Sum](<https://leetcode.com/problems/combination-sum>)                                                                                               | Medium  | B75, N150 | [solution](<../_39. Combination Sum.md>)                                                  | py          | Jul 16, 2024    |
+|   46 | [Permutations](<https://leetcode.com/problems/permutations>)                                                                                                     | Medium  | N150      | [solution](<../_46. Permutations.md>)                                                     | py          | Jun 07, 2024    |
+|   77 | [Combinations](<https://leetcode.com/problems/combinations>)                                                                                                     | Medium  |           | [solution](<../_77. Combinations.md>)                                                     | py          | Jun 07, 2024    |
+|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                               | Medium  | N150      | [solution](<../_78. Subsets.md>)                                                          | py          | Jun 02, 2024    |
+|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                       | Medium  | B75, N150 | [solution](<../_79. Word Search.md>)                                                      | py          | Jun 27, 2024    |
+|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                         | Medium  | N150      | [solution](<../_90. Subsets II.md>)                                                       | py          | Jul 03, 2024    |
+|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                                       | Medium  |           | [solution](<../_113. Path Sum II.md>)                                                     | py          | Jul 03, 2024    |
 |  212 | [Word Search II](<https://leetcode.com/problems/word-search-ii>)                                                                                                 | Hard    | B75, N150 | [solution](<../_212. Word Search II.md>)                                                  | py          | Jun 27, 2024    |
-|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                               | Easy    |           | [solution](<../_784. Letter Case Permutation.md>)                                         | py          | Jun 15, 2024    |
-| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                               | Easy    |           | [solution](<../_1087. Brace Expansion.md>)                                                | py          | Jun 15, 2024    |
-| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>) | Easy    |           | [solution](<../_1239. Maximum Length of a Concatenated String with Unique Characters.md>) | py          | Jun 29, 2024    |
+|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                               | Medium  |           | [solution](<../_784. Letter Case Permutation.md>)                                         | py          | Jun 15, 2024    |
+| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                               | Medium  |           | [solution](<../_1087. Brace Expansion.md>)                                                | py          | Jun 15, 2024    |
+| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>) | Medium  |           | [solution](<../_1239. Maximum Length of a Concatenated String with Unique Characters.md>) | py          | Jun 29, 2024    |
 | 1255 | [Maximum Score Words Formed by Letters](<https://leetcode.com/problems/maximum-score-words-formed-by-letters>)                                                   | Hard    |           | [solution](<../_1255. Maximum Score Words Formed by Letters.md>)                          | py          | Jun 15, 2024    |
-| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                           | Easy    |           | [solution](<../_1980. Find Unique Binary String.md>)                                      | c, py       | Jun 27, 2024    |
\ No newline at end of file
+| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                           | Medium  |           | [solution](<../_1980. Find Unique Binary String.md>)                                      | c, py       | Jun 27, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Binary Search Tree.md b/markdowns/by_topic/Binary Search Tree.md
index 96996e7b..2d4f3cf3 100644
--- a/markdowns/by_topic/Binary Search Tree.md	
+++ b/markdowns/by_topic/Binary Search Tree.md	
@@ -6,17 +6,17 @@
 
 |    # | Title                                                                                                                                              | Level   | Cats           | Solution                                                                          | Languages    | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:----------------------------------------------------------------------------------|:-------------|:----------------|
-|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                         | Easy    | B75, N150      | [solution](<../_98. Validate Binary Search Tree.md>)                              | c            | Jun 23, 2024    |
-|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                         | Easy    |                | [solution](<../_173. Binary Search Tree Iterator.md>)                             | py           | Jun 26, 2024    |
-|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                     | Easy    | B75, N150      | [solution](<../_230. Kth Smallest Element in a BST.md>)                           | py           | Jun 29, 2024    |
-|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                   | Easy    | B75, N150      | [solution](<../_235. Lowest Common Ancestor of a Binary Search Tree.md>)          | py           | Jul 04, 2024    |
+|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                         | Medium  | B75, N150      | [solution](<../_98. Validate Binary Search Tree.md>)                              | c            | Jun 23, 2024    |
+|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                         | Medium  |                | [solution](<../_173. Binary Search Tree Iterator.md>)                             | py           | Jun 26, 2024    |
+|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                     | Medium  | B75, N150      | [solution](<../_230. Kth Smallest Element in a BST.md>)                           | py           | Jun 29, 2024    |
+|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                   | Medium  | B75, N150      | [solution](<../_235. Lowest Common Ancestor of a Binary Search Tree.md>)          | py           | Jul 04, 2024    |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                         | Hard    |                | [solution](<../_272. Closest Binary Search Tree Value II.md>)                     | py           | Jul 01, 2024    |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>) | Easy    |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>) | py           | Jun 12, 2024    |
-|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                       | Easy    |                | [solution](<../_450. Delete Node in a BST.md>)                                    | py           | Jun 29, 2024    |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>) | Medium  |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>) | py           | Jun 12, 2024    |
+|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                       | Medium  |                | [solution](<../_450. Delete Node in a BST.md>)                                    | py           | Jun 29, 2024    |
 |  700 | [Search in a Binary Search Tree](<https://leetcode.com/problems/search-in-a-binary-search-tree>)                                                   | Easy    |                | [solution](<../_700. Search in a Binary Search Tree.md>)                          | c, java, py  | Jul 17, 2024    |
 |  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                                 | Easy    | N150           | [solution](<../_703. Kth Largest Element in a Stream.md>)                         | py           | Jul 05, 2024    |
-|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                             | Easy    | Weekly Premium | [solution](<../_776. Split BST.md>)                                               | py           | Jun 29, 2024    |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)       | Easy    |                | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)   | c, cpp, java | Jun 27, 2024    |
-| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                   | Easy    | Daily          | [solution](<../_1038. Binary Search Tree to Greater Sum Tree.md>)                 | c            | Jun 26, 2024    |
-| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                 | Easy    |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                | java         | Jun 24, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                       | Easy    | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                           | py           | Jun 29, 2024    |
\ No newline at end of file
+|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                             | Medium  | Weekly Premium | [solution](<../_776. Split BST.md>)                                               | py           | Jun 29, 2024    |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)       | Medium  |                | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)   | c, cpp, java | Jun 27, 2024    |
+| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                   | Medium  | Daily          | [solution](<../_1038. Binary Search Tree to Greater Sum Tree.md>)                 | c            | Jun 26, 2024    |
+| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                 | Medium  |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                | java         | Jun 24, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                       | Medium  | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                           | py           | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Binary Search.md b/markdowns/by_topic/Binary Search.md
index 72563dc5..5e6ad533 100644
--- a/markdowns/by_topic/Binary Search.md	
+++ b/markdowns/by_topic/Binary Search.md	
@@ -7,21 +7,21 @@
 |    # | Title                                                                                                                                        | Level   | Cats           | Solution                                                             | Languages   | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:---------------------------------------------------------------------|:------------|:----------------|
 |   69 | [Sqrt(x)](<https://leetcode.com/problems/sqrtx>)                                                                                             | Easy    |                | [solution](<../_69. Sqrt(x).md>)                                     | py          | Jun 07, 2024    |
-|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                     | Easy    | N150           | [solution](<../_74. Search a 2D Matrix.md>)                          | py          | Jun 15, 2024    |
-|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                       | Easy    | N150           | [solution](<../_167. Two Sum II - Input Array Is Sorted.md>)         | py          | Jun 14, 2024    |
-|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                       | Easy    | N150           | [solution](<../_287. Find the Duplicate Number.md>)                  | c           | Jun 26, 2024    |
+|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                     | Medium  | N150           | [solution](<../_74. Search a 2D Matrix.md>)                          | py          | Jun 15, 2024    |
+|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                       | Medium  | N150           | [solution](<../_167. Two Sum II - Input Array Is Sorted.md>)         | py          | Jun 14, 2024    |
+|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                       | Medium  | N150           | [solution](<../_287. Find the Duplicate Number.md>)                  | c           | Jun 26, 2024    |
 |  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                               | Easy    | Daily          | [solution](<../_350. Intersection of Two Arrays II.md>)              | java, py    | Jul 02, 2024    |
 |  374 | [Guess Number Higher or Lower](<https://leetcode.com/problems/guess-number-higher-or-lower>)                                                 | Easy    |                | [solution](<../_374. Guess Number Higher or Lower.md>)               | java, py    | Jun 02, 2024    |
-|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                           | Easy    |                | [solution](<../_475. Heaters.md>)                                    | py          | Jun 07, 2024    |
-|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                         | Easy    |                | [solution](<../_540. Single Element in a Sorted Array.md>)           | py          | Jul 05, 2024    |
-|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                               | Easy    |                | [solution](<../_611. Valid Triangle Number.md>)                      | py          | May 22, 2024    |
+|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                           | Medium  |                | [solution](<../_475. Heaters.md>)                                    | py          | Jun 07, 2024    |
+|  540 | [Single Element in a Sorted Array](<https://leetcode.com/problems/single-element-in-a-sorted-array>)                                         | Medium  |                | [solution](<../_540. Single Element in a Sorted Array.md>)           | py          | Jul 05, 2024    |
+|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                               | Medium  |                | [solution](<../_611. Valid Triangle Number.md>)                      | py          | May 22, 2024    |
 |  744 | [Find Smallest Letter Greater Than Target](<https://leetcode.com/problems/find-smallest-letter-greater-than-target>)                         | Easy    |                | [solution](<../_744. Find Smallest Letter Greater Than Target.md>)   | java, py    | Jun 01, 2024    |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                     | Easy    | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                 | py          | Jun 18, 2024    |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                       | Easy    |                | [solution](<../_1268. Search Suggestions System.md>)                 | py          | Jun 29, 2024    |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                     | Medium  | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                 | py          | Jun 18, 2024    |
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                       | Medium  |                | [solution](<../_1268. Search Suggestions System.md>)                 | py          | Jun 29, 2024    |
 | 1351 | [Count Negative Numbers in a Sorted Matrix](<https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix>)                       | Easy    |                | [solution](<../_1351. Count Negative Numbers in a Sorted Matrix.md>) | java, py    | Jun 01, 2024    |
-| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                       | Easy    |                | [solution](<../_1482. Minimum Number of Days to Make m Bouquets.md>) | py          | Jun 19, 2024    |
-| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                         | Easy    | Daily          | [solution](<../_1552. Magnetic Force Between Two Balls.md>)          | py          | Jun 20, 2024    |
-| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                       | Easy    | Weekly Premium | [solution](<../_1885. Count Pairs in Two Arrays.md>)                 | py          | Jun 08, 2024    |
+| 1482 | [Minimum Number of Days to Make m Bouquets](<https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets>)                       | Medium  |                | [solution](<../_1482. Minimum Number of Days to Make m Bouquets.md>) | py          | Jun 19, 2024    |
+| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                         | Medium  | Daily          | [solution](<../_1552. Magnetic Force Between Two Balls.md>)          | py          | Jun 20, 2024    |
+| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                       | Medium  | Weekly Premium | [solution](<../_1885. Count Pairs in Two Arrays.md>)                 | py          | Jun 08, 2024    |
 | 2258 | [Escape the Spreading Fire](<https://leetcode.com/problems/escape-the-spreading-fire>)                                                       | Hard    |                | [solution](<../_2258. Escape the Spreading Fire.md>)                 | py          | Jun 15, 2024    |
 | 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                 | Easy    |                | [solution](<../_2389. Longest Subsequence With Limited Sum.md>)      | py          | Jun 01, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>) | Easy    | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)   | py          | Jul 07, 2024    |
\ No newline at end of file
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>) | Medium  | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)   | py          | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Binary Tree.md b/markdowns/by_topic/Binary Tree.md
index ce3726fd..3b403742 100644
--- a/markdowns/by_topic/Binary Tree.md	
+++ b/markdowns/by_topic/Binary Tree.md	
@@ -7,71 +7,71 @@
 |    # | Title                                                                                                                                                    | Level   | Cats           | Solution                                                                              | Languages    | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:--------------------------------------------------------------------------------------|:-------------|:----------------|
 |   94 | [Binary Tree Inorder Traversal](<https://leetcode.com/problems/binary-tree-inorder-traversal>)                                                           | Easy    |                | [solution](<../_94. Binary Tree Inorder Traversal.md>)                                | java, py     | Jun 29, 2024    |
-|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                               | Easy    | B75, N150      | [solution](<../_98. Validate Binary Search Tree.md>)                                  | c            | Jun 23, 2024    |
+|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                               | Medium  | B75, N150      | [solution](<../_98. Validate Binary Search Tree.md>)                                  | c            | Jun 23, 2024    |
 |  100 | [Same Tree](<https://leetcode.com/problems/same-tree>)                                                                                                   | Easy    | B75, N150      | [solution](<../_100. Same Tree.md>)                                                   | py           | Jul 03, 2024    |
-|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                   | Easy    | B75, N150      | [solution](<../_102. Binary Tree Level Order Traversal.md>)                           | java         | Jul 04, 2024    |
-|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                     | Easy    |                | [solution](<../_103. Binary Tree Zigzag Level Order Traversal.md>)                    | py           | Jul 03, 2024    |
+|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                   | Medium  | B75, N150      | [solution](<../_102. Binary Tree Level Order Traversal.md>)                           | java         | Jul 04, 2024    |
+|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                     | Medium  |                | [solution](<../_103. Binary Tree Zigzag Level Order Traversal.md>)                    | py           | Jul 03, 2024    |
 |  104 | [Maximum Depth of Binary Tree](<https://leetcode.com/problems/maximum-depth-of-binary-tree>)                                                             | Easy    | B75, N150      | [solution](<../_104. Maximum Depth of Binary Tree.md>)                                | py           | Jul 04, 2024    |
-|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                             | Easy    |                | [solution](<../_107. Binary Tree Level Order Traversal II.md>)                        | java         | Jul 04, 2024    |
+|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                             | Medium  |                | [solution](<../_107. Binary Tree Level Order Traversal II.md>)                        | java         | Jul 04, 2024    |
 |  110 | [Balanced Binary Tree](<https://leetcode.com/problems/balanced-binary-tree>)                                                                             | Easy    | N150           | [solution](<../_110. Balanced Binary Tree.md>)                                        | py           | Jul 04, 2024    |
 |  111 | [Minimum Depth of Binary Tree](<https://leetcode.com/problems/minimum-depth-of-binary-tree>)                                                             | Easy    |                | [solution](<../_111. Minimum Depth of Binary Tree.md>)                                | c, java      | Jun 07, 2024    |
 |  112 | [Path Sum](<https://leetcode.com/problems/path-sum>)                                                                                                     | Easy    |                | [solution](<../_112. Path Sum.md>)                                                    | py           | Jul 03, 2024    |
-|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                               | Easy    |                | [solution](<../_113. Path Sum II.md>)                                                 | py           | Jul 03, 2024    |
-|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                 | Easy    |                | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                          | c, py        | Jun 11, 2024    |
+|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                               | Medium  |                | [solution](<../_113. Path Sum II.md>)                                                 | py           | Jul 03, 2024    |
+|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                 | Medium  |                | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                          | c, py        | Jun 11, 2024    |
 |  124 | [Binary Tree Maximum Path Sum](<https://leetcode.com/problems/binary-tree-maximum-path-sum>)                                                             | Hard    | B75, N150      | [solution](<../_124. Binary Tree Maximum Path Sum.md>)                                | py           | Jul 04, 2024    |
-|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                     | Easy    |                | [solution](<../_129. Sum Root to Leaf Numbers.md>)                                    | py           | Jun 07, 2024    |
-|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                               | Easy    |                | [solution](<../_173. Binary Search Tree Iterator.md>)                                 | py           | Jun 26, 2024    |
-|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                               | Easy    | N150           | [solution](<../_199. Binary Tree Right Side View.md>)                                 | cpp, java    | Jul 04, 2024    |
+|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                     | Medium  |                | [solution](<../_129. Sum Root to Leaf Numbers.md>)                                    | py           | Jun 07, 2024    |
+|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                               | Medium  |                | [solution](<../_173. Binary Search Tree Iterator.md>)                                 | py           | Jun 26, 2024    |
+|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                               | Medium  | N150           | [solution](<../_199. Binary Tree Right Side View.md>)                                 | cpp, java    | Jul 04, 2024    |
 |  226 | [Invert Binary Tree](<https://leetcode.com/problems/invert-binary-tree>)                                                                                 | Easy    | B75, N150      | [solution](<../_226. Invert Binary Tree.md>)                                          | py           | Jul 03, 2024    |
-|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                           | Easy    | B75, N150      | [solution](<../_230. Kth Smallest Element in a BST.md>)                               | py           | Jun 29, 2024    |
-|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                         | Easy    | B75, N150      | [solution](<../_235. Lowest Common Ancestor of a Binary Search Tree.md>)              | py           | Jul 04, 2024    |
-|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                       | Easy    | B75            | [solution](<../_236. Lowest Common Ancestor of a Binary Tree.md>)                     | py           | Jul 15, 2024    |
+|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                           | Medium  | B75, N150      | [solution](<../_230. Kth Smallest Element in a BST.md>)                               | py           | Jun 29, 2024    |
+|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                         | Medium  | B75, N150      | [solution](<../_235. Lowest Common Ancestor of a Binary Search Tree.md>)              | py           | Jul 04, 2024    |
+|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                       | Medium  | B75            | [solution](<../_236. Lowest Common Ancestor of a Binary Tree.md>)                     | py           | Jul 15, 2024    |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                               | Hard    |                | [solution](<../_272. Closest Binary Search Tree Value II.md>)                         | py           | Jul 01, 2024    |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                             | Easy    |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                        | py           | Jun 12, 2024    |
-|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                 | Easy    |                | [solution](<../_366. Find Leaves of Binary Tree.md>)                                  | py           | Jun 12, 2024    |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)       | Easy    |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)     | py           | Jun 12, 2024    |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                             | Medium  |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                        | py           | Jun 12, 2024    |
+|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                 | Medium  |                | [solution](<../_366. Find Leaves of Binary Tree.md>)                                  | py           | Jun 12, 2024    |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)       | Medium  |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)     | py           | Jun 12, 2024    |
 |  431 | [Encode N-ary Tree to Binary Tree](<https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree>)                                                     | Hard    |                | [solution](<../_431. Encode N-ary Tree to Binary Tree.md>)                            | java, py     | Jun 28, 2024    |
-|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                             | Easy    |                | [solution](<../_437. Path Sum III.md>)                                                | py           | Jul 03, 2024    |
-|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                             | Easy    |                | [solution](<../_450. Delete Node in a BST.md>)                                        | py           | Jun 29, 2024    |
-|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                               | Easy    |                | [solution](<../_513. Find Bottom Left Tree Value.md>)                                 | java         | Jul 03, 2024    |
+|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                             | Medium  |                | [solution](<../_437. Path Sum III.md>)                                                | py           | Jul 03, 2024    |
+|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                             | Medium  |                | [solution](<../_450. Delete Node in a BST.md>)                                        | py           | Jun 29, 2024    |
+|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                               | Medium  |                | [solution](<../_513. Find Bottom Left Tree Value.md>)                                 | java         | Jul 03, 2024    |
 |  543 | [Diameter of Binary Tree](<https://leetcode.com/problems/diameter-of-binary-tree>)                                                                       | Easy    | N150           | [solution](<../_543. Diameter of Binary Tree.md>)                                     | c, java, py  | Jun 03, 2024    |
 |  572 | [Subtree of Another Tree](<https://leetcode.com/problems/subtree-of-another-tree>)                                                                       | Easy    | B75, N150      | [solution](<../_572. Subtree of Another Tree.md>)                                     | py           | Jun 03, 2024    |
 |  637 | [Average of Levels in Binary Tree](<https://leetcode.com/problems/average-of-levels-in-binary-tree>)                                                     | Easy    |                | [solution](<../_637. Average of Levels in Binary Tree.md>)                            | py           | Jul 04, 2024    |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                               | Easy    |                | [solution](<../_654. Maximum Binary Tree.md>)                                         | py           | Jun 12, 2024    |
-|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                             | Easy    | Daily          | [solution](<../_663. Equal Tree Partition.md>)                                        | py           | Jun 17, 2024    |
-|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                               | Easy    |                | [solution](<../_666. Path Sum IV.md>)                                                 | py           | Jul 03, 2024    |
-|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                           | Easy    |                | [solution](<../_687. Longest Univalue Path.md>)                                       | py           | Jul 03, 2024    |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                               | Medium  |                | [solution](<../_654. Maximum Binary Tree.md>)                                         | py           | Jun 12, 2024    |
+|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                             | Medium  | Daily          | [solution](<../_663. Equal Tree Partition.md>)                                        | py           | Jun 17, 2024    |
+|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                               | Medium  |                | [solution](<../_666. Path Sum IV.md>)                                                 | py           | Jul 03, 2024    |
+|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                           | Medium  |                | [solution](<../_687. Longest Univalue Path.md>)                                       | py           | Jul 03, 2024    |
 |  700 | [Search in a Binary Search Tree](<https://leetcode.com/problems/search-in-a-binary-search-tree>)                                                         | Easy    |                | [solution](<../_700. Search in a Binary Search Tree.md>)                              | c, java, py  | Jul 17, 2024    |
 |  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                                       | Easy    | N150           | [solution](<../_703. Kth Largest Element in a Stream.md>)                             | py           | Jul 05, 2024    |
-|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                   | Easy    | Weekly Premium | [solution](<../_776. Split BST.md>)                                                   | py           | Jun 29, 2024    |
-|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                               | Easy    |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                         | py           | Jun 26, 2024    |
-|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                           | Easy    |                | [solution](<../_919. Complete Binary Tree Inserter.md>)                               | py           | Jul 05, 2024    |
+|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                   | Medium  | Weekly Premium | [solution](<../_776. Split BST.md>)                                                   | py           | Jun 29, 2024    |
+|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                               | Medium  |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                         | py           | Jun 26, 2024    |
+|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                           | Medium  |                | [solution](<../_919. Complete Binary Tree Inserter.md>)                               | py           | Jul 05, 2024    |
 |  987 | [Vertical Order Traversal of a Binary Tree](<https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree>)                                   | Hard    |                | [solution](<../_987. Vertical Order Traversal of a Binary Tree.md>)                   | py           | Jun 12, 2024    |
 |  993 | [Cousins in Binary Tree](<https://leetcode.com/problems/cousins-in-binary-tree>)                                                                         | Easy    |                | [solution](<../_993. Cousins in Binary Tree.md>)                                      | py           | Jul 04, 2024    |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)             | Easy    |                | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)       | c, cpp, java | Jun 27, 2024    |
-| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                             | Easy    |                | [solution](<../_1026. Maximum Difference Between Node and Ancestor.md>)               | py           | Jun 23, 2024    |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)             | Medium  |                | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)       | c, cpp, java | Jun 27, 2024    |
+| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                             | Medium  |                | [solution](<../_1026. Maximum Difference Between Node and Ancestor.md>)               | py           | Jun 23, 2024    |
 | 1028 | [Recover a Tree From Preorder Traversal](<https://leetcode.com/problems/recover-a-tree-from-preorder-traversal>)                                         | Hard    |                | [solution](<../_1028. Recover a Tree From Preorder Traversal.md>)                     | py           | Jul 01, 2024    |
-| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                         | Easy    | Daily          | [solution](<../_1038. Binary Search Tree to Greater Sum Tree.md>)                     | c            | Jun 26, 2024    |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                         | Easy    | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                             | py           | Jul 17, 2024    |
-| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                 | Easy    |                | [solution](<../_1161. Maximum Level Sum of a Binary Tree.md>)                         | py           | Jul 17, 2024    |
-| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                 | Easy    |                | [solution](<../_1302. Deepest Leaves Sum.md>)                                         | c, js, py    | Jun 07, 2024    |
-| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                       | Easy    |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                    | java         | Jun 24, 2024    |
-| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                   | Easy    |                | [solution](<../_1315. Sum of Nodes with Even-Valued Grandparent.md>)                  | py           | Jun 12, 2024    |
-| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                             | Easy    |                | [solution](<../_1372. Longest ZigZag Path in a Binary Tree.md>)                       | py           | Jul 05, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                             | Easy    | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                               | py           | Jun 29, 2024    |
-| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                       | Easy    | N150           | [solution](<../_1448. Count Good Nodes in Binary Tree.md>)                            | java         | Jul 04, 2024    |
-| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                   | Easy    |                | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                  | py           | Jul 05, 2024    |
-| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                       | Easy    | Daily          | [solution](<../_1530. Number of Good Leaf Nodes Pairs.md>)                            | py           | Jul 18, 2024    |
-| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                         | Easy    |                | [solution](<../_1602. Find Nearest Right Node in Binary Tree.md>)                     | java, py     | Jul 03, 2024    |
-| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                           | Easy    |                | [solution](<../_1609. Even Odd Tree.md>)                                              | py           | Jul 05, 2024    |
-| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                               | Easy    |                | [solution](<../_1650. Lowest Common Ancestor of a Binary Tree III.md>)                | py           | Jun 10, 2024    |
-| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                           | Easy    |                | [solution](<../_1660. Correct a Binary Tree.md>)                                      | py           | Jun 27, 2024    |
-| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                 | Easy    |                | [solution](<../_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                 | py           | Jun 29, 2024    |
-| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                         | Easy    | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                             | py           | Jul 15, 2024    |
-| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                       | Easy    |                | [solution](<../_1973. Count Nodes Equal to Sum of Descendants.md>)                    | c            | Jun 23, 2024    |
-| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>) | Easy    | Daily          | [solution](<../_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>) | py           | Jul 16, 2024    |
-| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                             | Easy    | Daily          | [solution](<../_2196. Create Binary Tree From Descriptions.md>)                       | py           | Jul 15, 2024    |
-| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                       | Easy    |                | [solution](<../_2265. Count Nodes Equal to Average of Subtree.md>)                    | js, py       | Jun 07, 2024    |
-| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                           | Easy    |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)              | py           | Jun 26, 2024    |
-| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                   | Easy    |                | [solution](<../_2415. Reverse Odd Levels of Binary Tree.md>)                          | py           | Jun 23, 2024    |
-| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                       | Easy    |                | [solution](<../_3157. Find the Level of Tree with Minimum Sum.md>)                    | py           | Jul 05, 2024    |
\ No newline at end of file
+| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                         | Medium  | Daily          | [solution](<../_1038. Binary Search Tree to Greater Sum Tree.md>)                     | c            | Jun 26, 2024    |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                         | Medium  | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                             | py           | Jul 17, 2024    |
+| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                 | Medium  |                | [solution](<../_1161. Maximum Level Sum of a Binary Tree.md>)                         | py           | Jul 17, 2024    |
+| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                 | Medium  |                | [solution](<../_1302. Deepest Leaves Sum.md>)                                         | c, js, py    | Jun 07, 2024    |
+| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                       | Medium  |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                    | java         | Jun 24, 2024    |
+| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                   | Medium  |                | [solution](<../_1315. Sum of Nodes with Even-Valued Grandparent.md>)                  | py           | Jun 12, 2024    |
+| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                             | Medium  |                | [solution](<../_1372. Longest ZigZag Path in a Binary Tree.md>)                       | py           | Jul 05, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                             | Medium  | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                               | py           | Jun 29, 2024    |
+| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                       | Medium  | N150           | [solution](<../_1448. Count Good Nodes in Binary Tree.md>)                            | java         | Jul 04, 2024    |
+| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                   | Medium  |                | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                  | py           | Jul 05, 2024    |
+| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                       | Medium  | Daily          | [solution](<../_1530. Number of Good Leaf Nodes Pairs.md>)                            | py           | Jul 18, 2024    |
+| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                         | Medium  |                | [solution](<../_1602. Find Nearest Right Node in Binary Tree.md>)                     | java, py     | Jul 03, 2024    |
+| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                           | Medium  |                | [solution](<../_1609. Even Odd Tree.md>)                                              | py           | Jul 05, 2024    |
+| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                               | Medium  |                | [solution](<../_1650. Lowest Common Ancestor of a Binary Tree III.md>)                | py           | Jun 10, 2024    |
+| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                           | Medium  |                | [solution](<../_1660. Correct a Binary Tree.md>)                                      | py           | Jun 27, 2024    |
+| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                 | Medium  |                | [solution](<../_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                 | py           | Jun 29, 2024    |
+| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                         | Medium  | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                             | py           | Jul 15, 2024    |
+| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                       | Medium  |                | [solution](<../_1973. Count Nodes Equal to Sum of Descendants.md>)                    | c            | Jun 23, 2024    |
+| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>) | Medium  | Daily          | [solution](<../_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>) | py           | Jul 16, 2024    |
+| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                             | Medium  | Daily          | [solution](<../_2196. Create Binary Tree From Descriptions.md>)                       | py           | Jul 15, 2024    |
+| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                       | Medium  |                | [solution](<../_2265. Count Nodes Equal to Average of Subtree.md>)                    | js, py       | Jun 07, 2024    |
+| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                           | Medium  |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)              | py           | Jun 26, 2024    |
+| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                   | Medium  |                | [solution](<../_2415. Reverse Odd Levels of Binary Tree.md>)                          | py           | Jun 23, 2024    |
+| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                       | Medium  |                | [solution](<../_3157. Find the Level of Tree with Minimum Sum.md>)                    | py           | Jul 05, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Bit Manipulation.md b/markdowns/by_topic/Bit Manipulation.md
index 347f3985..d56e4adc 100644
--- a/markdowns/by_topic/Bit Manipulation.md	
+++ b/markdowns/by_topic/Bit Manipulation.md	
@@ -6,30 +6,30 @@
 
 |    # | Title                                                                                                                                                                    | Level   | Cats      | Solution                                                                                      | Languages        | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:----------------------------------------------------------------------------------------------|:-----------------|:----------------|
-|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                       | Easy    | N150      | [solution](<../_78. Subsets.md>)                                                              | py               | Jun 02, 2024    |
-|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                 | Easy    | N150      | [solution](<../_90. Subsets II.md>)                                                           | py               | Jul 03, 2024    |
+|   78 | [Subsets](<https://leetcode.com/problems/subsets>)                                                                                                                       | Medium  | N150      | [solution](<../_78. Subsets.md>)                                                              | py               | Jun 02, 2024    |
+|   90 | [Subsets II](<https://leetcode.com/problems/subsets-ii>)                                                                                                                 | Medium  | N150      | [solution](<../_90. Subsets II.md>)                                                           | py               | Jul 03, 2024    |
 |  136 | [Single Number](<https://leetcode.com/problems/single-number>)                                                                                                           | Easy    | N150      | [solution](<../_136. Single Number.md>)                                                       | py               | Jul 03, 2024    |
 |  191 | [Number of 1 Bits](<https://leetcode.com/problems/number-of-1-bits>)                                                                                                     | Easy    | B75, N150 | [solution](<../_191. Number of 1 Bits.md>)                                                    | py               | Jul 03, 2024    |
-|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                   | Easy    | Daily     | [solution](<../_260. Single Number III.md>)                                                   | py               | Jun 08, 2024    |
-|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                   | Easy    | N150      | [solution](<../_287. Find the Duplicate Number.md>)                                           | c                | Jun 26, 2024    |
+|  260 | [Single Number III](<https://leetcode.com/problems/single-number-iii>)                                                                                                   | Medium  | Daily     | [solution](<../_260. Single Number III.md>)                                                   | py               | Jun 08, 2024    |
+|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                                   | Medium  | N150      | [solution](<../_287. Find the Duplicate Number.md>)                                           | c                | Jun 26, 2024    |
 |  645 | [Set Mismatch](<https://leetcode.com/problems/set-mismatch>)                                                                                                             | Easy    |           | [solution](<../_645. Set Mismatch.md>)                                                        | java, py         | Jun 01, 2024    |
-|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                       | Easy    |           | [solution](<../_784. Letter Case Permutation.md>)                                             | py               | Jun 15, 2024    |
-|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                               | Easy    |           | [solution](<../_861. Score After Flipping Matrix.md>)                                         | c, py            | Jun 10, 2024    |
+|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                       | Medium  |           | [solution](<../_784. Letter Case Permutation.md>)                                             | py               | Jun 15, 2024    |
+|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                               | Medium  |           | [solution](<../_861. Score After Flipping Matrix.md>)                                         | c, py            | Jun 10, 2024    |
 |  995 | [Minimum Number of K Consecutive Bit Flips](<https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips>)                                                   | Hard    | Daily     | [solution](<../_995. Minimum Number of K Consecutive Bit Flips.md>)                           | c, py            | Jun 24, 2024    |
 | 1018 | [Binary Prefix Divisible By 5](<https://leetcode.com/problems/binary-prefix-divisible-by-5>)                                                                             | Easy    |           | [solution](<../_1018. Binary Prefix Divisible By 5.md>)                                       | py               | Jul 04, 2024    |
-| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)         | Easy    |           | [solution](<../_1239. Maximum Length of a Concatenated String with Unique Characters.md>)     | py               | Jun 29, 2024    |
+| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)         | Medium  |           | [solution](<../_1239. Maximum Length of a Concatenated String with Unique Characters.md>)     | py               | Jun 29, 2024    |
 | 1255 | [Maximum Score Words Formed by Letters](<https://leetcode.com/problems/maximum-score-words-formed-by-letters>)                                                           | Hard    |           | [solution](<../_1255. Maximum Score Words Formed by Letters.md>)                              | py               | Jun 15, 2024    |
 | 1284 | [Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](<https://leetcode.com/problems/minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix>)       | Hard    |           | [solution](<../_1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix.md>)    | py               | Jun 09, 2024    |
-| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>) | Easy    | Daily     | [solution](<../_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>) | py               | Jun 08, 2024    |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                             | Easy    | Daily     | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)               | py               | Jun 08, 2024    |
-| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                   | Easy    |           | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                          | py               | Jul 05, 2024    |
-| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                           | Easy    |           | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>)              | py               | Jul 12, 2024    |
-| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                           | Easy    |           | [solution](<../_1525. Number of Good Ways to Split a String.md>)                              | py               | Jun 01, 2024    |
+| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>) | Medium  | Daily     | [solution](<../_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>) | py               | Jun 08, 2024    |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                             | Medium  | Daily     | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)               | py               | Jun 08, 2024    |
+| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                                   | Medium  |           | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                          | py               | Jul 05, 2024    |
+| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                           | Medium  |           | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>)              | py               | Jul 12, 2024    |
+| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                           | Medium  |           | [solution](<../_1525. Number of Good Ways to Split a String.md>)                              | py               | Jun 01, 2024    |
 | 1684 | [Count the Number of Consistent Strings](<https://leetcode.com/problems/count-the-number-of-consistent-strings>)                                                         | Easy    |           | [solution](<../_1684. Count the Number of Consistent Strings.md>)                             | c, py            | Jun 06, 2024    |
 | 2206 | [Divide Array Into Equal Pairs](<https://leetcode.com/problems/divide-array-into-equal-pairs>)                                                                           | Easy    |           | [solution](<../_2206. Divide Array Into Equal Pairs.md>)                                      | c, py            | Jun 08, 2024    |
-| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                            | Easy    |           | [solution](<../_2317. Maximum XOR After Operations .md>)                                      | c, cpp, java, py | Jun 24, 2024    |
-| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                           | Easy    |           | [solution](<../_2433. Find The Original Array of Prefix Xor.md>)                              | py               | May 31, 2024    |
-| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                   | Easy    |           | [solution](<../_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)          | java, py         | Jun 12, 2024    |
-| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                 | Easy    |           | [solution](<../_3064. Guess the Number Using Bitwise Questions I.md>)                         | c, py            | Jun 06, 2024    |
-| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)       | Easy    |           | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)    | java             | Jun 22, 2024    |
-| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)               | Easy    | Contest   | [solution](<../_3211. Generate Binary Strings Without Adjacent Zeros.md>)                     | js, py           | Jul 07, 2024    |
\ No newline at end of file
+| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                            | Medium  |           | [solution](<../_2317. Maximum XOR After Operations .md>)                                      | c, cpp, java, py | Jun 24, 2024    |
+| 2433 | [Find The Original Array of Prefix Xor](<https://leetcode.com/problems/find-the-original-array-of-prefix-xor>)                                                           | Medium  |           | [solution](<../_2433. Find The Original Array of Prefix Xor.md>)                              | py               | May 31, 2024    |
+| 2997 | [Minimum Number of Operations to Make Array XOR Equal to K](<https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k>)                   | Medium  |           | [solution](<../_2997. Minimum Number of Operations to Make Array XOR Equal to K.md>)          | java, py         | Jun 12, 2024    |
+| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>)                                                 | Medium  |           | [solution](<../_3064. Guess the Number Using Bitwise Questions I.md>)                         | c, py            | Jun 06, 2024    |
+| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)       | Medium  |           | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)    | java             | Jun 22, 2024    |
+| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)               | Medium  | Contest   | [solution](<../_3211. Generate Binary Strings Without Adjacent Zeros.md>)                     | js, py           | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Brainteaser.md b/markdowns/by_topic/Brainteaser.md
index 08b96795..cdbd9018 100644
--- a/markdowns/by_topic/Brainteaser.md
+++ b/markdowns/by_topic/Brainteaser.md
@@ -7,4 +7,4 @@
 |    # | Title                                                                                      | Level   | Cats   | Solution                                               | Languages                        | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------|:--------|:-------|:-------------------------------------------------------|:---------------------------------|:----------------|
 |  292 | [Nim Game](<https://leetcode.com/problems/nim-game>)                                       | Easy    |        | [solution](<../_292. Nim Game.md>)                     | py                               | May 23, 2024    |
-| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>) | Easy    |        | [solution](<../_2396. Strictly Palindromic Number.md>) | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
\ No newline at end of file
+| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>) | Medium  |        | [solution](<../_2396. Strictly Palindromic Number.md>) | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Breadth-First Search.md b/markdowns/by_topic/Breadth-First Search.md
index 51c08bdf..b1b948ee 100644
--- a/markdowns/by_topic/Breadth-First Search.md	
+++ b/markdowns/by_topic/Breadth-First Search.md	
@@ -7,51 +7,51 @@
 |    # | Title                                                                                                                                                              | Level   | Cats           | Solution                                                                                   | Languages   | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:-------------------------------------------------------------------------------------------|:------------|:----------------|
 |  100 | [Same Tree](<https://leetcode.com/problems/same-tree>)                                                                                                             | Easy    | B75, N150      | [solution](<../_100. Same Tree.md>)                                                        | py          | Jul 03, 2024    |
-|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                             | Easy    | B75, N150      | [solution](<../_102. Binary Tree Level Order Traversal.md>)                                | java        | Jul 04, 2024    |
-|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                               | Easy    |                | [solution](<../_103. Binary Tree Zigzag Level Order Traversal.md>)                         | py          | Jul 03, 2024    |
+|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                             | Medium  | B75, N150      | [solution](<../_102. Binary Tree Level Order Traversal.md>)                                | java        | Jul 04, 2024    |
+|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                               | Medium  |                | [solution](<../_103. Binary Tree Zigzag Level Order Traversal.md>)                         | py          | Jul 03, 2024    |
 |  104 | [Maximum Depth of Binary Tree](<https://leetcode.com/problems/maximum-depth-of-binary-tree>)                                                                       | Easy    | B75, N150      | [solution](<../_104. Maximum Depth of Binary Tree.md>)                                     | py          | Jul 04, 2024    |
-|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                       | Easy    |                | [solution](<../_107. Binary Tree Level Order Traversal II.md>)                             | java        | Jul 04, 2024    |
+|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                                       | Medium  |                | [solution](<../_107. Binary Tree Level Order Traversal II.md>)                             | java        | Jul 04, 2024    |
 |  111 | [Minimum Depth of Binary Tree](<https://leetcode.com/problems/minimum-depth-of-binary-tree>)                                                                       | Easy    |                | [solution](<../_111. Minimum Depth of Binary Tree.md>)                                     | c, java     | Jun 07, 2024    |
 |  112 | [Path Sum](<https://leetcode.com/problems/path-sum>)                                                                                                               | Easy    |                | [solution](<../_112. Path Sum.md>)                                                         | py          | Jul 03, 2024    |
-|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                         | Easy    | N150           | [solution](<../_199. Binary Tree Right Side View.md>)                                      | cpp, java   | Jul 04, 2024    |
-|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                             | Easy    | B75, N150      | [solution](<../_200. Number of Islands.md>)                                                | py          | Jun 17, 2024    |
+|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                                         | Medium  | N150           | [solution](<../_199. Binary Tree Right Side View.md>)                                      | cpp, java   | Jul 04, 2024    |
+|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                             | Medium  | B75, N150      | [solution](<../_200. Number of Islands.md>)                                                | py          | Jun 17, 2024    |
 |  226 | [Invert Binary Tree](<https://leetcode.com/problems/invert-binary-tree>)                                                                                           | Easy    | B75, N150      | [solution](<../_226. Invert Binary Tree.md>)                                               | py          | Jul 03, 2024    |
-|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                 | Easy    | N150           | [solution](<../_286. Walls and Gates.md>)                                                  | py          | Jun 15, 2024    |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                       | Easy    |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                             | py          | Jun 12, 2024    |
-|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                   | Easy    |                | [solution](<../_339. Nested List Weight Sum.md>)                                           | c, py       | Jul 02, 2024    |
-|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                             | Easy    |                | [solution](<../_364. Nested List Weight Sum II.md>)                                        | java, py    | Jul 02, 2024    |
-|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                               | Easy    |                | [solution](<../_429. N-ary Tree Level Order Traversal.md>)                                 | py          | Jul 04, 2024    |
+|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                 | Medium  | N150           | [solution](<../_286. Walls and Gates.md>)                                                  | py          | Jun 15, 2024    |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                       | Medium  |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                             | py          | Jun 12, 2024    |
+|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                                   | Medium  |                | [solution](<../_339. Nested List Weight Sum.md>)                                           | c, py       | Jul 02, 2024    |
+|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                             | Medium  |                | [solution](<../_364. Nested List Weight Sum II.md>)                                        | java, py    | Jul 02, 2024    |
+|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                               | Medium  |                | [solution](<../_429. N-ary Tree Level Order Traversal.md>)                                 | py          | Jul 04, 2024    |
 |  431 | [Encode N-ary Tree to Binary Tree](<https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree>)                                                               | Hard    |                | [solution](<../_431. Encode N-ary Tree to Binary Tree.md>)                                 | java, py    | Jun 28, 2024    |
-|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                         | Easy    |                | [solution](<../_513. Find Bottom Left Tree Value.md>)                                      | java        | Jul 03, 2024    |
-|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                             | Easy    |                | [solution](<../_542. 01 Matrix.md>)                                                        | py          | Jun 26, 2024    |
+|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                                         | Medium  |                | [solution](<../_513. Find Bottom Left Tree Value.md>)                                      | java        | Jul 03, 2024    |
+|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                             | Medium  |                | [solution](<../_542. 01 Matrix.md>)                                                        | py          | Jun 26, 2024    |
 |  637 | [Average of Levels in Binary Tree](<https://leetcode.com/problems/average-of-levels-in-binary-tree>)                                                               | Easy    |                | [solution](<../_637. Average of Levels in Binary Tree.md>)                                 | py          | Jul 04, 2024    |
-|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                         | Easy    |                | [solution](<../_690. Employee Importance.md>)                                              | java        | Jul 02, 2024    |
-|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                           | Easy    | N150           | [solution](<../_695. Max Area of Island.md>)                                               | c           | Jun 24, 2024    |
-|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                         | Easy    |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                              | py          | Jun 26, 2024    |
-|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                           | Easy    |                | [solution](<../_909. Snakes and Ladders.md>)                                               | py          | Jun 12, 2024    |
-|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                     | Easy    |                | [solution](<../_919. Complete Binary Tree Inserter.md>)                                    | py          | Jul 05, 2024    |
+|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                         | Medium  |                | [solution](<../_690. Employee Importance.md>)                                              | java        | Jul 02, 2024    |
+|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                           | Medium  | N150           | [solution](<../_695. Max Area of Island.md>)                                               | c           | Jun 24, 2024    |
+|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                         | Medium  |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                              | py          | Jun 26, 2024    |
+|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                           | Medium  |                | [solution](<../_909. Snakes and Ladders.md>)                                               | py          | Jun 12, 2024    |
+|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                                     | Medium  |                | [solution](<../_919. Complete Binary Tree Inserter.md>)                                    | py          | Jul 05, 2024    |
 |  987 | [Vertical Order Traversal of a Binary Tree](<https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree>)                                             | Hard    |                | [solution](<../_987. Vertical Order Traversal of a Binary Tree.md>)                        | py          | Jun 12, 2024    |
 |  993 | [Cousins in Binary Tree](<https://leetcode.com/problems/cousins-in-binary-tree>)                                                                                   | Easy    |                | [solution](<../_993. Cousins in Binary Tree.md>)                                           | py          | Jul 04, 2024    |
-|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                 | Easy    | N150           | [solution](<../_994. Rotting Oranges.md>)                                                  | py          | Jun 15, 2024    |
-| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                           | Easy    |                | [solution](<../_1020. Number of Enclaves.md>)                                              | py          | Jun 26, 2024    |
-| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                 | Easy    |                | [solution](<../_1087. Brace Expansion.md>)                                                 | py          | Jun 15, 2024    |
-| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                           | Easy    |                | [solution](<../_1161. Maximum Level Sum of a Binary Tree.md>)                              | py          | Jul 17, 2024    |
-| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                               | Easy    |                | [solution](<../_1254. Number of Closed Islands.md>)                                        | py          | Jun 26, 2024    |
+|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                 | Medium  | N150           | [solution](<../_994. Rotting Oranges.md>)                                                  | py          | Jun 15, 2024    |
+| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                           | Medium  |                | [solution](<../_1020. Number of Enclaves.md>)                                              | py          | Jun 26, 2024    |
+| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                 | Medium  |                | [solution](<../_1087. Brace Expansion.md>)                                                 | py          | Jun 15, 2024    |
+| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                           | Medium  |                | [solution](<../_1161. Maximum Level Sum of a Binary Tree.md>)                              | py          | Jul 17, 2024    |
+| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                               | Medium  |                | [solution](<../_1254. Number of Closed Islands.md>)                                        | py          | Jun 26, 2024    |
 | 1284 | [Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](<https://leetcode.com/problems/minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix>) | Hard    |                | [solution](<../_1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix.md>) | py          | Jun 09, 2024    |
-| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                           | Easy    |                | [solution](<../_1302. Deepest Leaves Sum.md>)                                              | c, js, py   | Jun 07, 2024    |
-| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                             | Easy    |                | [solution](<../_1315. Sum of Nodes with Even-Valued Grandparent.md>)                       | py          | Jun 12, 2024    |
-| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                 | Easy    | N150           | [solution](<../_1448. Count Good Nodes in Binary Tree.md>)                                 | java        | Jul 04, 2024    |
-| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                             | Easy    |                | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                       | py          | Jul 05, 2024    |
-| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                               | Easy    |                | [solution](<../_1490. Clone N-ary Tree.md>)                                                | java, py    | Jun 02, 2024    |
-| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                   | Easy    |                | [solution](<../_1602. Find Nearest Right Node in Binary Tree.md>)                          | java, py    | Jul 03, 2024    |
-| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                     | Easy    |                | [solution](<../_1609. Even Odd Tree.md>)                                                   | py          | Jul 05, 2024    |
-| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                     | Easy    |                | [solution](<../_1660. Correct a Binary Tree.md>)                                           | py          | Jun 27, 2024    |
-| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                             | Easy    |                | [solution](<../_1730. Shortest Path to Get Food.md>)                                       | py          | Jun 26, 2024    |
-| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                   | Easy    | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                                  | py          | Jul 15, 2024    |
-| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                             | Easy    |                | [solution](<../_1905. Count Sub Islands.md>)                                               | py          | Jun 24, 2024    |
-| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                         | Easy    |                | [solution](<../_1992. Find All Groups of Farmland.md>)                                     | java, py    | Jun 24, 2024    |
-| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                         | Easy    | Daily          | [solution](<../_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)             | java, py    | Jun 29, 2024    |
+| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                           | Medium  |                | [solution](<../_1302. Deepest Leaves Sum.md>)                                              | c, js, py   | Jun 07, 2024    |
+| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                             | Medium  |                | [solution](<../_1315. Sum of Nodes with Even-Valued Grandparent.md>)                       | py          | Jun 12, 2024    |
+| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                                 | Medium  | N150           | [solution](<../_1448. Count Good Nodes in Binary Tree.md>)                                 | java        | Jul 04, 2024    |
+| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                             | Medium  |                | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                       | py          | Jul 05, 2024    |
+| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                               | Medium  |                | [solution](<../_1490. Clone N-ary Tree.md>)                                                | java, py    | Jun 02, 2024    |
+| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                                   | Medium  |                | [solution](<../_1602. Find Nearest Right Node in Binary Tree.md>)                          | java, py    | Jul 03, 2024    |
+| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                                     | Medium  |                | [solution](<../_1609. Even Odd Tree.md>)                                                   | py          | Jul 05, 2024    |
+| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                     | Medium  |                | [solution](<../_1660. Correct a Binary Tree.md>)                                           | py          | Jun 27, 2024    |
+| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                             | Medium  |                | [solution](<../_1730. Shortest Path to Get Food.md>)                                       | py          | Jun 26, 2024    |
+| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                   | Medium  | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                                  | py          | Jul 15, 2024    |
+| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                             | Medium  |                | [solution](<../_1905. Count Sub Islands.md>)                                               | py          | Jun 24, 2024    |
+| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                         | Medium  |                | [solution](<../_1992. Find All Groups of Farmland.md>)                                     | java, py    | Jun 24, 2024    |
+| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)                         | Medium  | Daily          | [solution](<../_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)             | java, py    | Jun 29, 2024    |
 | 2258 | [Escape the Spreading Fire](<https://leetcode.com/problems/escape-the-spreading-fire>)                                                                             | Hard    |                | [solution](<../_2258. Escape the Spreading Fire.md>)                                       | py          | Jun 15, 2024    |
-| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                     | Easy    |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)                   | py          | Jun 26, 2024    |
-| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                             | Easy    |                | [solution](<../_2415. Reverse Odd Levels of Binary Tree.md>)                               | py          | Jun 23, 2024    |
-| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                 | Easy    |                | [solution](<../_3157. Find the Level of Tree with Minimum Sum.md>)                         | py          | Jul 05, 2024    |
\ No newline at end of file
+| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                     | Medium  |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)                   | py          | Jun 26, 2024    |
+| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                             | Medium  |                | [solution](<../_2415. Reverse Odd Levels of Binary Tree.md>)                               | py          | Jun 23, 2024    |
+| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                                 | Medium  |                | [solution](<../_3157. Find the Level of Tree with Minimum Sum.md>)                         | py          | Jul 05, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Bucket Sort.md b/markdowns/by_topic/Bucket Sort.md
index 34442325..fdd4a7c9 100644
--- a/markdowns/by_topic/Bucket Sort.md	
+++ b/markdowns/by_topic/Bucket Sort.md	
@@ -6,6 +6,6 @@
 
 |   # | Title                                                                                        | Level   | Cats      | Solution                                               | Languages   | Date Complete   |
 |----:|:---------------------------------------------------------------------------------------------|:--------|:----------|:-------------------------------------------------------|:------------|:----------------|
-| 347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)           | Easy    | B75, N150 | [solution](<../_347. Top K Frequent Elements.md>)      | py          | Jun 13, 2024    |
-| 451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>) | Easy    |           | [solution](<../_451. Sort Characters By Frequency.md>) | py          | Jun 18, 2024    |
-| 692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                 | Easy    |           | [solution](<../_692. Top K Frequent Words.md>)         | py          | Jun 09, 2024    |
\ No newline at end of file
+| 347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)           | Medium  | B75, N150 | [solution](<../_347. Top K Frequent Elements.md>)      | py          | Jun 13, 2024    |
+| 451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>) | Medium  |           | [solution](<../_451. Sort Characters By Frequency.md>) | py          | Jun 18, 2024    |
+| 692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                 | Medium  |           | [solution](<../_692. Top K Frequent Words.md>)         | py          | Jun 09, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Combinatorics.md b/markdowns/by_topic/Combinatorics.md
index 7056ca17..ed3052d7 100644
--- a/markdowns/by_topic/Combinatorics.md
+++ b/markdowns/by_topic/Combinatorics.md
@@ -6,7 +6,7 @@
 
 |    # | Title                                                                                                                                | Level   | Cats    | Solution                                                           | Languages    | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------|:--------|:--------|:-------------------------------------------------------------------|:-------------|:----------------|
-| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                             | Easy    |         | [solution](<../_1641. Count Sorted Vowel Strings.md>)              | c, cpp, java | Jun 24, 2024    |
-| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                   | Easy    |         | [solution](<../_2221. Find Triangular Sum of an Array.md>)         | c, java      | Jun 27, 2024    |
+| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                             | Medium  |         | [solution](<../_1641. Count Sorted Vowel Strings.md>)              | c, cpp, java | Jun 24, 2024    |
+| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                   | Medium  |         | [solution](<../_2221. Find Triangular Sum of an Array.md>)         | c, java      | Jun 27, 2024    |
 | 2954 | [Count the Number of Infection Sequences](<https://leetcode.com/problems/count-the-number-of-infection-sequences>)                   | Hard    |         | [solution](<../_2954. Count the Number of Infection Sequences.md>) | py           | Jun 26, 2024    |
-| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>) | Easy    | Contest | [solution](<../_3179. Find the N-th Value After K Seconds.md>)     | py           | Jul 07, 2024    |
\ No newline at end of file
+| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>) | Medium  | Contest | [solution](<../_3179. Find the N-th Value After K Seconds.md>)     | py           | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Counting.md b/markdowns/by_topic/Counting.md
index 4f9f4887..8101813e 100644
--- a/markdowns/by_topic/Counting.md
+++ b/markdowns/by_topic/Counting.md
@@ -6,21 +6,21 @@
 
 |    # | Title                                                                                                                                        | Level   | Cats           | Solution                                                                      | Languages   | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:------------------------------------------------------------------------------|:------------|:----------------|
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                           | Easy    | B75, N150      | [solution](<../_347. Top K Frequent Elements.md>)                             | py          | Jun 13, 2024    |
-|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                 | Easy    |                | [solution](<../_451. Sort Characters By Frequency.md>)                        | py          | Jun 18, 2024    |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                 | Easy    |                | [solution](<../_692. Top K Frequent Words.md>)                                | py          | Jun 09, 2024    |
-|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                             | Easy    | Daily          | [solution](<../_945. Minimum Increment to Make Array Unique.md>)              | py          | Jun 14, 2024    |
-| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)         | Easy    |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)   | py          | Jun 15, 2024    |
-| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                     | Easy    |                | [solution](<../_1657. Determine if Two Strings Are Close.md>)                 | py          | Jul 13, 2024    |
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                           | Medium  | B75, N150      | [solution](<../_347. Top K Frequent Elements.md>)                             | py          | Jun 13, 2024    |
+|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                 | Medium  |                | [solution](<../_451. Sort Characters By Frequency.md>)                        | py          | Jun 18, 2024    |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                 | Medium  |                | [solution](<../_692. Top K Frequent Words.md>)                                | py          | Jun 09, 2024    |
+|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                             | Medium  | Daily          | [solution](<../_945. Minimum Increment to Make Array Unique.md>)              | py          | Jun 14, 2024    |
+| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)         | Medium  |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)   | py          | Jun 15, 2024    |
+| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                     | Medium  |                | [solution](<../_1657. Determine if Two Strings Are Close.md>)                 | py          | Jul 13, 2024    |
 | 1748 | [Sum of Unique Elements](<https://leetcode.com/problems/sum-of-unique-elements>)                                                             | Easy    |                | [solution](<../_1748. Sum of Unique Elements.md>)                             | c           | Jun 06, 2024    |
-| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)         | Easy    | Weekly Premium | [solution](<../_1940. Longest Common Subsequence Between Sorted Arrays.md>)   | java, py    | Jun 01, 2024    |
-| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                             | Easy    | N150           | [solution](<../_2013. Detect Squares.md>)                                     | py          | Jun 28, 2024    |
-| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)     | Easy    | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>) | c, py       | Jun 10, 2024    |
+| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)         | Medium  | Weekly Premium | [solution](<../_1940. Longest Common Subsequence Between Sorted Arrays.md>)   | java, py    | Jun 01, 2024    |
+| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                             | Medium  | N150           | [solution](<../_2013. Detect Squares.md>)                                     | py          | Jun 28, 2024    |
+| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)     | Medium  | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>) | c, py       | Jun 10, 2024    |
 | 2206 | [Divide Array Into Equal Pairs](<https://leetcode.com/problems/divide-array-into-equal-pairs>)                                               | Easy    |                | [solution](<../_2206. Divide Array Into Equal Pairs.md>)                      | c, py       | Jun 08, 2024    |
-| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                 | Easy    |                | [solution](<../_2225. Find Players With Zero or One Losses.md>)               | java        | Jun 24, 2024    |
+| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                 | Medium  |                | [solution](<../_2225. Find Players With Zero or One Losses.md>)               | java        | Jun 24, 2024    |
 | 2248 | [Intersection of Multiple Arrays](<https://leetcode.com/problems/intersection-of-multiple-arrays>)                                           | Easy    |                | [solution](<../_2248. Intersection of Multiple Arrays.md>)                    | py          | May 31, 2024    |
-| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                 | Easy    |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                       | py          | Jul 05, 2024    |
+| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                 | Medium  |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                       | py          | Jul 05, 2024    |
 | 2423 | [Remove Letter To Equalize Frequency](<https://leetcode.com/problems/remove-letter-to-equalize-frequency>)                                   | Easy    |                | [solution](<../_2423. Remove Letter To Equalize Frequency.md>)                | py          | Jun 17, 2024    |
 | 3184 | Weekly Contest 402 - q1 - [Count Pairs That Form a Complete Day I](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-i>)   | Easy    | Contest        | [solution](<../_3184. Count Pairs That Form a Complete Day I.md>)             | py          | Jul 07, 2024    |
-| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>) | Easy    | Contest        | [solution](<../_3185. Count Pairs That Form a Complete Day II.md>)            | py          | Jul 07, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>) | Easy    | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)            | py          | Jul 07, 2024    |
\ No newline at end of file
+| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>) | Medium  | Contest        | [solution](<../_3185. Count Pairs That Form a Complete Day II.md>)            | py          | Jul 07, 2024    |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>) | Medium  | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)            | py          | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Data Stream.md b/markdowns/by_topic/Data Stream.md
index c20932ae..51f124be 100644
--- a/markdowns/by_topic/Data Stream.md	
+++ b/markdowns/by_topic/Data Stream.md	
@@ -7,4 +7,4 @@
 |    # | Title                                                                                              | Level   | Cats   | Solution                                                  | Languages   | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------|:--------|:-------|:----------------------------------------------------------|:------------|:----------------|
 |  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>) | Easy    | N150   | [solution](<../_703. Kth Largest Element in a Stream.md>) | py          | Jul 05, 2024    |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                   | Easy    |        | [solution](<../_1472. Design Browser History.md>)         | py          | Jul 06, 2024    |
\ No newline at end of file
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                   | Medium  |        | [solution](<../_1472. Design Browser History.md>)         | py          | Jul 06, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Database.md b/markdowns/by_topic/Database.md
index 936c988a..7f92b1b0 100644
--- a/markdowns/by_topic/Database.md
+++ b/markdowns/by_topic/Database.md
@@ -7,12 +7,12 @@
 |    # | Title                                                                                                                          | Level   | Cats   | Solution                                                                | Languages   | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:------------------------------------------------------------------------|:------------|:----------------|
 |  175 | [Combine Two Tables](<https://leetcode.com/problems/combine-two-tables>)                                                       | Easy    |        | [solution](<../_175. Combine Two Tables.md>)                            | py, sql     | May 22, 2024    |
-|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                 | Easy    |        | [solution](<../_176. Second Highest Salary.md>)                         | sql         | May 22, 2024    |
-|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                       | Easy    |        | [solution](<../_177. Nth Highest Salary.md>)                            | sql         | May 22, 2024    |
+|  176 | [Second Highest Salary](<https://leetcode.com/problems/second-highest-salary>)                                                 | Medium  |        | [solution](<../_176. Second Highest Salary.md>)                         | sql         | May 22, 2024    |
+|  177 | [Nth Highest Salary](<https://leetcode.com/problems/nth-highest-salary>)                                                       | Medium  |        | [solution](<../_177. Nth Highest Salary.md>)                            | sql         | May 22, 2024    |
 |  181 | [Employees Earning More Than Their Managers](<https://leetcode.com/problems/employees-earning-more-than-their-managers>)       | Easy    |        | [solution](<../_181. Employees Earning More Than Their Managers.md>)    | sql         | May 22, 2024    |
 |  182 | [Duplicate Emails](<https://leetcode.com/problems/duplicate-emails>)                                                           | Easy    |        | [solution](<../_182. Duplicate Emails.md>)                              | sql         | May 22, 2024    |
 |  183 | [Customers Who Never Order](<https://leetcode.com/problems/customers-who-never-order>)                                         | Easy    |        | [solution](<../_183. Customers Who Never Order.md>)                     | sql         | May 22, 2024    |
-|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                         | Easy    |        | [solution](<../_184. Department Highest Salary.md>)                     | sql         | Jun 07, 2024    |
+|  184 | [Department Highest Salary](<https://leetcode.com/problems/department-highest-salary>)                                         | Medium  |        | [solution](<../_184. Department Highest Salary.md>)                     | sql         | Jun 07, 2024    |
 |  196 | [Delete Duplicate Emails](<https://leetcode.com/problems/delete-duplicate-emails>)                                             | Easy    |        | [solution](<../_196. Delete Duplicate Emails.md>)                       | py, sql     | Jun 07, 2024    |
 |  197 | [Rising Temperature](<https://leetcode.com/problems/rising-temperature>)                                                       | Easy    |        | [solution](<../_197. Rising Temperature.md>)                            | sql         | May 22, 2024    |
 |  577 | [Employee Bonus](<https://leetcode.com/problems/employee-bonus>)                                                               | Easy    |        | [solution](<../_577. Employee Bonus.md>)                                | sql         | May 22, 2024    |
@@ -23,4 +23,4 @@
 |  607 | [Sales Person](<https://leetcode.com/problems/sales-person>)                                                                   | Easy    |        | [solution](<../_607. Sales Person.md>)                                  | sql         | May 22, 2024    |
 |  619 | [Biggest Single Number](<https://leetcode.com/problems/biggest-single-number>)                                                 | Easy    |        | [solution](<../_619. Biggest Single Number.md>)                         | sql         | May 22, 2024    |
 | 1068 | [Product Sales Analysis I](<https://leetcode.com/problems/product-sales-analysis-i>)                                           | Easy    |        | [solution](<../_1068. Product Sales Analysis I.md>)                     | sql         | May 22, 2024    |
-| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                         | Easy    |        | [solution](<../_1783. Grand Slam Titles.md>)                            | sql         | Jun 07, 2024    |
\ No newline at end of file
+| 1783 | [Grand Slam Titles](<https://leetcode.com/problems/grand-slam-titles>)                                                         | Medium  |        | [solution](<../_1783. Grand Slam Titles.md>)                            | sql         | Jun 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Depth-First Search.md b/markdowns/by_topic/Depth-First Search.md
index 96c6a991..1126dc70 100644
--- a/markdowns/by_topic/Depth-First Search.md	
+++ b/markdowns/by_topic/Depth-First Search.md	
@@ -7,76 +7,76 @@
 |    # | Title                                                                                                                                                    | Level   | Cats           | Solution                                                                              | Languages   | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:--------------------------------------------------------------------------------------|:------------|:----------------|
 |   94 | [Binary Tree Inorder Traversal](<https://leetcode.com/problems/binary-tree-inorder-traversal>)                                                           | Easy    |                | [solution](<../_94. Binary Tree Inorder Traversal.md>)                                | java, py    | Jun 29, 2024    |
-|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                               | Easy    | B75, N150      | [solution](<../_98. Validate Binary Search Tree.md>)                                  | c           | Jun 23, 2024    |
+|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                               | Medium  | B75, N150      | [solution](<../_98. Validate Binary Search Tree.md>)                                  | c           | Jun 23, 2024    |
 |  100 | [Same Tree](<https://leetcode.com/problems/same-tree>)                                                                                                   | Easy    | B75, N150      | [solution](<../_100. Same Tree.md>)                                                   | py          | Jul 03, 2024    |
 |  104 | [Maximum Depth of Binary Tree](<https://leetcode.com/problems/maximum-depth-of-binary-tree>)                                                             | Easy    | B75, N150      | [solution](<../_104. Maximum Depth of Binary Tree.md>)                                | py          | Jul 04, 2024    |
 |  110 | [Balanced Binary Tree](<https://leetcode.com/problems/balanced-binary-tree>)                                                                             | Easy    | N150           | [solution](<../_110. Balanced Binary Tree.md>)                                        | py          | Jul 04, 2024    |
 |  111 | [Minimum Depth of Binary Tree](<https://leetcode.com/problems/minimum-depth-of-binary-tree>)                                                             | Easy    |                | [solution](<../_111. Minimum Depth of Binary Tree.md>)                                | c, java     | Jun 07, 2024    |
 |  112 | [Path Sum](<https://leetcode.com/problems/path-sum>)                                                                                                     | Easy    |                | [solution](<../_112. Path Sum.md>)                                                    | py          | Jul 03, 2024    |
-|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                               | Easy    |                | [solution](<../_113. Path Sum II.md>)                                                 | py          | Jul 03, 2024    |
-|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                 | Easy    |                | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                          | c, py       | Jun 11, 2024    |
+|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                               | Medium  |                | [solution](<../_113. Path Sum II.md>)                                                 | py          | Jul 03, 2024    |
+|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                 | Medium  |                | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                          | c, py       | Jun 11, 2024    |
 |  124 | [Binary Tree Maximum Path Sum](<https://leetcode.com/problems/binary-tree-maximum-path-sum>)                                                             | Hard    | B75, N150      | [solution](<../_124. Binary Tree Maximum Path Sum.md>)                                | py          | Jul 04, 2024    |
-|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                     | Easy    |                | [solution](<../_129. Sum Root to Leaf Numbers.md>)                                    | py          | Jun 07, 2024    |
-|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                               | Easy    | N150           | [solution](<../_199. Binary Tree Right Side View.md>)                                 | cpp, java   | Jul 04, 2024    |
-|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                   | Easy    | B75, N150      | [solution](<../_200. Number of Islands.md>)                                           | py          | Jun 17, 2024    |
-|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                 | Easy    | B75, N150      | [solution](<../_211. Design Add and Search Words Data Structure.md>)                  | py          | Jun 27, 2024    |
+|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                     | Medium  |                | [solution](<../_129. Sum Root to Leaf Numbers.md>)                                    | py          | Jun 07, 2024    |
+|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                               | Medium  | N150           | [solution](<../_199. Binary Tree Right Side View.md>)                                 | cpp, java   | Jul 04, 2024    |
+|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                   | Medium  | B75, N150      | [solution](<../_200. Number of Islands.md>)                                           | py          | Jun 17, 2024    |
+|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                 | Medium  | B75, N150      | [solution](<../_211. Design Add and Search Words Data Structure.md>)                  | py          | Jun 27, 2024    |
 |  226 | [Invert Binary Tree](<https://leetcode.com/problems/invert-binary-tree>)                                                                                 | Easy    | B75, N150      | [solution](<../_226. Invert Binary Tree.md>)                                          | py          | Jul 03, 2024    |
-|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                           | Easy    | B75, N150      | [solution](<../_230. Kth Smallest Element in a BST.md>)                               | py          | Jun 29, 2024    |
-|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                         | Easy    | B75, N150      | [solution](<../_235. Lowest Common Ancestor of a Binary Search Tree.md>)              | py          | Jul 04, 2024    |
-|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                       | Easy    | B75            | [solution](<../_236. Lowest Common Ancestor of a Binary Tree.md>)                     | py          | Jul 15, 2024    |
+|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                           | Medium  | B75, N150      | [solution](<../_230. Kth Smallest Element in a BST.md>)                               | py          | Jun 29, 2024    |
+|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                         | Medium  | B75, N150      | [solution](<../_235. Lowest Common Ancestor of a Binary Search Tree.md>)              | py          | Jul 04, 2024    |
+|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                       | Medium  | B75            | [solution](<../_236. Lowest Common Ancestor of a Binary Tree.md>)                     | py          | Jul 15, 2024    |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                               | Hard    |                | [solution](<../_272. Closest Binary Search Tree Value II.md>)                         | py          | Jul 01, 2024    |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                             | Easy    |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                        | py          | Jun 12, 2024    |
-|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                         | Easy    |                | [solution](<../_339. Nested List Weight Sum.md>)                                      | c, py       | Jul 02, 2024    |
-|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                             | Easy    |                | [solution](<../_341. Flatten Nested List Iterator.md>)                                | java        | Jul 02, 2024    |
-|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                   | Easy    |                | [solution](<../_364. Nested List Weight Sum II.md>)                                   | java, py    | Jul 02, 2024    |
-|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                 | Easy    |                | [solution](<../_366. Find Leaves of Binary Tree.md>)                                  | py          | Jun 12, 2024    |
-|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                         | Easy    |                | [solution](<../_419. Battleships in a Board.md>)                                      | c, py       | Jun 24, 2024    |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)       | Easy    |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)     | py          | Jun 12, 2024    |
-|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                       | Easy    |                | [solution](<../_430. Flatten a Multilevel Doubly Linked List.md>)                     | cpp, java   | Jun 27, 2024    |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                             | Medium  |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                        | py          | Jun 12, 2024    |
+|  339 | [Nested List Weight Sum](<https://leetcode.com/problems/nested-list-weight-sum>)                                                                         | Medium  |                | [solution](<../_339. Nested List Weight Sum.md>)                                      | c, py       | Jul 02, 2024    |
+|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                             | Medium  |                | [solution](<../_341. Flatten Nested List Iterator.md>)                                | java        | Jul 02, 2024    |
+|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                                   | Medium  |                | [solution](<../_364. Nested List Weight Sum II.md>)                                   | java, py    | Jul 02, 2024    |
+|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                 | Medium  |                | [solution](<../_366. Find Leaves of Binary Tree.md>)                                  | py          | Jun 12, 2024    |
+|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                         | Medium  |                | [solution](<../_419. Battleships in a Board.md>)                                      | c, py       | Jun 24, 2024    |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)       | Medium  |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)     | py          | Jun 12, 2024    |
+|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                       | Medium  |                | [solution](<../_430. Flatten a Multilevel Doubly Linked List.md>)                     | cpp, java   | Jun 27, 2024    |
 |  431 | [Encode N-ary Tree to Binary Tree](<https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree>)                                                     | Hard    |                | [solution](<../_431. Encode N-ary Tree to Binary Tree.md>)                            | java, py    | Jun 28, 2024    |
-|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                             | Easy    |                | [solution](<../_437. Path Sum III.md>)                                                | py          | Jul 03, 2024    |
-|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                               | Easy    |                | [solution](<../_513. Find Bottom Left Tree Value.md>)                                 | java        | Jul 03, 2024    |
+|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                             | Medium  |                | [solution](<../_437. Path Sum III.md>)                                                | py          | Jul 03, 2024    |
+|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                               | Medium  |                | [solution](<../_513. Find Bottom Left Tree Value.md>)                                 | java        | Jul 03, 2024    |
 |  543 | [Diameter of Binary Tree](<https://leetcode.com/problems/diameter-of-binary-tree>)                                                                       | Easy    | N150           | [solution](<../_543. Diameter of Binary Tree.md>)                                     | c, java, py | Jun 03, 2024    |
-|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                           | Easy    |                | [solution](<../_565. Array Nesting.md>)                                               | py          | Jul 02, 2024    |
+|  565 | [Array Nesting](<https://leetcode.com/problems/array-nesting>)                                                                                           | Medium  |                | [solution](<../_565. Array Nesting.md>)                                               | py          | Jul 02, 2024    |
 |  572 | [Subtree of Another Tree](<https://leetcode.com/problems/subtree-of-another-tree>)                                                                       | Easy    | B75, N150      | [solution](<../_572. Subtree of Another Tree.md>)                                     | py          | Jun 03, 2024    |
 |  637 | [Average of Levels in Binary Tree](<https://leetcode.com/problems/average-of-levels-in-binary-tree>)                                                     | Easy    |                | [solution](<../_637. Average of Levels in Binary Tree.md>)                            | py          | Jul 04, 2024    |
-|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                             | Easy    | Daily          | [solution](<../_663. Equal Tree Partition.md>)                                        | py          | Jun 17, 2024    |
-|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                               | Easy    |                | [solution](<../_666. Path Sum IV.md>)                                                 | py          | Jul 03, 2024    |
-|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                 | Easy    |                | [solution](<../_676. Implement Magic Dictionary.md>)                                  | py          | Jun 27, 2024    |
-|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                           | Easy    |                | [solution](<../_687. Longest Univalue Path.md>)                                       | py          | Jul 03, 2024    |
-|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                               | Easy    |                | [solution](<../_690. Employee Importance.md>)                                         | java        | Jul 02, 2024    |
-|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                 | Easy    | N150           | [solution](<../_695. Max Area of Island.md>)                                          | c           | Jun 24, 2024    |
-|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                               | Easy    |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                         | py          | Jun 26, 2024    |
+|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                             | Medium  | Daily          | [solution](<../_663. Equal Tree Partition.md>)                                        | py          | Jun 17, 2024    |
+|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                               | Medium  |                | [solution](<../_666. Path Sum IV.md>)                                                 | py          | Jul 03, 2024    |
+|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                 | Medium  |                | [solution](<../_676. Implement Magic Dictionary.md>)                                  | py          | Jun 27, 2024    |
+|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                           | Medium  |                | [solution](<../_687. Longest Univalue Path.md>)                                       | py          | Jul 03, 2024    |
+|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                               | Medium  |                | [solution](<../_690. Employee Importance.md>)                                         | java        | Jul 02, 2024    |
+|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                 | Medium  | N150           | [solution](<../_695. Max Area of Island.md>)                                          | c           | Jun 24, 2024    |
+|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                               | Medium  |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                         | py          | Jun 26, 2024    |
 |  987 | [Vertical Order Traversal of a Binary Tree](<https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree>)                                   | Hard    |                | [solution](<../_987. Vertical Order Traversal of a Binary Tree.md>)                   | py          | Jun 12, 2024    |
 |  993 | [Cousins in Binary Tree](<https://leetcode.com/problems/cousins-in-binary-tree>)                                                                         | Easy    |                | [solution](<../_993. Cousins in Binary Tree.md>)                                      | py          | Jul 04, 2024    |
-| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                 | Easy    |                | [solution](<../_1020. Number of Enclaves.md>)                                         | py          | Jun 26, 2024    |
-| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                             | Easy    |                | [solution](<../_1026. Maximum Difference Between Node and Ancestor.md>)               | py          | Jun 23, 2024    |
+| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                 | Medium  |                | [solution](<../_1020. Number of Enclaves.md>)                                         | py          | Jun 26, 2024    |
+| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                             | Medium  |                | [solution](<../_1026. Maximum Difference Between Node and Ancestor.md>)               | py          | Jun 23, 2024    |
 | 1028 | [Recover a Tree From Preorder Traversal](<https://leetcode.com/problems/recover-a-tree-from-preorder-traversal>)                                         | Hard    |                | [solution](<../_1028. Recover a Tree From Preorder Traversal.md>)                     | py          | Jul 01, 2024    |
-| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                         | Easy    | Daily          | [solution](<../_1038. Binary Search Tree to Greater Sum Tree.md>)                     | c           | Jun 26, 2024    |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                         | Easy    | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                             | py          | Jul 17, 2024    |
-| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                 | Easy    |                | [solution](<../_1161. Maximum Level Sum of a Binary Tree.md>)                         | py          | Jul 17, 2024    |
-| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                         | Easy    |                | [solution](<../_1233. Remove Sub-Folders from the Filesystem.md>)                     | py          | Jun 28, 2024    |
-| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                     | Easy    |                | [solution](<../_1254. Number of Closed Islands.md>)                                   | py          | Jun 26, 2024    |
-| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                 | Easy    |                | [solution](<../_1302. Deepest Leaves Sum.md>)                                         | c, js, py   | Jun 07, 2024    |
-| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                       | Easy    |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                    | java        | Jun 24, 2024    |
-| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                   | Easy    |                | [solution](<../_1315. Sum of Nodes with Even-Valued Grandparent.md>)                  | py          | Jun 12, 2024    |
-| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                             | Easy    |                | [solution](<../_1372. Longest ZigZag Path in a Binary Tree.md>)                       | py          | Jul 05, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                             | Easy    | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                               | py          | Jun 29, 2024    |
-| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                       | Easy    | N150           | [solution](<../_1448. Count Good Nodes in Binary Tree.md>)                            | java        | Jul 04, 2024    |
-| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                   | Easy    |                | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                  | py          | Jul 05, 2024    |
-| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                     | Easy    |                | [solution](<../_1490. Clone N-ary Tree.md>)                                           | java, py    | Jun 02, 2024    |
-| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                         | Easy    |                | [solution](<../_1522. Diameter of N-Ary Tree.md>)                                     | py          | Jul 03, 2024    |
-| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                       | Easy    | Daily          | [solution](<../_1530. Number of Good Leaf Nodes Pairs.md>)                            | py          | Jul 18, 2024    |
-| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                           | Easy    |                | [solution](<../_1660. Correct a Binary Tree.md>)                                      | py          | Jun 27, 2024    |
-| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                 | Easy    |                | [solution](<../_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                 | py          | Jun 29, 2024    |
-| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                         | Easy    | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                             | py          | Jul 15, 2024    |
-| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                         | Easy    |                | [solution](<../_1858. Longest Word With All Prefixes.md>)                             | py          | Jun 29, 2024    |
-| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                   | Easy    |                | [solution](<../_1905. Count Sub Islands.md>)                                          | py          | Jun 24, 2024    |
-| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                       | Easy    |                | [solution](<../_1973. Count Nodes Equal to Sum of Descendants.md>)                    | c           | Jun 23, 2024    |
-| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                               | Easy    |                | [solution](<../_1992. Find All Groups of Farmland.md>)                                | java, py    | Jun 24, 2024    |
-| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>) | Easy    | Daily          | [solution](<../_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>) | py          | Jul 16, 2024    |
-| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)               | Easy    | Daily          | [solution](<../_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)        | java, py    | Jun 29, 2024    |
-| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                       | Easy    |                | [solution](<../_2265. Count Nodes Equal to Average of Subtree.md>)                    | js, py      | Jun 07, 2024    |
-| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                           | Easy    |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)              | py          | Jun 26, 2024    |
-| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                   | Easy    |                | [solution](<../_2415. Reverse Odd Levels of Binary Tree.md>)                          | py          | Jun 23, 2024    |
-| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                       | Easy    |                | [solution](<../_3157. Find the Level of Tree with Minimum Sum.md>)                    | py          | Jul 05, 2024    |
\ No newline at end of file
+| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                         | Medium  | Daily          | [solution](<../_1038. Binary Search Tree to Greater Sum Tree.md>)                     | c           | Jun 26, 2024    |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                         | Medium  | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                             | py          | Jul 17, 2024    |
+| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                 | Medium  |                | [solution](<../_1161. Maximum Level Sum of a Binary Tree.md>)                         | py          | Jul 17, 2024    |
+| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                         | Medium  |                | [solution](<../_1233. Remove Sub-Folders from the Filesystem.md>)                     | py          | Jun 28, 2024    |
+| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                     | Medium  |                | [solution](<../_1254. Number of Closed Islands.md>)                                   | py          | Jun 26, 2024    |
+| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                 | Medium  |                | [solution](<../_1302. Deepest Leaves Sum.md>)                                         | c, js, py   | Jun 07, 2024    |
+| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                       | Medium  |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                    | java        | Jun 24, 2024    |
+| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                   | Medium  |                | [solution](<../_1315. Sum of Nodes with Even-Valued Grandparent.md>)                  | py          | Jun 12, 2024    |
+| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                             | Medium  |                | [solution](<../_1372. Longest ZigZag Path in a Binary Tree.md>)                       | py          | Jul 05, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                             | Medium  | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                               | py          | Jun 29, 2024    |
+| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                       | Medium  | N150           | [solution](<../_1448. Count Good Nodes in Binary Tree.md>)                            | java        | Jul 04, 2024    |
+| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                   | Medium  |                | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                  | py          | Jul 05, 2024    |
+| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                     | Medium  |                | [solution](<../_1490. Clone N-ary Tree.md>)                                           | java, py    | Jun 02, 2024    |
+| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                         | Medium  |                | [solution](<../_1522. Diameter of N-Ary Tree.md>)                                     | py          | Jul 03, 2024    |
+| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                       | Medium  | Daily          | [solution](<../_1530. Number of Good Leaf Nodes Pairs.md>)                            | py          | Jul 18, 2024    |
+| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                           | Medium  |                | [solution](<../_1660. Correct a Binary Tree.md>)                                      | py          | Jun 27, 2024    |
+| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                 | Medium  |                | [solution](<../_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                 | py          | Jun 29, 2024    |
+| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                         | Medium  | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                             | py          | Jul 15, 2024    |
+| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                                                         | Medium  |                | [solution](<../_1858. Longest Word With All Prefixes.md>)                             | py          | Jun 29, 2024    |
+| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                   | Medium  |                | [solution](<../_1905. Count Sub Islands.md>)                                          | py          | Jun 24, 2024    |
+| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                       | Medium  |                | [solution](<../_1973. Count Nodes Equal to Sum of Descendants.md>)                    | c           | Jun 23, 2024    |
+| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                               | Medium  |                | [solution](<../_1992. Find All Groups of Farmland.md>)                                | java, py    | Jun 24, 2024    |
+| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>) | Medium  | Daily          | [solution](<../_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>) | py          | Jul 16, 2024    |
+| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)               | Medium  | Daily          | [solution](<../_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)        | java, py    | Jun 29, 2024    |
+| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                       | Medium  |                | [solution](<../_2265. Count Nodes Equal to Average of Subtree.md>)                    | js, py      | Jun 07, 2024    |
+| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                           | Medium  |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)              | py          | Jun 26, 2024    |
+| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                   | Medium  |                | [solution](<../_2415. Reverse Odd Levels of Binary Tree.md>)                          | py          | Jun 23, 2024    |
+| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                       | Medium  |                | [solution](<../_3157. Find the Level of Tree with Minimum Sum.md>)                    | py          | Jul 05, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Design.md b/markdowns/by_topic/Design.md
index 64c3b1c2..edfb9e5d 100644
--- a/markdowns/by_topic/Design.md
+++ b/markdowns/by_topic/Design.md
@@ -6,29 +6,29 @@
 
 |    # | Title                                                                                                                              | Level   | Cats      | Solution                                                                    | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:----------------------------------------------------------------------------|:------------|:----------------|
-|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                             | Easy    | N150      | [solution](<../_155. Min Stack.md>)                                         | py          | Jun 16, 2024    |
-|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                         | Easy    |           | [solution](<../_173. Binary Search Tree Iterator.md>)                       | py          | Jun 26, 2024    |
-|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                         | Easy    | B75, N150 | [solution](<../_208. Implement Trie (Prefix Tree).md>)                      | py          | Jun 27, 2024    |
-|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)           | Easy    | B75, N150 | [solution](<../_211. Design Add and Search Words Data Structure.md>)        | py          | Jun 27, 2024    |
-|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                             | Easy    |           | [solution](<../_251. Flatten 2D Vector.md>)                                 | py          | May 22, 2024    |
-|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                             | Easy    | B75, N150 | [solution](<../_271. Encode and Decode Strings.md>)                         | py          | Jun 13, 2024    |
-|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                       | Easy    |           | [solution](<../_341. Flatten Nested List Iterator.md>)                      | java        | Jul 02, 2024    |
-|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                           | Easy    |           | [solution](<../_348. Design Tic-Tac-Toe.md>)                                | py          | Jul 05, 2024    |
-|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                             | Easy    |           | [solution](<../_353. Design Snake Game.md>)                                 | py          | Jun 28, 2024    |
-|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                         | Easy    |           | [solution](<../_380. Insert Delete GetRandom O(1).md>)                      | java        | Jul 06, 2024    |
+|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                             | Medium  | N150      | [solution](<../_155. Min Stack.md>)                                         | py          | Jun 16, 2024    |
+|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                         | Medium  |           | [solution](<../_173. Binary Search Tree Iterator.md>)                       | py          | Jun 26, 2024    |
+|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                         | Medium  | B75, N150 | [solution](<../_208. Implement Trie (Prefix Tree).md>)                      | py          | Jun 27, 2024    |
+|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)           | Medium  | B75, N150 | [solution](<../_211. Design Add and Search Words Data Structure.md>)        | py          | Jun 27, 2024    |
+|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                             | Medium  |           | [solution](<../_251. Flatten 2D Vector.md>)                                 | py          | May 22, 2024    |
+|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                             | Medium  | B75, N150 | [solution](<../_271. Encode and Decode Strings.md>)                         | py          | Jun 13, 2024    |
+|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                       | Medium  |           | [solution](<../_341. Flatten Nested List Iterator.md>)                      | java        | Jul 02, 2024    |
+|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                           | Medium  |           | [solution](<../_348. Design Tic-Tac-Toe.md>)                                | py          | Jul 05, 2024    |
+|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                             | Medium  |           | [solution](<../_353. Design Snake Game.md>)                                 | py          | Jun 28, 2024    |
+|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                         | Medium  |           | [solution](<../_380. Insert Delete GetRandom O(1).md>)                      | java        | Jul 06, 2024    |
 |  381 | [Insert Delete GetRandom O(1) - Duplicates allowed](<https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed>) | Hard    |           | [solution](<../_381. Insert Delete GetRandom O(1) - Duplicates allowed.md>) | java        | Jul 06, 2024    |
 |  431 | [Encode N-ary Tree to Binary Tree](<https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree>)                               | Hard    |           | [solution](<../_431. Encode N-ary Tree to Binary Tree.md>)                  | java, py    | Jun 28, 2024    |
-|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                             | Easy    |           | [solution](<../_535. Encode and Decode TinyURL.md>)                         | py          | Jun 07, 2024    |
-|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                     | Easy    |           | [solution](<../_622. Design Circular Queue.md>)                             | py          | Jul 06, 2024    |
-|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                           | Easy    |           | [solution](<../_676. Implement Magic Dictionary.md>)                        | py          | Jun 27, 2024    |
+|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                             | Medium  |           | [solution](<../_535. Encode and Decode TinyURL.md>)                         | py          | Jun 07, 2024    |
+|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                     | Medium  |           | [solution](<../_622. Design Circular Queue.md>)                             | py          | Jul 06, 2024    |
+|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                           | Medium  |           | [solution](<../_676. Implement Magic Dictionary.md>)                        | py          | Jun 27, 2024    |
 |  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                 | Easy    | N150      | [solution](<../_703. Kth Largest Element in a Stream.md>)                   | py          | Jul 05, 2024    |
-|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                           | Easy    |           | [solution](<../_707. Design Linked List.md>)                                | java        | Jun 22, 2024    |
+|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                           | Medium  |           | [solution](<../_707. Design Linked List.md>)                                | java        | Jun 22, 2024    |
 |  895 | [Maximum Frequency Stack](<https://leetcode.com/problems/maximum-frequency-stack>)                                                 | Hard    |           | [solution](<../_895. Maximum Frequency Stack.md>)                           | java, py    | Jul 11, 2024    |
-|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                     | Easy    |           | [solution](<../_919. Complete Binary Tree Inserter.md>)                     | py          | Jul 05, 2024    |
-| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                           | Easy    |           | [solution](<../_1166. Design File System.md>)                               | py          | Jun 28, 2024    |
-| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                 | Easy    |           | [solution](<../_1381. Design a Stack With Increment Operation.md>)          | py          | Jul 06, 2024    |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                   | Easy    |           | [solution](<../_1472. Design Browser History.md>)                           | py          | Jul 06, 2024    |
-| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                             | Easy    |           | [solution](<../_1570. Dot Product of Two Sparse Vectors.md>)                | c, java, py | Jun 06, 2024    |
-| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                   | Easy    |           | [solution](<../_1804. Implement Trie II (Prefix Tree).md>)                  | py          | Jun 27, 2024    |
-| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                   | Easy    | N150      | [solution](<../_2013. Detect Squares.md>)                                   | py          | Jun 28, 2024    |
-| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                             | Easy    |           | [solution](<../_2671. Frequency Tracker.md>)                                | py          | Jun 28, 2024    |
\ No newline at end of file
+|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                     | Medium  |           | [solution](<../_919. Complete Binary Tree Inserter.md>)                     | py          | Jul 05, 2024    |
+| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                           | Medium  |           | [solution](<../_1166. Design File System.md>)                               | py          | Jun 28, 2024    |
+| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                 | Medium  |           | [solution](<../_1381. Design a Stack With Increment Operation.md>)          | py          | Jul 06, 2024    |
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                   | Medium  |           | [solution](<../_1472. Design Browser History.md>)                           | py          | Jul 06, 2024    |
+| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                             | Medium  |           | [solution](<../_1570. Dot Product of Two Sparse Vectors.md>)                | c, java, py | Jun 06, 2024    |
+| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                   | Medium  |           | [solution](<../_1804. Implement Trie II (Prefix Tree).md>)                  | py          | Jun 27, 2024    |
+| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                   | Medium  | N150      | [solution](<../_2013. Detect Squares.md>)                                   | py          | Jun 28, 2024    |
+| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                             | Medium  |           | [solution](<../_2671. Frequency Tracker.md>)                                | py          | Jun 28, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Divide and Conquer.md b/markdowns/by_topic/Divide and Conquer.md
index 6d9da55f..521a92d2 100644
--- a/markdowns/by_topic/Divide and Conquer.md	
+++ b/markdowns/by_topic/Divide and Conquer.md	
@@ -8,7 +8,7 @@
 |-----:|:---------------------------------------------------------------------------------------------|:--------|:----------|:--------------------------------------------------------|:------------|:----------------|
 |   23 | [Merge k Sorted Lists](<https://leetcode.com/problems/merge-k-sorted-lists>)                 | Hard    | B75, N150 | [solution](<../_23. Merge k Sorted Lists.md>)           | py          | Jun 17, 2024    |
 |  191 | [Number of 1 Bits](<https://leetcode.com/problems/number-of-1-bits>)                         | Easy    | B75, N150 | [solution](<../_191. Number of 1 Bits.md>)              | py          | Jul 03, 2024    |
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)           | Easy    | B75, N150 | [solution](<../_347. Top K Frequent Elements.md>)       | py          | Jun 13, 2024    |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                   | Easy    |           | [solution](<../_654. Maximum Binary Tree.md>)           | py          | Jun 12, 2024    |
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)     | Easy    | N150      | [solution](<../_973. K Closest Points to Origin.md>)    | py          | Jun 29, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>) | Easy    | Daily     | [solution](<../_1382. Balance a Binary Search Tree.md>) | py          | Jun 29, 2024    |
\ No newline at end of file
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)           | Medium  | B75, N150 | [solution](<../_347. Top K Frequent Elements.md>)       | py          | Jun 13, 2024    |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                   | Medium  |           | [solution](<../_654. Maximum Binary Tree.md>)           | py          | Jun 12, 2024    |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)     | Medium  | N150      | [solution](<../_973. K Closest Points to Origin.md>)    | py          | Jun 29, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>) | Medium  | Daily     | [solution](<../_1382. Balance a Binary Search Tree.md>) | py          | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Doubly-Linked List.md b/markdowns/by_topic/Doubly-Linked List.md
index 74df24db..9ff34835 100644
--- a/markdowns/by_topic/Doubly-Linked List.md	
+++ b/markdowns/by_topic/Doubly-Linked List.md	
@@ -6,6 +6,6 @@
 
 |    # | Title                                                                                                                                              | Level   | Cats   | Solution                                                                          | Languages   | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:----------------------------------------------------------------------------------|:------------|:----------------|
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>) | Easy    |        | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>) | py          | Jun 12, 2024    |
-|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                 | Easy    |        | [solution](<../_430. Flatten a Multilevel Doubly Linked List.md>)                 | cpp, java   | Jun 27, 2024    |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                   | Easy    |        | [solution](<../_1472. Design Browser History.md>)                                 | py          | Jul 06, 2024    |
\ No newline at end of file
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>) | Medium  |        | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>) | py          | Jun 12, 2024    |
+|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                 | Medium  |        | [solution](<../_430. Flatten a Multilevel Doubly Linked List.md>)                 | cpp, java   | Jun 27, 2024    |
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                   | Medium  |        | [solution](<../_1472. Design Browser History.md>)                                 | py          | Jul 06, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Dynamic Programming.md b/markdowns/by_topic/Dynamic Programming.md
index cb3cf76d..c530f44e 100644
--- a/markdowns/by_topic/Dynamic Programming.md	
+++ b/markdowns/by_topic/Dynamic Programming.md	
@@ -6,30 +6,30 @@
 
 |    # | Title                                                                                                                                                                | Level   | Cats      | Solution                                                                                    | Languages                | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:--------------------------------------------------------------------------------------------|:-------------------------|:----------------|
-|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                       | Easy    | B75, N150 | [solution](<../_5. Longest Palindromic Substring.md>)                                       | py                       | Jul 05, 2024    |
-|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                         | Easy    | N150      | [solution](<../_22. Generate Parentheses.md>)                                               | py                       | Jun 13, 2024    |
+|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                       | Medium  | B75, N150 | [solution](<../_5. Longest Palindromic Substring.md>)                                       | py                       | Jul 05, 2024    |
+|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                         | Medium  | N150      | [solution](<../_22. Generate Parentheses.md>)                                               | py                       | Jun 13, 2024    |
 |   70 | [Climbing Stairs](<https://leetcode.com/problems/climbing-stairs>)                                                                                                   | Easy    | B75, N150 | [solution](<../_70. Climbing Stairs.md>)                                                    | py                       | May 22, 2024    |
 |  118 | [Pascal's Triangle](<https://leetcode.com/problems/pascals-triangle>)                                                                                                | Easy    |           | [solution](<../_118. Pascal's Triangle.md>)                                                 | py                       | May 22, 2024    |
 |  121 | [Best Time to Buy and Sell Stock](<https://leetcode.com/problems/best-time-to-buy-and-sell-stock>)                                                                   | Easy    | B75, N150 | [solution](<../_121. Best Time to Buy and Sell Stock.md>)                                   | py                       | Jul 03, 2024    |
 |  124 | [Binary Tree Maximum Path Sum](<https://leetcode.com/problems/binary-tree-maximum-path-sum>)                                                                         | Hard    | B75, N150 | [solution](<../_124. Binary Tree Maximum Path Sum.md>)                                      | py                       | Jul 04, 2024    |
-|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                         | Easy    | B75, N150 | [solution](<../_198. House Robber.md>)                                                      | py                       | Jul 17, 2024    |
+|  198 | [House Robber](<https://leetcode.com/problems/house-robber>)                                                                                                         | Medium  | B75, N150 | [solution](<../_198. House Robber.md>)                                                      | py                       | Jul 17, 2024    |
 |  392 | [Is Subsequence](<https://leetcode.com/problems/is-subsequence>)                                                                                                     | Easy    |           | [solution](<../_392. Is Subsequence.md>)                                                    | java                     | Jun 22, 2024    |
 |  509 | [Fibonacci Number](<https://leetcode.com/problems/fibonacci-number>)                                                                                                 | Easy    |           | [solution](<../_509. Fibonacci Number.md>)                                                  | c                        | Jun 17, 2024    |
-|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                               | Easy    |           | [solution](<../_542. 01 Matrix.md>)                                                         | py                       | Jun 26, 2024    |
-|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                     | Easy    | B75, N150 | [solution](<../_647. Palindromic Substrings.md>)                                            | py                       | Jul 05, 2024    |
-|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                   | Easy    |           | [solution](<../_651. 4 Keys Keyboard.md>)                                                   | py                       | May 29, 2024    |
+|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                               | Medium  |           | [solution](<../_542. 01 Matrix.md>)                                                         | py                       | Jun 26, 2024    |
+|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                     | Medium  | B75, N150 | [solution](<../_647. Palindromic Substrings.md>)                                            | py                       | Jul 05, 2024    |
+|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                   | Medium  |           | [solution](<../_651. 4 Keys Keyboard.md>)                                                   | py                       | May 29, 2024    |
 |  746 | [Min Cost Climbing Stairs](<https://leetcode.com/problems/min-cost-climbing-stairs>)                                                                                 | Easy    | N150      | [solution](<../_746. Min Cost Climbing Stairs.md>)                                          | py                       | Jul 05, 2024    |
-|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                             | Easy    |           | [solution](<../_877. Stone Game.md>)                                                        | c, cpp, go, java, js, py | Jul 11, 2024    |
-| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                             | Easy    |           | [solution](<../_1218. Longest Arithmetic Subsequence of Given Difference.md>)               | py                       | May 31, 2024    |
+|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                             | Medium  |           | [solution](<../_877. Stone Game.md>)                                                        | c, cpp, go, java, js, py | Jul 11, 2024    |
+| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                             | Medium  |           | [solution](<../_1218. Longest Arithmetic Subsequence of Given Difference.md>)               | py                       | May 31, 2024    |
 | 1255 | [Maximum Score Words Formed by Letters](<https://leetcode.com/problems/maximum-score-words-formed-by-letters>)                                                       | Hard    |           | [solution](<../_1255. Maximum Score Words Formed by Letters.md>)                            | py                       | Jun 15, 2024    |
-| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                         | Easy    |           | [solution](<../_1372. Longest ZigZag Path in a Binary Tree.md>)                             | py                       | Jul 05, 2024    |
-| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                       | Easy    |           | [solution](<../_1525. Number of Good Ways to Split a String.md>)                            | py                       | Jun 01, 2024    |
-| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                             | Easy    |           | [solution](<../_1641. Count Sorted Vowel Strings.md>)                                       | c, cpp, java             | Jun 24, 2024    |
-| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                         | Easy    |           | [solution](<../_1696. Jump Game VI.md>)                                                     | java, py                 | Jul 03, 2024    |
-| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                               | Easy    |           | [solution](<../_1884. Egg Drop With 2 Eggs and N Floors.md>)                                | c, java, js              | Jul 11, 2024    |
-| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                           | Easy    |           | [solution](<../_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)              | java                     | Jul 01, 2024    |
-| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                         | Easy    | Contest   | [solution](<../_3180. Maximum Total Reward Using Operations I.md>)                          | c, py                    | Jul 07, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                         | Easy    | Contest   | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                          | py                       | Jul 07, 2024    |
-| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>) | Easy    |           | [solution](<../_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>) | java                     | Jun 22, 2024    |
-| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)               | Easy    | Contest   | [solution](<../_3196. Maximize Total Cost of Alternating Subarrays.md>)                     | py                       | Jul 07, 2024    |
+| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                                         | Medium  |           | [solution](<../_1372. Longest ZigZag Path in a Binary Tree.md>)                             | py                       | Jul 05, 2024    |
+| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                       | Medium  |           | [solution](<../_1525. Number of Good Ways to Split a String.md>)                            | py                       | Jun 01, 2024    |
+| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                             | Medium  |           | [solution](<../_1641. Count Sorted Vowel Strings.md>)                                       | c, cpp, java             | Jun 24, 2024    |
+| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                         | Medium  |           | [solution](<../_1696. Jump Game VI.md>)                                                     | java, py                 | Jul 03, 2024    |
+| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                               | Medium  |           | [solution](<../_1884. Egg Drop With 2 Eggs and N Floors.md>)                                | c, java, js              | Jul 11, 2024    |
+| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                           | Medium  |           | [solution](<../_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)              | java                     | Jul 01, 2024    |
+| 3180 | Weekly Contest 401 - q3 - [Maximum Total Reward Using Operations I](<https://leetcode.com/problems/maximum-total-reward-using-operations-i>)                         | Medium  | Contest   | [solution](<../_3180. Maximum Total Reward Using Operations I.md>)                          | c, py                    | Jul 07, 2024    |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                         | Medium  | Contest   | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                          | py                       | Jul 07, 2024    |
+| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>) | Medium  |           | [solution](<../_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>) | java                     | Jun 22, 2024    |
+| 3196 | Weekly Contest 403 - q3 - [Maximize Total Cost of Alternating Subarrays](<https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays>)               | Medium  | Contest   | [solution](<../_3196. Maximize Total Cost of Alternating Subarrays.md>)                     | py                       | Jul 07, 2024    |
 | 3213 | Weekly Contest 405 - q4 - [Construct String with Minimum Cost](<https://leetcode.com/problems/construct-string-with-minimum-cost>)                                   | Hard    | Contest   | [solution](<../_3213. Construct String with Minimum Cost.md>)                               | py                       | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Game Theory.md b/markdowns/by_topic/Game Theory.md
index 05002879..f530b415 100644
--- a/markdowns/by_topic/Game Theory.md	
+++ b/markdowns/by_topic/Game Theory.md	
@@ -7,5 +7,5 @@
 |    # | Title                                                                                                      | Level   | Cats   | Solution                                                       | Languages                | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------|:--------|:-------|:---------------------------------------------------------------|:-------------------------|:----------------|
 |  292 | [Nim Game](<https://leetcode.com/problems/nim-game>)                                                       | Easy    |        | [solution](<../_292. Nim Game.md>)                             | py                       | May 23, 2024    |
-|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                   | Easy    |        | [solution](<../_877. Stone Game.md>)                           | c, cpp, go, java, js, py | Jul 11, 2024    |
-| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>) | Easy    |        | [solution](<../_1561. Maximum Number of Coins You Can Get.md>) | py                       | Jun 23, 2024    |
\ No newline at end of file
+|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                   | Medium  |        | [solution](<../_877. Stone Game.md>)                           | c, cpp, go, java, js, py | Jul 11, 2024    |
+| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>) | Medium  |        | [solution](<../_1561. Maximum Number of Coins You Can Get.md>) | py                       | Jun 23, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Geometry.md b/markdowns/by_topic/Geometry.md
index 069e8881..44ad206e 100644
--- a/markdowns/by_topic/Geometry.md
+++ b/markdowns/by_topic/Geometry.md
@@ -6,5 +6,5 @@
 
 |    # | Title                                                                                            | Level   | Cats   | Solution                                                  | Languages   | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------|:--------|:-------|:----------------------------------------------------------|:------------|:----------------|
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)         | Easy    | N150   | [solution](<../_973. K Closest Points to Origin.md>)      | py          | Jun 29, 2024    |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)         | Medium  | N150   | [solution](<../_973. K Closest Points to Origin.md>)      | py          | Jun 29, 2024    |
 | 1030 | [Matrix Cells in Distance Order](<https://leetcode.com/problems/matrix-cells-in-distance-order>) | Easy    |        | [solution](<../_1030. Matrix Cells in Distance Order.md>) | py          | Jun 04, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Graph.md b/markdowns/by_topic/Graph.md
index 9befcf88..051ace65 100644
--- a/markdowns/by_topic/Graph.md
+++ b/markdowns/by_topic/Graph.md
@@ -8,7 +8,7 @@
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:--------------------------------------------------------------------------------------|:-----------------|:----------------|
 | 1579 | [Remove Max Number of Edges to Keep Graph Fully Traversable](<https://leetcode.com/problems/remove-max-number-of-edges-to-keep-graph-fully-traversable>) | Hard    | Daily  | [solution](<../_1579. Remove Max Number of Edges to Keep Graph Fully Traversable.md>) | py               | Jun 30, 2024    |
 | 1791 | [Find Center of Star Graph](<https://leetcode.com/problems/find-center-of-star-graph>)                                                                   | Easy    | Daily  | [solution](<../_1791. Find Center of Star Graph.md>)                                  | c, cpp, java, py | Jun 27, 2024    |
-| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)               | Easy    | Daily  | [solution](<../_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)        | java, py         | Jun 29, 2024    |
-| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                   | Easy    | Daily  | [solution](<../_2285. Maximum Total Importance of Roads.md>)                          | c, cpp, java, py | Jun 28, 2024    |
-| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                             | Easy    |        | [solution](<../_2374. Node With Highest Edge Score.md>)                               | py               | Jun 18, 2024    |
-| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                 | Easy    |        | [solution](<../_2473. Minimum Cost to Buy Apples.md>)                                 | py               | Jun 29, 2024    |
\ No newline at end of file
+| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>)               | Medium  | Daily  | [solution](<../_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>)        | java, py         | Jun 29, 2024    |
+| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                   | Medium  | Daily  | [solution](<../_2285. Maximum Total Importance of Roads.md>)                          | c, cpp, java, py | Jun 28, 2024    |
+| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                             | Medium  |        | [solution](<../_2374. Node With Highest Edge Score.md>)                               | py               | Jun 18, 2024    |
+| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                 | Medium  |        | [solution](<../_2473. Minimum Cost to Buy Apples.md>)                                 | py               | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Greedy.md b/markdowns/by_topic/Greedy.md
index 3ff0d601..f8e2a959 100644
--- a/markdowns/by_topic/Greedy.md
+++ b/markdowns/by_topic/Greedy.md
@@ -9,34 +9,34 @@
 |  330 | [Patching Array](<https://leetcode.com/problems/patching-array>)                                                                                                             | Hard    | Daily          | [solution](<../_330. Patching Array.md>)                                                        | py               | Jun 16, 2024    |
 |  409 | [Longest Palindrome](<https://leetcode.com/problems/longest-palindrome>)                                                                                                     | Easy    | Daily          | [solution](<../_409. Longest Palindrome.md>)                                                    | c, py            | Jun 04, 2024    |
 |  502 | [IPO](<https://leetcode.com/problems/ipo>)                                                                                                                                   | Hard    | Daily          | [solution](<../_502. IPO.md>)                                                                   | py               | Jun 15, 2024    |
-|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                               | Easy    |                | [solution](<../_611. Valid Triangle Number.md>)                                                 | py               | May 22, 2024    |
-|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                       | Easy    |                | [solution](<../_807. Max Increase to Keep City Skyline.md>)                                     | java             | Jun 22, 2024    |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                     | Easy    | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                                            | py               | Jun 18, 2024    |
-|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                       | Easy    | Daily, N150    | [solution](<../_846. Hand of Straights.md>)                                                     | py               | Jun 06, 2024    |
-|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                   | Easy    |                | [solution](<../_861. Score After Flipping Matrix.md>)                                           | c, py            | Jun 10, 2024    |
-|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                               | Easy    |                | [solution](<../_921. Minimum Add to Make Parentheses Valid.md>)                                 | java, py         | Jun 12, 2024    |
-|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                             | Easy    | Daily          | [solution](<../_945. Minimum Increment to Make Array Unique.md>)                                | py               | Jun 14, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                 | Easy    | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                                         | py               | Jun 29, 2024    |
-| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                         | Easy    |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)                     | py               | Jun 15, 2024    |
-| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>) | Easy    | Daily          | [solution](<../_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>) | c, cpp, java, py | Jul 03, 2024    |
-| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                   | Easy    |                | [solution](<../_1561. Maximum Number of Coins You Can Get.md>)                                  | py               | Jun 23, 2024    |
-| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                             | Easy    |                | [solution](<../_1564. Put Boxes Into the Warehouse I.md>)                                       | py               | Jun 15, 2024    |
-| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                           | Easy    | Weekly Premium | [solution](<../_1580. Put Boxes Into the Warehouse II.md>)                                      | py               | Jun 15, 2024    |
-| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                   | Easy    | Daily          | [solution](<../_1605. Find Valid Matrix Given Row and Column Sums.md>)                          | py               | Jul 20, 2024    |
-| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                           | Easy    |                | [solution](<../_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)              | c, java          | Jun 22, 2024    |
-| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                             | Easy    | Daily          | [solution](<../_1717. Maximum Score From Removing Substrings.md>)                               | py               | Jul 12, 2024    |
+|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                               | Medium  |                | [solution](<../_611. Valid Triangle Number.md>)                                                 | py               | May 22, 2024    |
+|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                                       | Medium  |                | [solution](<../_807. Max Increase to Keep City Skyline.md>)                                     | java             | Jun 22, 2024    |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                     | Medium  | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                                            | py               | Jun 18, 2024    |
+|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                       | Medium  | Daily, N150    | [solution](<../_846. Hand of Straights.md>)                                                     | py               | Jun 06, 2024    |
+|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                                   | Medium  |                | [solution](<../_861. Score After Flipping Matrix.md>)                                           | c, py            | Jun 10, 2024    |
+|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                               | Medium  |                | [solution](<../_921. Minimum Add to Make Parentheses Valid.md>)                                 | java, py         | Jun 12, 2024    |
+|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                             | Medium  | Daily          | [solution](<../_945. Minimum Increment to Make Array Unique.md>)                                | py               | Jun 14, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                                                 | Medium  | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                                         | py               | Jun 29, 2024    |
+| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                         | Medium  |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)                     | py               | Jun 15, 2024    |
+| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>) | Medium  | Daily          | [solution](<../_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>) | c, cpp, java, py | Jul 03, 2024    |
+| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                   | Medium  |                | [solution](<../_1561. Maximum Number of Coins You Can Get.md>)                                  | py               | Jun 23, 2024    |
+| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                             | Medium  |                | [solution](<../_1564. Put Boxes Into the Warehouse I.md>)                                       | py               | Jun 15, 2024    |
+| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                           | Medium  | Weekly Premium | [solution](<../_1580. Put Boxes Into the Warehouse II.md>)                                      | py               | Jun 15, 2024    |
+| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                                   | Medium  | Daily          | [solution](<../_1605. Find Valid Matrix Given Row and Column Sums.md>)                          | py               | Jul 20, 2024    |
+| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                           | Medium  |                | [solution](<../_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)              | c, java          | Jun 22, 2024    |
+| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                             | Medium  | Daily          | [solution](<../_1717. Maximum Score From Removing Substrings.md>)                               | py               | Jul 12, 2024    |
 | 1736 | [Latest Time by Replacing Hidden Digits](<https://leetcode.com/problems/latest-time-by-replacing-hidden-digits>)                                                             | Easy    |                | [solution](<../_1736. Latest Time by Replacing Hidden Digits.md>)                               | c                | Jun 03, 2024    |
-| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                             | Easy    |                | [solution](<../_1833. Maximum Ice Cream Bars.md>)                                               | c, java, py      | Jun 23, 2024    |
-| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                     | Easy    |                | [solution](<../_1874. Minimize Product Sum of Two Arrays.md>)                                   | c, java          | Jun 22, 2024    |
-| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                     | Easy    |                | [solution](<../_1877. Minimize Maximum Pair Sum in Array.md>)                                   | py               | Jun 23, 2024    |
+| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                             | Medium  |                | [solution](<../_1833. Maximum Ice Cream Bars.md>)                                               | c, java, py      | Jun 23, 2024    |
+| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                     | Medium  |                | [solution](<../_1874. Minimize Product Sum of Two Arrays.md>)                                   | c, java          | Jun 22, 2024    |
+| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                     | Medium  |                | [solution](<../_1877. Minimize Maximum Pair Sum in Array.md>)                                   | py               | Jun 23, 2024    |
 | 2037 | [Minimum Number of Moves to Seat Everyone](<https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone>)                                                         | Easy    | Daily          | [solution](<../_2037. Minimum Number of Moves to Seat Everyone.md>)                             | c, py            | Jun 03, 2024    |
-| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                   | Easy    |                | [solution](<../_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                  | java             | Jul 01, 2024    |
-| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                 | Easy    |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                                         | py               | Jul 05, 2024    |
-| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                       | Easy    | Daily          | [solution](<../_2285. Maximum Total Importance of Roads.md>)                                    | c, cpp, java, py | Jun 28, 2024    |
+| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                                   | Medium  |                | [solution](<../_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                  | java             | Jul 01, 2024    |
+| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                 | Medium  |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                                         | py               | Jul 05, 2024    |
+| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                       | Medium  | Daily          | [solution](<../_2285. Maximum Total Importance of Roads.md>)                                    | c, cpp, java, py | Jun 28, 2024    |
 | 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                                                 | Easy    |                | [solution](<../_2389. Longest Subsequence With Limited Sum.md>)                                 | py               | Jun 01, 2024    |
-| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                   | Easy    |                | [solution](<../_2405. Optimal Partition of String.md>)                                          | py               | Jun 23, 2024    |
-| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                           | Easy    | Daily          | [solution](<../_2486. Append Characters to String to Make Subsequence.md>)                      | c, java, py      | Jun 03, 2024    |
-| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                   | Easy    |                | [solution](<../_2734. Lexicographically Smallest String After Substring Operation.md>)          | py               | Jun 29, 2024    |
+| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                                   | Medium  |                | [solution](<../_2405. Optimal Partition of String.md>)                                          | py               | Jun 23, 2024    |
+| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                           | Medium  | Daily          | [solution](<../_2486. Append Characters to String to Make Subsequence.md>)                      | c, java, py      | Jun 03, 2024    |
+| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)                   | Medium  |                | [solution](<../_2734. Lexicographically Smallest String After Substring Operation.md>)          | py               | Jun 29, 2024    |
 | 3074 | [Apple Redistribution into Boxes](<https://leetcode.com/problems/apple-redistribution-into-boxes>)                                                                           | Easy    |                | [solution](<../_3074. Apple Redistribution into Boxes.md>)                                      | py               | May 23, 2024    |
-| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)     | Easy    |                | [solution](<../_3106. Lexicographically Smallest String After Operations With Constraint.md>)   | py               | Jun 29, 2024    |
-| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)         | Easy    |                | [solution](<../_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)     | java             | Jun 22, 2024    |
\ No newline at end of file
+| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>)     | Medium  |                | [solution](<../_3106. Lexicographically Smallest String After Operations With Constraint.md>)   | py               | Jun 29, 2024    |
+| 3192 | [Minimum Operations to Make Binary Array Elements Equal to One II](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii>)         | Medium  |                | [solution](<../_3192. Minimum Operations to Make Binary Array Elements Equal to One II.md>)     | java             | Jun 22, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Hash Function.md b/markdowns/by_topic/Hash Function.md
index a16e04e6..10192462 100644
--- a/markdowns/by_topic/Hash Function.md	
+++ b/markdowns/by_topic/Hash Function.md	
@@ -6,8 +6,8 @@
 
 |    # | Title                                                                                                                                          | Level   | Cats      | Solution                                                                         | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:---------------------------------------------------------------------------------|:------------|:----------------|
-|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                         | Easy    |           | [solution](<../_535. Encode and Decode TinyURL.md>)                              | py          | Jun 07, 2024    |
+|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                         | Medium  |           | [solution](<../_535. Encode and Decode TinyURL.md>)                              | py          | Jun 07, 2024    |
 |  572 | [Subtree of Another Tree](<https://leetcode.com/problems/subtree-of-another-tree>)                                                             | Easy    | B75, N150 | [solution](<../_572. Subtree of Another Tree.md>)                                | py          | Jun 03, 2024    |
-| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>) | Easy    |           | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>) | py          | Jul 12, 2024    |
-| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                         | Easy    |           | [solution](<../_1698. Number of Distinct Substrings in a String.md>)             | java, py    | Jun 02, 2024    |
+| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>) | Medium  |           | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>) | py          | Jul 12, 2024    |
+| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                         | Medium  |           | [solution](<../_1698. Number of Distinct Substrings in a String.md>)             | java, py    | Jun 02, 2024    |
 | 3045 | [Count Prefix and Suffix Pairs II](<https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii>)                                           | Hard    |           | [solution](<../_3045. Count Prefix and Suffix Pairs II.md>)                      | py          | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Hash Table.md b/markdowns/by_topic/Hash Table.md
index ad7269ba..7b2c5e15 100644
--- a/markdowns/by_topic/Hash Table.md	
+++ b/markdowns/by_topic/Hash Table.md	
@@ -7,102 +7,102 @@
 |    # | Title                                                                                                                                                              | Level   | Cats           | Solution                                                                                   | Languages   | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:-------------------------------------------------------------------------------------------|:------------|:----------------|
 |    1 | [Two Sum](<https://leetcode.com/problems/two-sum>)                                                                                                                 | Easy    | B75, N150      | [solution](<../_1. Two Sum.md>)                                                            | java, py    | May 22, 2024    |
-|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                   | Easy    | B75, N150      | [solution](<../_3. Longest Substring Without Repeating Characters.md>)                     | java        | May 22, 2024    |
-|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                     | Easy    | N150           | [solution](<../_17. Letter Combinations of a Phone Number.md>)                             | java        | Jul 14, 2024    |
-|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                       | Easy    | N150           | [solution](<../_36. Valid Sudoku.md>)                                                      | py          | Jun 13, 2024    |
-|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                   | Easy    | B75, N150      | [solution](<../_49. Group Anagrams.md>)                                                    | py          | Jun 13, 2024    |
-|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                       | Easy    | B75, N150      | [solution](<../_128. Longest Consecutive Sequence.md>)                                     | java, py    | Jun 13, 2024    |
-|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                     | Easy    | N150           | [solution](<../_138. Copy List with Random Pointer.md>)                                    | py          | Jun 27, 2024    |
+|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                   | Medium  | B75, N150      | [solution](<../_3. Longest Substring Without Repeating Characters.md>)                     | java        | May 22, 2024    |
+|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                     | Medium  | N150           | [solution](<../_17. Letter Combinations of a Phone Number.md>)                             | java        | Jul 14, 2024    |
+|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                       | Medium  | N150           | [solution](<../_36. Valid Sudoku.md>)                                                      | py          | Jun 13, 2024    |
+|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                   | Medium  | B75, N150      | [solution](<../_49. Group Anagrams.md>)                                                    | py          | Jun 13, 2024    |
+|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                                       | Medium  | B75, N150      | [solution](<../_128. Longest Consecutive Sequence.md>)                                     | java, py    | Jun 13, 2024    |
+|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                     | Medium  | N150           | [solution](<../_138. Copy List with Random Pointer.md>)                                    | py          | Jun 27, 2024    |
 |  141 | [Linked List Cycle](<https://leetcode.com/problems/linked-list-cycle>)                                                                                             | Easy    | B75, N150      | [solution](<../_141. Linked List Cycle.md>)                                                | c, py       | Jun 04, 2024    |
-|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                       | Easy    |                | [solution](<../_142. Linked List Cycle II.md>)                                             | py          | Jun 26, 2024    |
-|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                     | Easy    |                | [solution](<../_166. Fraction to Recurring Decimal.md>)                                    | py          | May 31, 2024    |
-|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                         | Easy    | B75, N150      | [solution](<../_208. Implement Trie (Prefix Tree).md>)                                     | py          | Jun 27, 2024    |
+|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                       | Medium  |                | [solution](<../_142. Linked List Cycle II.md>)                                             | py          | Jun 26, 2024    |
+|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                     | Medium  |                | [solution](<../_166. Fraction to Recurring Decimal.md>)                                    | py          | May 31, 2024    |
+|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                         | Medium  | B75, N150      | [solution](<../_208. Implement Trie (Prefix Tree).md>)                                     | py          | Jun 27, 2024    |
 |  217 | [Contains Duplicate](<https://leetcode.com/problems/contains-duplicate>)                                                                                           | Easy    | B75, N150      | [solution](<../_217. Contains Duplicate.md>)                                               | py          | Jun 12, 2024    |
 |  242 | [Valid Anagram](<https://leetcode.com/problems/valid-anagram>)                                                                                                     | Easy    | B75, N150      | [solution](<../_242. Valid Anagram.md>)                                                    | c, py       | Jun 13, 2024    |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                       | Easy    |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                             | py          | Jun 12, 2024    |
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                 | Easy    | B75, N150      | [solution](<../_347. Top K Frequent Elements.md>)                                          | py          | Jun 13, 2024    |
-|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                           | Easy    |                | [solution](<../_348. Design Tic-Tac-Toe.md>)                                               | py          | Jul 05, 2024    |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                       | Medium  |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                             | py          | Jun 12, 2024    |
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                 | Medium  | B75, N150      | [solution](<../_347. Top K Frequent Elements.md>)                                          | py          | Jun 13, 2024    |
+|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                           | Medium  |                | [solution](<../_348. Design Tic-Tac-Toe.md>)                                               | py          | Jul 05, 2024    |
 |  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                     | Easy    | Daily          | [solution](<../_350. Intersection of Two Arrays II.md>)                                    | java, py    | Jul 02, 2024    |
-|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                             | Easy    |                | [solution](<../_353. Design Snake Game.md>)                                                | py          | Jun 28, 2024    |
-|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                         | Easy    |                | [solution](<../_380. Insert Delete GetRandom O(1).md>)                                     | java        | Jul 06, 2024    |
+|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                             | Medium  |                | [solution](<../_353. Design Snake Game.md>)                                                | py          | Jun 28, 2024    |
+|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                         | Medium  |                | [solution](<../_380. Insert Delete GetRandom O(1).md>)                                     | java        | Jul 06, 2024    |
 |  381 | [Insert Delete GetRandom O(1) - Duplicates allowed](<https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed>)                                 | Hard    |                | [solution](<../_381. Insert Delete GetRandom O(1) - Duplicates allowed.md>)                | java        | Jul 06, 2024    |
 |  409 | [Longest Palindrome](<https://leetcode.com/problems/longest-palindrome>)                                                                                           | Easy    | Daily          | [solution](<../_409. Longest Palindrome.md>)                                               | c, py       | Jun 04, 2024    |
-|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                 | Easy    | B75, N150      | [solution](<../_424. Longest Repeating Character Replacement.md>)                          | py          | Jul 06, 2024    |
-|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                       | Easy    |                | [solution](<../_451. Sort Characters By Frequency.md>)                                     | py          | Jun 18, 2024    |
-|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                 | Easy    | Daily          | [solution](<../_523. Continuous Subarray Sum.md>)                                          | py          | Jun 08, 2024    |
-|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                             | Easy    |                | [solution](<../_535. Encode and Decode TinyURL.md>)                                        | py          | Jun 07, 2024    |
-|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                     | Easy    | N150           | [solution](<../_567. Permutation in String.md>)                                            | py          | Jul 06, 2024    |
-|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                   | Easy    |                | [solution](<../_616. Add Bold Tag in String.md>)                                           | py          | Jun 28, 2024    |
+|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                 | Medium  | B75, N150      | [solution](<../_424. Longest Repeating Character Replacement.md>)                          | py          | Jul 06, 2024    |
+|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                       | Medium  |                | [solution](<../_451. Sort Characters By Frequency.md>)                                     | py          | Jun 18, 2024    |
+|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                 | Medium  | Daily          | [solution](<../_523. Continuous Subarray Sum.md>)                                          | py          | Jun 08, 2024    |
+|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                             | Medium  |                | [solution](<../_535. Encode and Decode TinyURL.md>)                                        | py          | Jun 07, 2024    |
+|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                     | Medium  | N150           | [solution](<../_567. Permutation in String.md>)                                            | py          | Jul 06, 2024    |
+|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                   | Medium  |                | [solution](<../_616. Add Bold Tag in String.md>)                                           | py          | Jun 28, 2024    |
 |  645 | [Set Mismatch](<https://leetcode.com/problems/set-mismatch>)                                                                                                       | Easy    |                | [solution](<../_645. Set Mismatch.md>)                                                     | java, py    | Jun 01, 2024    |
-|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                     | Easy    | Daily          | [solution](<../_648. Replace Words.md>)                                                    | java, py    | Jun 07, 2024    |
-|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                         | Easy    |                | [solution](<../_666. Path Sum IV.md>)                                                      | py          | Jul 03, 2024    |
-|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                           | Easy    |                | [solution](<../_676. Implement Magic Dictionary.md>)                                       | py          | Jun 27, 2024    |
-|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                         | Easy    |                | [solution](<../_690. Employee Importance.md>)                                              | java        | Jul 02, 2024    |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                       | Easy    |                | [solution](<../_692. Top K Frequent Words.md>)                                             | py          | Jun 09, 2024    |
-|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                           | Easy    |                | [solution](<../_720. Longest Word in Dictionary.md>)                                       | py          | Jun 27, 2024    |
+|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                     | Medium  | Daily          | [solution](<../_648. Replace Words.md>)                                                    | java, py    | Jun 07, 2024    |
+|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                                         | Medium  |                | [solution](<../_666. Path Sum IV.md>)                                                      | py          | Jul 03, 2024    |
+|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                           | Medium  |                | [solution](<../_676. Implement Magic Dictionary.md>)                                       | py          | Jun 27, 2024    |
+|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                                         | Medium  |                | [solution](<../_690. Employee Importance.md>)                                              | java        | Jul 02, 2024    |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                       | Medium  |                | [solution](<../_692. Top K Frequent Words.md>)                                             | py          | Jun 09, 2024    |
+|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                           | Medium  |                | [solution](<../_720. Longest Word in Dictionary.md>)                                       | py          | Jun 27, 2024    |
 |  726 | [Number of Atoms](<https://leetcode.com/problems/number-of-atoms>)                                                                                                 | Hard    | Daily          | [solution](<../_726. Number of Atoms.md>)                                                  | py          | Jul 14, 2024    |
-|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                       | Easy    |                | [solution](<../_758. Bold Words in String.md>)                                             | py          | Jun 28, 2024    |
+|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                       | Medium  |                | [solution](<../_758. Bold Words in String.md>)                                             | py          | Jun 28, 2024    |
 |  771 | [Jewels and Stones](<https://leetcode.com/problems/jewels-and-stones>)                                                                                             | Easy    |                | [solution](<../_771. Jewels and Stones.md>)                                                | java, py    | Jun 02, 2024    |
-|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                           | Easy    |                | [solution](<../_791. Custom Sort String.md>)                                               | java        | Jun 24, 2024    |
-|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                   | Easy    |                | [solution](<../_817. Linked List Components.md>)                                           | java        | Jul 04, 2024    |
-|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                             | Easy    | Daily, N150    | [solution](<../_846. Hand of Straights.md>)                                                | py          | Jun 06, 2024    |
-|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                         | Easy    |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                              | py          | Jun 26, 2024    |
-|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                               | Easy    |                | [solution](<../_890. Find and Replace Pattern.md>)                                         | py          | Jul 03, 2024    |
+|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                           | Medium  |                | [solution](<../_791. Custom Sort String.md>)                                               | java        | Jun 24, 2024    |
+|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                   | Medium  |                | [solution](<../_817. Linked List Components.md>)                                           | java        | Jul 04, 2024    |
+|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                             | Medium  | Daily, N150    | [solution](<../_846. Hand of Straights.md>)                                                | py          | Jun 06, 2024    |
+|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                                         | Medium  |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                              | py          | Jun 26, 2024    |
+|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                               | Medium  |                | [solution](<../_890. Find and Replace Pattern.md>)                                         | py          | Jul 03, 2024    |
 |  895 | [Maximum Frequency Stack](<https://leetcode.com/problems/maximum-frequency-stack>)                                                                                 | Hard    |                | [solution](<../_895. Maximum Frequency Stack.md>)                                          | java, py    | Jul 11, 2024    |
-|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                             | Easy    |                | [solution](<../_930. Binary Subarrays With Sum.md>)                                        | py          | Jun 22, 2024    |
-|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                       | Easy    | Daily          | [solution](<../_974. Subarray Sums Divisible by K.md>)                                     | java, py    | Jun 09, 2024    |
+|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                             | Medium  |                | [solution](<../_930. Binary Subarrays With Sum.md>)                                        | py          | Jun 22, 2024    |
+|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                       | Medium  | Daily          | [solution](<../_974. Subarray Sums Divisible by K.md>)                                     | java, py    | Jun 09, 2024    |
 |  987 | [Vertical Order Traversal of a Binary Tree](<https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree>)                                             | Hard    |                | [solution](<../_987. Vertical Order Traversal of a Binary Tree.md>)                        | py          | Jun 12, 2024    |
 | 1002 | [Find Common Characters](<https://leetcode.com/problems/find-common-characters>)                                                                                   | Easy    | Daily          | [solution](<../_1002. Find Common Characters.md>)                                          | py          | Jun 08, 2024    |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                   | Easy    | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                                  | py          | Jul 17, 2024    |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                                   | Medium  | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                                  | py          | Jul 17, 2024    |
 | 1122 | [Relative Sort Array](<https://leetcode.com/problems/relative-sort-array>)                                                                                         | Easy    | Daily          | [solution](<../_1122. Relative Sort Array.md>)                                             | java, py    | Jun 11, 2024    |
-| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                           | Easy    |                | [solution](<../_1166. Design File System.md>)                                              | py          | Jun 28, 2024    |
-| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                           | Easy    |                | [solution](<../_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)              | py          | Jun 15, 2024    |
-| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                           | Easy    |                | [solution](<../_1218. Longest Arithmetic Subsequence of Given Difference.md>)              | py          | May 31, 2024    |
-| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                   | Easy    | Daily          | [solution](<../_1248. Count Number of Nice Subarrays.md>)                                  | py          | Jun 22, 2024    |
-| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                       | Easy    |                | [solution](<../_1282. Group the People Given the Group Size They Belong To.md>)            | py          | Jun 28, 2024    |
+| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                           | Medium  |                | [solution](<../_1166. Design File System.md>)                                              | py          | Jun 28, 2024    |
+| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                           | Medium  |                | [solution](<../_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)              | py          | Jun 15, 2024    |
+| 1218 | [Longest Arithmetic Subsequence of Given Difference](<https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference>)                           | Medium  |                | [solution](<../_1218. Longest Arithmetic Subsequence of Given Difference.md>)              | py          | May 31, 2024    |
+| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                   | Medium  | Daily          | [solution](<../_1248. Count Number of Nice Subarrays.md>)                                  | py          | Jun 22, 2024    |
+| 1282 | [Group the People Given the Group Size They Belong To](<https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to>)                       | Medium  |                | [solution](<../_1282. Group the People Given the Group Size They Belong To.md>)            | py          | Jun 28, 2024    |
 | 1284 | [Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](<https://leetcode.com/problems/minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix>) | Hard    |                | [solution](<../_1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix.md>) | py          | Jun 09, 2024    |
 | 1426 | [Counting Elements](<https://leetcode.com/problems/counting-elements>)                                                                                             | Easy    |                | [solution](<../_1426. Counting Elements.md>)                                               | c           | Jun 04, 2024    |
 | 1436 | [Destination City](<https://leetcode.com/problems/destination-city>)                                                                                               | Easy    |                | [solution](<../_1436. Destination City.md>)                                                | java        | Jun 01, 2024    |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                       | Easy    | Daily          | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)            | py          | Jun 08, 2024    |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                       | Medium  | Daily          | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)            | py          | Jun 08, 2024    |
 | 1460 | [Make Two Arrays Equal by Reversing Subarrays](<https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays>)                                       | Easy    |                | [solution](<../_1460. Make Two Arrays Equal by Reversing Subarrays.md>)                    | c           | Jun 04, 2024    |
-| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                     | Easy    |                | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>)           | py          | Jul 12, 2024    |
-| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                               | Easy    |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)                | py          | Jun 15, 2024    |
-| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                               | Easy    |                | [solution](<../_1490. Clone N-ary Tree.md>)                                                | java, py    | Jun 02, 2024    |
-| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                     | Easy    |                | [solution](<../_1525. Number of Good Ways to Split a String.md>)                           | py          | Jun 01, 2024    |
-| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                             | Easy    |                | [solution](<../_1570. Dot Product of Two Sparse Vectors.md>)                               | c, java, py | Jun 06, 2024    |
-| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                         | Easy    |                | [solution](<../_1650. Lowest Common Ancestor of a Binary Tree III.md>)                     | py          | Jun 10, 2024    |
-| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                           | Easy    |                | [solution](<../_1657. Determine if Two Strings Are Close.md>)                              | py          | Jul 13, 2024    |
-| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                     | Easy    |                | [solution](<../_1660. Correct a Binary Tree.md>)                                           | py          | Jun 27, 2024    |
-| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                           | Easy    |                | [solution](<../_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                      | py          | Jun 29, 2024    |
+| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                     | Medium  |                | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>)           | py          | Jul 12, 2024    |
+| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                               | Medium  |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)                | py          | Jun 15, 2024    |
+| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                               | Medium  |                | [solution](<../_1490. Clone N-ary Tree.md>)                                                | java, py    | Jun 02, 2024    |
+| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                     | Medium  |                | [solution](<../_1525. Number of Good Ways to Split a String.md>)                           | py          | Jun 01, 2024    |
+| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                             | Medium  |                | [solution](<../_1570. Dot Product of Two Sparse Vectors.md>)                               | c, java, py | Jun 06, 2024    |
+| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                         | Medium  |                | [solution](<../_1650. Lowest Common Ancestor of a Binary Tree III.md>)                     | py          | Jun 10, 2024    |
+| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                           | Medium  |                | [solution](<../_1657. Determine if Two Strings Are Close.md>)                              | py          | Jul 13, 2024    |
+| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                                     | Medium  |                | [solution](<../_1660. Correct a Binary Tree.md>)                                           | py          | Jun 27, 2024    |
+| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                           | Medium  |                | [solution](<../_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                      | py          | Jun 29, 2024    |
 | 1684 | [Count the Number of Consistent Strings](<https://leetcode.com/problems/count-the-number-of-consistent-strings>)                                                   | Easy    |                | [solution](<../_1684. Count the Number of Consistent Strings.md>)                          | c, py       | Jun 06, 2024    |
-| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                   | Easy    | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                                  | py          | Jul 15, 2024    |
-| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                     | Easy    |                | [solution](<../_1743. Restore the Array From Adjacent Pairs.md>)                           | py          | Jun 27, 2024    |
+| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                                   | Medium  | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                                  | py          | Jul 15, 2024    |
+| 1743 | [Restore the Array From Adjacent Pairs](<https://leetcode.com/problems/restore-the-array-from-adjacent-pairs>)                                                     | Medium  |                | [solution](<../_1743. Restore the Array From Adjacent Pairs.md>)                           | py          | Jun 27, 2024    |
 | 1748 | [Sum of Unique Elements](<https://leetcode.com/problems/sum-of-unique-elements>)                                                                                   | Easy    |                | [solution](<../_1748. Sum of Unique Elements.md>)                                          | c           | Jun 06, 2024    |
-| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                   | Easy    |                | [solution](<../_1804. Implement Trie II (Prefix Tree).md>)                                 | py          | Jun 27, 2024    |
-| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                   | Easy    | Weekly Premium | [solution](<../_1836. Remove Duplicates From an Unsorted Linked List.md>)                  | java, py    | Jul 08, 2024    |
-| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                             | Easy    |                | [solution](<../_1852. Distinct Numbers in Each Subarray.md>)                               | java        | Jun 27, 2024    |
-| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                               | Easy    | Weekly Premium | [solution](<../_1940. Longest Common Subsequence Between Sorted Arrays.md>)                | java, py    | Jun 01, 2024    |
-| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                             | Easy    |                | [solution](<../_1980. Find Unique Binary String.md>)                                       | c, py       | Jun 27, 2024    |
-| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                   | Easy    | N150           | [solution](<../_2013. Detect Squares.md>)                                                  | py          | Jun 28, 2024    |
-| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                           | Easy    | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>)              | c, py       | Jun 10, 2024    |
-| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                       | Easy    | Daily          | [solution](<../_2196. Create Binary Tree From Descriptions.md>)                            | py          | Jul 15, 2024    |
+| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                   | Medium  |                | [solution](<../_1804. Implement Trie II (Prefix Tree).md>)                                 | py          | Jun 27, 2024    |
+| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                   | Medium  | Weekly Premium | [solution](<../_1836. Remove Duplicates From an Unsorted Linked List.md>)                  | java, py    | Jul 08, 2024    |
+| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                             | Medium  |                | [solution](<../_1852. Distinct Numbers in Each Subarray.md>)                               | java        | Jun 27, 2024    |
+| 1940 | [Longest Common Subsequence Between Sorted Arrays](<https://leetcode.com/problems/longest-common-subsequence-between-sorted-arrays>)                               | Medium  | Weekly Premium | [solution](<../_1940. Longest Common Subsequence Between Sorted Arrays.md>)                | java, py    | Jun 01, 2024    |
+| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                             | Medium  |                | [solution](<../_1980. Find Unique Binary String.md>)                                       | c, py       | Jun 27, 2024    |
+| 2013 | [Detect Squares](<https://leetcode.com/problems/detect-squares>)                                                                                                   | Medium  | N150           | [solution](<../_2013. Detect Squares.md>)                                                  | py          | Jun 28, 2024    |
+| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                           | Medium  | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>)              | c, py       | Jun 10, 2024    |
+| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                                       | Medium  | Daily          | [solution](<../_2196. Create Binary Tree From Descriptions.md>)                            | py          | Jul 15, 2024    |
 | 2206 | [Divide Array Into Equal Pairs](<https://leetcode.com/problems/divide-array-into-equal-pairs>)                                                                     | Easy    |                | [solution](<../_2206. Divide Array Into Equal Pairs.md>)                                   | c, py       | Jun 08, 2024    |
-| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                       | Easy    |                | [solution](<../_2225. Find Players With Zero or One Losses.md>)                            | java        | Jun 24, 2024    |
+| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                       | Medium  |                | [solution](<../_2225. Find Players With Zero or One Losses.md>)                            | java        | Jun 24, 2024    |
 | 2248 | [Intersection of Multiple Arrays](<https://leetcode.com/problems/intersection-of-multiple-arrays>)                                                                 | Easy    |                | [solution](<../_2248. Intersection of Multiple Arrays.md>)                                 | py          | May 31, 2024    |
-| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                       | Easy    |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                                    | py          | Jul 05, 2024    |
-| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                           | Easy    |                | [solution](<../_2352. Equal Row and Column Pairs.md>)                                      | py          | Jun 27, 2024    |
-| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                             | Easy    |                | [solution](<../_2365. Task Scheduler II.md>)                                               | py          | Jun 29, 2024    |
-| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                       | Easy    |                | [solution](<../_2374. Node With Highest Edge Score.md>)                                    | py          | Jun 18, 2024    |
-| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                     | Easy    |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)                   | py          | Jun 26, 2024    |
+| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                       | Medium  |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                                    | py          | Jul 05, 2024    |
+| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                           | Medium  |                | [solution](<../_2352. Equal Row and Column Pairs.md>)                                      | py          | Jun 27, 2024    |
+| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                             | Medium  |                | [solution](<../_2365. Task Scheduler II.md>)                                               | py          | Jun 29, 2024    |
+| 2374 | [Node With Highest Edge Score](<https://leetcode.com/problems/node-with-highest-edge-score>)                                                                       | Medium  |                | [solution](<../_2374. Node With Highest Edge Score.md>)                                    | py          | Jun 18, 2024    |
+| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                                     | Medium  |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)                   | py          | Jun 26, 2024    |
 | 2395 | [Find Subarrays With Equal Sum](<https://leetcode.com/problems/find-subarrays-with-equal-sum>)                                                                     | Easy    |                | [solution](<../_2395. Find Subarrays With Equal Sum.md>)                                   | py          | May 31, 2024    |
-| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                         | Easy    |                | [solution](<../_2405. Optimal Partition of String.md>)                                     | py          | Jun 23, 2024    |
+| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                         | Medium  |                | [solution](<../_2405. Optimal Partition of String.md>)                                     | py          | Jun 23, 2024    |
 | 2423 | [Remove Letter To Equalize Frequency](<https://leetcode.com/problems/remove-letter-to-equalize-frequency>)                                                         | Easy    |                | [solution](<../_2423. Remove Letter To Equalize Frequency.md>)                             | py          | Jun 17, 2024    |
 | 2570 | [Merge Two 2D Arrays by Summing Values](<https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values>)                                                     | Easy    |                | [solution](<../_2570. Merge Two 2D Arrays by Summing Values.md>)                           | c           | Jun 10, 2024    |
-| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                               | Easy    |                | [solution](<../_2610. Convert an Array Into a 2D Array With Conditions.md>)                | py          | Jun 07, 2024    |
-| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                             | Easy    |                | [solution](<../_2671. Frequency Tracker.md>)                                               | py          | Jun 28, 2024    |
-| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                       | Easy    | Weekly Premium | [solution](<../_2743. Count Substrings Without Repeating Character.md>)                    | java, py    | Jun 22, 2024    |
-| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                       | Easy    |                | [solution](<../_3043. Find the Length of the Longest Common Prefix.md>)                    | py          | Jun 28, 2024    |
+| 2610 | [Convert an Array Into a 2D Array With Conditions](<https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions>)                               | Medium  |                | [solution](<../_2610. Convert an Array Into a 2D Array With Conditions.md>)                | py          | Jun 07, 2024    |
+| 2671 | [Frequency Tracker](<https://leetcode.com/problems/frequency-tracker>)                                                                                             | Medium  |                | [solution](<../_2671. Frequency Tracker.md>)                                               | py          | Jun 28, 2024    |
+| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                       | Medium  | Weekly Premium | [solution](<../_2743. Count Substrings Without Repeating Character.md>)                    | java, py    | Jun 22, 2024    |
+| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                       | Medium  |                | [solution](<../_3043. Find the Length of the Longest Common Prefix.md>)                    | py          | Jun 28, 2024    |
 | 3174 | Biweekly Contest 132 - q1 - [Clear Digits](<https://leetcode.com/problems/clear-digits>)                                                                           | Easy    | Contest        | [solution](<../_3174. Clear Digits.md>)                                                    | py          | Jul 07, 2024    |
 | 3184 | Weekly Contest 402 - q1 - [Count Pairs That Form a Complete Day I](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-i>)                         | Easy    | Contest        | [solution](<../_3184. Count Pairs That Form a Complete Day I.md>)                          | py          | Jul 07, 2024    |
-| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                       | Easy    | Contest        | [solution](<../_3185. Count Pairs That Form a Complete Day II.md>)                         | py          | Jul 07, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                       | Easy    | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                         | py          | Jul 07, 2024    |
\ No newline at end of file
+| 3185 | Weekly Contest 402 - q2 - [Count Pairs That Form a Complete Day II](<https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii>)                       | Medium  | Contest        | [solution](<../_3185. Count Pairs That Form a Complete Day II.md>)                         | py          | Jul 07, 2024    |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                       | Medium  | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                         | py          | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Heap (Priority Queue).md b/markdowns/by_topic/Heap (Priority Queue).md
index cfd56341..f33f86fc 100644
--- a/markdowns/by_topic/Heap (Priority Queue).md	
+++ b/markdowns/by_topic/Heap (Priority Queue).md	
@@ -9,16 +9,16 @@
 |   23 | [Merge k Sorted Lists](<https://leetcode.com/problems/merge-k-sorted-lists>)                                                                                                             | Hard    | B75, N150 | [solution](<../_23. Merge k Sorted Lists.md>)                                                         | py               | Jun 17, 2024    |
 |  239 | [Sliding Window Maximum](<https://leetcode.com/problems/sliding-window-maximum>)                                                                                                         | Hard    | N150      | [solution](<../_239. Sliding Window Maximum.md>)                                                      | py               | Jun 04, 2024    |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                                                               | Hard    |           | [solution](<../_272. Closest Binary Search Tree Value II.md>)                                         | py               | Jul 01, 2024    |
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Easy    | B75, N150 | [solution](<../_347. Top K Frequent Elements.md>)                                                     | py               | Jun 13, 2024    |
-|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Easy    |           | [solution](<../_451. Sort Characters By Frequency.md>)                                                | py               | Jun 18, 2024    |
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                                       | Medium  | B75, N150 | [solution](<../_347. Top K Frequent Elements.md>)                                                     | py               | Jun 13, 2024    |
+|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                             | Medium  |           | [solution](<../_451. Sort Characters By Frequency.md>)                                                | py               | Jun 18, 2024    |
 |  502 | [IPO](<https://leetcode.com/problems/ipo>)                                                                                                                                               | Hard    | Daily     | [solution](<../_502. IPO.md>)                                                                         | py               | Jun 15, 2024    |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Easy    |           | [solution](<../_692. Top K Frequent Words.md>)                                                        | py               | Jun 09, 2024    |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                             | Medium  |           | [solution](<../_692. Top K Frequent Words.md>)                                                        | py               | Jun 09, 2024    |
 |  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                                                                       | Easy    | N150      | [solution](<../_703. Kth Largest Element in a Stream.md>)                                             | py               | Jul 05, 2024    |
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Easy    | N150      | [solution](<../_973. K Closest Points to Origin.md>)                                                  | py               | Jun 29, 2024    |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                                 | Medium  | N150      | [solution](<../_973. K Closest Points to Origin.md>)                                                  | py               | Jun 29, 2024    |
 | 1046 | [Last Stone Weight](<https://leetcode.com/problems/last-stone-weight>)                                                                                                                   | Easy    | N150      | [solution](<../_1046. Last Stone Weight.md>)                                                          | py               | Jun 04, 2024    |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Easy    |           | [solution](<../_1268. Search Suggestions System.md>)                                                  | py               | Jun 29, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily     | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java             | Jun 24, 2024    |
-| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Easy    |           | [solution](<../_1696. Jump Game VI.md>)                                                               | java, py         | Jul 03, 2024    |
-| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Easy    | Daily     | [solution](<../_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py | Jun 28, 2024    |
-| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Easy    |           | [solution](<../_2473. Minimum Cost to Buy Apples.md>)                                                 | py               | Jun 29, 2024    |
-| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Easy    |           | [solution](<../_2679. Sum in a Matrix.md>)                                                            | java             | May 22, 2024    |
\ No newline at end of file
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                                   | Medium  |           | [solution](<../_1268. Search Suggestions System.md>)                                                  | py               | Jun 29, 2024    |
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily     | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java             | Jun 24, 2024    |
+| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Medium  |           | [solution](<../_1696. Jump Game VI.md>)                                                               | java, py         | Jul 03, 2024    |
+| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                                   | Medium  | Daily     | [solution](<../_2285. Maximum Total Importance of Roads.md>)                                          | c, cpp, java, py | Jun 28, 2024    |
+| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>)                                                                                                 | Medium  |           | [solution](<../_2473. Minimum Cost to Buy Apples.md>)                                                 | py               | Jun 29, 2024    |
+| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                                       | Medium  |           | [solution](<../_2679. Sum in a Matrix.md>)                                                            | java             | May 22, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Interactive.md b/markdowns/by_topic/Interactive.md
index 7c85bdf8..bd519850 100644
--- a/markdowns/by_topic/Interactive.md
+++ b/markdowns/by_topic/Interactive.md
@@ -7,4 +7,4 @@
 |    # | Title                                                                                                                    | Level   | Cats   | Solution                                                              | Languages   | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:----------------------------------------------------------------------|:------------|:----------------|
 |  374 | [Guess Number Higher or Lower](<https://leetcode.com/problems/guess-number-higher-or-lower>)                             | Easy    |        | [solution](<../_374. Guess Number Higher or Lower.md>)                | java, py    | Jun 02, 2024    |
-| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>) | Easy    |        | [solution](<../_3064. Guess the Number Using Bitwise Questions I.md>) | c, py       | Jun 06, 2024    |
\ No newline at end of file
+| 3064 | [Guess the Number Using Bitwise Questions I](<https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i>) | Medium  |        | [solution](<../_3064. Guess the Number Using Bitwise Questions I.md>) | c, py       | Jun 06, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Iterator.md b/markdowns/by_topic/Iterator.md
index 39dce6ab..c82a6ac6 100644
--- a/markdowns/by_topic/Iterator.md
+++ b/markdowns/by_topic/Iterator.md
@@ -6,6 +6,6 @@
 
 |   # | Title                                                                                        | Level   | Cats   | Solution                                               | Languages   | Date Complete   |
 |----:|:---------------------------------------------------------------------------------------------|:--------|:-------|:-------------------------------------------------------|:------------|:----------------|
-| 173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)   | Easy    |        | [solution](<../_173. Binary Search Tree Iterator.md>)  | py          | Jun 26, 2024    |
-| 251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                       | Easy    |        | [solution](<../_251. Flatten 2D Vector.md>)            | py          | May 22, 2024    |
-| 341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>) | Easy    |        | [solution](<../_341. Flatten Nested List Iterator.md>) | java        | Jul 02, 2024    |
\ No newline at end of file
+| 173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)   | Medium  |        | [solution](<../_173. Binary Search Tree Iterator.md>)  | py          | Jun 26, 2024    |
+| 251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                       | Medium  |        | [solution](<../_251. Flatten 2D Vector.md>)            | py          | May 22, 2024    |
+| 341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>) | Medium  |        | [solution](<../_341. Flatten Nested List Iterator.md>) | java        | Jul 02, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Linked List.md b/markdowns/by_topic/Linked List.md
index 2c10dce6..fffdb50a 100644
--- a/markdowns/by_topic/Linked List.md	
+++ b/markdowns/by_topic/Linked List.md	
@@ -6,43 +6,43 @@
 
 |    # | Title                                                                                                                                                                        | Level   | Cats           | Solution                                                                                        | Languages        | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:------------------------------------------------------------------------------------------------|:-----------------|:----------------|
-|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                           | Easy    | N150           | [solution](<../_2. Add Two Numbers.md>)                                                         | java             | May 22, 2024    |
-|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                         | Easy    | B75, N150      | [solution](<../_19. Remove Nth Node From End of List.md>)                                       | c, java, py      | Jun 07, 2024    |
+|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                           | Medium  | N150           | [solution](<../_2. Add Two Numbers.md>)                                                         | java             | May 22, 2024    |
+|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                                         | Medium  | B75, N150      | [solution](<../_19. Remove Nth Node From End of List.md>)                                       | c, java, py      | Jun 07, 2024    |
 |   21 | [Merge Two Sorted Lists](<https://leetcode.com/problems/merge-two-sorted-lists>)                                                                                             | Easy    | B75, N150      | [solution](<../_21. Merge Two Sorted Lists.md>)                                                 | java             | May 22, 2024    |
 |   23 | [Merge k Sorted Lists](<https://leetcode.com/problems/merge-k-sorted-lists>)                                                                                                 | Hard    | B75, N150      | [solution](<../_23. Merge k Sorted Lists.md>)                                                   | py               | Jun 17, 2024    |
-|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                   | Easy    |                | [solution](<../_24. Swap Nodes in Pairs.md>)                                                    | c                | Jun 07, 2024    |
+|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                                   | Medium  |                | [solution](<../_24. Swap Nodes in Pairs.md>)                                                    | c                | Jun 07, 2024    |
 |   25 | [Reverse Nodes in k-Group](<https://leetcode.com/problems/reverse-nodes-in-k-group>)                                                                                         | Hard    | N150           | [solution](<../_25. Reverse Nodes in k-Group.md>)                                               | c                | Jun 07, 2024    |
-|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                   | Easy    |                | [solution](<../_61. Rotate List.md>)                                                            | py               | Jun 22, 2024    |
-|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                               | Easy    |                | [solution](<../_82. Remove Duplicates from Sorted List II.md>)                                  | py               | Jul 04, 2024    |
-|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                     | Easy    |                | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                                    | c, py            | Jun 11, 2024    |
-|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                               | Easy    | N150           | [solution](<../_138. Copy List with Random Pointer.md>)                                         | py               | Jun 27, 2024    |
+|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                                   | Medium  |                | [solution](<../_61. Rotate List.md>)                                                            | py               | Jun 22, 2024    |
+|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                               | Medium  |                | [solution](<../_82. Remove Duplicates from Sorted List II.md>)                                  | py               | Jul 04, 2024    |
+|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                                     | Medium  |                | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                                    | c, py            | Jun 11, 2024    |
+|  138 | [Copy List with Random Pointer](<https://leetcode.com/problems/copy-list-with-random-pointer>)                                                                               | Medium  | N150           | [solution](<../_138. Copy List with Random Pointer.md>)                                         | py               | Jun 27, 2024    |
 |  141 | [Linked List Cycle](<https://leetcode.com/problems/linked-list-cycle>)                                                                                                       | Easy    | B75, N150      | [solution](<../_141. Linked List Cycle.md>)                                                     | c, py            | Jun 04, 2024    |
-|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                 | Easy    |                | [solution](<../_142. Linked List Cycle II.md>)                                                  | py               | Jun 26, 2024    |
-|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                 | Easy    | B75, N150      | [solution](<../_143. Reorder List.md>)                                                          | java, py         | Jun 11, 2024    |
+|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                                 | Medium  |                | [solution](<../_142. Linked List Cycle II.md>)                                                  | py               | Jun 26, 2024    |
+|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                                 | Medium  | B75, N150      | [solution](<../_143. Reorder List.md>)                                                          | java, py         | Jun 11, 2024    |
 |  206 | [Reverse Linked List](<https://leetcode.com/problems/reverse-linked-list>)                                                                                                   | Easy    | B75, N150      | [solution](<../_206. Reverse Linked List.md>)                                                   | java             | Jun 27, 2024    |
-|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                 | Easy    |                | [solution](<../_328. Odd Even Linked List.md>)                                                  | py               | Jun 22, 2024    |
-|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                 | Easy    |                | [solution](<../_369. Plus One Linked List.md>)                                                  | c                | Jul 04, 2024    |
-|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                           | Easy    |                | [solution](<../_382. Linked List Random Node.md>)                                               | c, java, py      | Jun 22, 2024    |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                           | Easy    |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)               | py               | Jun 12, 2024    |
-|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                           | Easy    |                | [solution](<../_430. Flatten a Multilevel Doubly Linked List.md>)                               | cpp, java        | Jun 27, 2024    |
-|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                               | Easy    |                | [solution](<../_622. Design Circular Queue.md>)                                                 | py               | Jul 06, 2024    |
-|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                     | Easy    |                | [solution](<../_707. Design Linked List.md>)                                                    | java             | Jun 22, 2024    |
-|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                       | Easy    |                | [solution](<../_708. Insert into a Sorted Circular Linked List.md>)                             | py               | Jun 22, 2024    |
-|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                     | Easy    |                | [solution](<../_725. Split Linked List in Parts.md>)                                            | py               | Jun 22, 2024    |
-|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                             | Easy    |                | [solution](<../_817. Linked List Components.md>)                                                | java             | Jul 04, 2024    |
-| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                         | Easy    |                | [solution](<../_1019. Next Greater Node In Linked List.md>)                                     | py               | Jun 22, 2024    |
-| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                     | Easy    |                | [solution](<../_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                   | py               | Jun 15, 2024    |
-| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                             | Easy    |                | [solution](<../_1265. Print Immutable Linked List in Reverse.md>)                               | c, py            | Jun 06, 2024    |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                             | Easy    |                | [solution](<../_1472. Design Browser History.md>)                                               | py               | Jul 06, 2024    |
+|  328 | [Odd Even Linked List](<https://leetcode.com/problems/odd-even-linked-list>)                                                                                                 | Medium  |                | [solution](<../_328. Odd Even Linked List.md>)                                                  | py               | Jun 22, 2024    |
+|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                                 | Medium  |                | [solution](<../_369. Plus One Linked List.md>)                                                  | c                | Jul 04, 2024    |
+|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                           | Medium  |                | [solution](<../_382. Linked List Random Node.md>)                                               | c, java, py      | Jun 22, 2024    |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)                           | Medium  |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)               | py               | Jun 12, 2024    |
+|  430 | [Flatten a Multilevel Doubly Linked List](<https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list>)                                                           | Medium  |                | [solution](<../_430. Flatten a Multilevel Doubly Linked List.md>)                               | cpp, java        | Jun 27, 2024    |
+|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                               | Medium  |                | [solution](<../_622. Design Circular Queue.md>)                                                 | py               | Jul 06, 2024    |
+|  707 | [Design Linked List](<https://leetcode.com/problems/design-linked-list>)                                                                                                     | Medium  |                | [solution](<../_707. Design Linked List.md>)                                                    | java             | Jun 22, 2024    |
+|  708 | [Insert into a Sorted Circular Linked List](<https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list>)                                                       | Medium  |                | [solution](<../_708. Insert into a Sorted Circular Linked List.md>)                             | py               | Jun 22, 2024    |
+|  725 | [Split Linked List in Parts](<https://leetcode.com/problems/split-linked-list-in-parts>)                                                                                     | Medium  |                | [solution](<../_725. Split Linked List in Parts.md>)                                            | py               | Jun 22, 2024    |
+|  817 | [Linked List Components](<https://leetcode.com/problems/linked-list-components>)                                                                                             | Medium  |                | [solution](<../_817. Linked List Components.md>)                                                | java             | Jul 04, 2024    |
+| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                                                         | Medium  |                | [solution](<../_1019. Next Greater Node In Linked List.md>)                                     | py               | Jun 22, 2024    |
+| 1171 | [Remove Zero Sum Consecutive Nodes from Linked List](<https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list>)                                     | Medium  |                | [solution](<../_1171. Remove Zero Sum Consecutive Nodes from Linked List.md>)                   | py               | Jun 15, 2024    |
+| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                                             | Medium  |                | [solution](<../_1265. Print Immutable Linked List in Reverse.md>)                               | c, py            | Jun 06, 2024    |
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                                             | Medium  |                | [solution](<../_1472. Design Browser History.md>)                                               | py               | Jul 06, 2024    |
 | 1474 | [Delete N Nodes After M Nodes of a Linked List](<https://leetcode.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list>)                                               | Easy    |                | [solution](<../_1474. Delete N Nodes After M Nodes of a Linked List.md>)                        | c, java          | Jun 07, 2024    |
-| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                               | Easy    |                | [solution](<../_1669. Merge In Between Linked Lists.md>)                                        | c                | Jun 24, 2024    |
-| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                           | Easy    |                | [solution](<../_1721. Swapping Nodes in a Linked List.md>)                                      | c                | Jun 07, 2024    |
-| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                             | Easy    | Weekly Premium | [solution](<../_1836. Remove Duplicates From an Unsorted Linked List.md>)                       | java, py         | Jul 08, 2024    |
-| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                               | Easy    |                | [solution](<../_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                | py               | Jul 04, 2024    |
-| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>) | Easy    | Daily          | [solution](<../_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>) | cpp, java, py    | Jul 05, 2024    |
-| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                           | Easy    |                | [solution](<../_2095. Delete the Middle Node of a Linked List.md>)                              | c, java          | Jun 07, 2024    |
-| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                       | Easy    |                | [solution](<../_2130. Maximum Twin Sum of a Linked List.md>)                                    | py               | Jun 21, 2024    |
-| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                 | Easy    | Daily          | [solution](<../_2181. Merge Nodes in Between Zeros.md>)                                         | c, cpp, java, py | Jul 04, 2024    |
-| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                               | Easy    |                | [solution](<../_2487. Remove Nodes From Linked List.md>)                                        | py               | Jun 12, 2024    |
-| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                             | Easy    |                | [solution](<../_2807. Insert Greatest Common Divisors in Linked List.md>)                       | py               | Jun 13, 2024    |
-| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                 | Easy    |                | [solution](<../_2816. Double a Number Represented as a Linked List.md>)                         | c                | Jul 04, 2024    |
\ No newline at end of file
+| 1669 | [Merge In Between Linked Lists](<https://leetcode.com/problems/merge-in-between-linked-lists>)                                                                               | Medium  |                | [solution](<../_1669. Merge In Between Linked Lists.md>)                                        | c                | Jun 24, 2024    |
+| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                                           | Medium  |                | [solution](<../_1721. Swapping Nodes in a Linked List.md>)                                      | c                | Jun 07, 2024    |
+| 1836 | [Remove Duplicates From an Unsorted Linked List](<https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list>)                                             | Medium  | Weekly Premium | [solution](<../_1836. Remove Duplicates From an Unsorted Linked List.md>)                       | java, py         | Jul 08, 2024    |
+| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                               | Medium  |                | [solution](<../_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                | py               | Jul 04, 2024    |
+| 2058 | [Find the Minimum and Maximum Number of Nodes Between Critical Points](<https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points>) | Medium  | Daily          | [solution](<../_2058. Find the Minimum and Maximum Number of Nodes Between Critical Points.md>) | cpp, java, py    | Jul 05, 2024    |
+| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                                           | Medium  |                | [solution](<../_2095. Delete the Middle Node of a Linked List.md>)                              | c, java          | Jun 07, 2024    |
+| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                                       | Medium  |                | [solution](<../_2130. Maximum Twin Sum of a Linked List.md>)                                    | py               | Jun 21, 2024    |
+| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                                 | Medium  | Daily          | [solution](<../_2181. Merge Nodes in Between Zeros.md>)                                         | c, cpp, java, py | Jul 04, 2024    |
+| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                                               | Medium  |                | [solution](<../_2487. Remove Nodes From Linked List.md>)                                        | py               | Jun 12, 2024    |
+| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                             | Medium  |                | [solution](<../_2807. Insert Greatest Common Divisors in Linked List.md>)                       | py               | Jun 13, 2024    |
+| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                                 | Medium  |                | [solution](<../_2816. Double a Number Represented as a Linked List.md>)                         | c                | Jul 04, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Math.md b/markdowns/by_topic/Math.md
index 6e586be2..ed25c38f 100644
--- a/markdowns/by_topic/Math.md
+++ b/markdowns/by_topic/Math.md
@@ -6,57 +6,57 @@
 
 |    # | Title                                                                                                                                                              | Level   | Cats           | Solution                                                                                   | Languages                        | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:-------------------------------------------------------------------------------------------|:---------------------------------|:----------------|
-|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                 | Easy    | N150           | [solution](<../_2. Add Two Numbers.md>)                                                    | java                             | May 22, 2024    |
-|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                 | Easy    | N150           | [solution](<../_7. Reverse Integer.md>)                                                    | py                               | May 29, 2024    |
+|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                                 | Medium  | N150           | [solution](<../_2. Add Two Numbers.md>)                                                    | java                             | May 22, 2024    |
+|    7 | [Reverse Integer](<https://leetcode.com/problems/reverse-integer>)                                                                                                 | Medium  | N150           | [solution](<../_7. Reverse Integer.md>)                                                    | py                               | May 29, 2024    |
 |    9 | [Palindrome Number](<https://leetcode.com/problems/palindrome-number>)                                                                                             | Easy    |                | [solution](<../_9. Palindrome Number.md>)                                                  | java                             | May 22, 2024    |
-|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                       | Easy    | B75, N150      | [solution](<../_48. Rotate Image.md>)                                                      | c, py                            | Jun 15, 2024    |
-|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                | Easy    | N150           | [solution](<../_50. Pow(x, n).md>)                                                         | c, java, py                      | Jun 23, 2024    |
+|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                       | Medium  | B75, N150      | [solution](<../_48. Rotate Image.md>)                                                      | c, py                            | Jun 15, 2024    |
+|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                                | Medium  | N150           | [solution](<../_50. Pow(x, n).md>)                                                         | c, java, py                      | Jun 23, 2024    |
 |   66 | [Plus One](<https://leetcode.com/problems/plus-one>)                                                                                                               | Easy    | N150           | [solution](<../_66. Plus One.md>)                                                          | c                                | Jun 03, 2024    |
 |   69 | [Sqrt(x)](<https://leetcode.com/problems/sqrtx>)                                                                                                                   | Easy    |                | [solution](<../_69. Sqrt(x).md>)                                                           | py                               | Jun 07, 2024    |
 |   70 | [Climbing Stairs](<https://leetcode.com/problems/climbing-stairs>)                                                                                                 | Easy    | B75, N150      | [solution](<../_70. Climbing Stairs.md>)                                                   | py                               | May 22, 2024    |
-|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                               | Easy    | N150           | [solution](<../_150. Evaluate Reverse Polish Notation.md>)                                 | py                               | Jun 11, 2024    |
-|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                     | Easy    |                | [solution](<../_166. Fraction to Recurring Decimal.md>)                                    | py                               | May 31, 2024    |
-|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                       | Easy    |                | [solution](<../_189. Rotate Array.md>)                                                     | py                               | Jun 02, 2024    |
+|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                                               | Medium  | N150           | [solution](<../_150. Evaluate Reverse Polish Notation.md>)                                 | py                               | Jun 11, 2024    |
+|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                     | Medium  |                | [solution](<../_166. Fraction to Recurring Decimal.md>)                                    | py                               | May 31, 2024    |
+|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                       | Medium  |                | [solution](<../_189. Rotate Array.md>)                                                     | py                               | Jun 02, 2024    |
 |  224 | [Basic Calculator](<https://leetcode.com/problems/basic-calculator>)                                                                                               | Hard    |                | [solution](<../_224. Basic Calculator.md>)                                                 | py                               | Jun 10, 2024    |
-|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                         | Easy    |                | [solution](<../_227. Basic Calculator II.md>)                                              | py                               | Jun 10, 2024    |
+|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                         | Medium  |                | [solution](<../_227. Basic Calculator II.md>)                                              | py                               | Jun 10, 2024    |
 |  273 | [Integer to English Words](<https://leetcode.com/problems/integer-to-english-words>)                                                                               | Hard    |                | [solution](<../_273. Integer to English Words.md>)                                         | py                               | Jun 11, 2024    |
 |  292 | [Nim Game](<https://leetcode.com/problems/nim-game>)                                                                                                               | Easy    |                | [solution](<../_292. Nim Game.md>)                                                         | py                               | May 23, 2024    |
-|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                       | Easy    |                | [solution](<../_369. Plus One Linked List.md>)                                             | c                                | Jul 04, 2024    |
-|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                         | Easy    |                | [solution](<../_380. Insert Delete GetRandom O(1).md>)                                     | java                             | Jul 06, 2024    |
+|  369 | [Plus One Linked List](<https://leetcode.com/problems/plus-one-linked-list>)                                                                                       | Medium  |                | [solution](<../_369. Plus One Linked List.md>)                                             | c                                | Jul 04, 2024    |
+|  380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                                                         | Medium  |                | [solution](<../_380. Insert Delete GetRandom O(1).md>)                                     | java                             | Jul 06, 2024    |
 |  381 | [Insert Delete GetRandom O(1) - Duplicates allowed](<https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed>)                                 | Hard    |                | [solution](<../_381. Insert Delete GetRandom O(1) - Duplicates allowed.md>)                | java                             | Jul 06, 2024    |
-|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                 | Easy    |                | [solution](<../_382. Linked List Random Node.md>)                                          | c, java, py                      | Jun 22, 2024    |
-|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                               | Easy    |                | [solution](<../_384. Shuffle an Array.md>)                                                 | py                               | Jun 29, 2024    |
+|  382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                                                 | Medium  |                | [solution](<../_382. Linked List Random Node.md>)                                          | c, java, py                      | Jun 22, 2024    |
+|  384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                                                               | Medium  |                | [solution](<../_384. Shuffle an Array.md>)                                                 | py                               | Jun 29, 2024    |
 |  412 | [Fizz Buzz](<https://leetcode.com/problems/fizz-buzz>)                                                                                                             | Easy    |                | [solution](<../_412. Fizz Buzz.md>)                                                        | java, py                         | Jun 02, 2024    |
 |  509 | [Fibonacci Number](<https://leetcode.com/problems/fibonacci-number>)                                                                                               | Easy    |                | [solution](<../_509. Fibonacci Number.md>)                                                 | c                                | Jun 17, 2024    |
-|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                 | Easy    | Daily          | [solution](<../_523. Continuous Subarray Sum.md>)                                          | py                               | Jun 08, 2024    |
-|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                 | Easy    |                | [solution](<../_651. 4 Keys Keyboard.md>)                                                  | py                               | May 29, 2024    |
-|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                           | Easy    |                | [solution](<../_877. Stone Game.md>)                                                       | c, cpp, go, java, js, py         | Jul 11, 2024    |
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                           | Easy    | N150           | [solution](<../_973. K Closest Points to Origin.md>)                                       | py                               | Jun 29, 2024    |
-| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                               | Easy    |                | [solution](<../_1006. Clumsy Factorial.md>)                                                | c, py                            | Jun 12, 2024    |
+|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                 | Medium  | Daily          | [solution](<../_523. Continuous Subarray Sum.md>)                                          | py                               | Jun 08, 2024    |
+|  651 | [4 Keys Keyboard](<https://leetcode.com/problems/4-keys-keyboard>)                                                                                                 | Medium  |                | [solution](<../_651. 4 Keys Keyboard.md>)                                                  | py                               | May 29, 2024    |
+|  877 | [Stone Game](<https://leetcode.com/problems/stone-game>)                                                                                                           | Medium  |                | [solution](<../_877. Stone Game.md>)                                                       | c, cpp, go, java, js, py         | Jul 11, 2024    |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                           | Medium  | N150           | [solution](<../_973. K Closest Points to Origin.md>)                                       | py                               | Jun 29, 2024    |
+| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                               | Medium  |                | [solution](<../_1006. Clumsy Factorial.md>)                                                | c, py                            | Jun 12, 2024    |
 | 1030 | [Matrix Cells in Distance Order](<https://leetcode.com/problems/matrix-cells-in-distance-order>)                                                                   | Easy    |                | [solution](<../_1030. Matrix Cells in Distance Order.md>)                                  | py                               | Jun 04, 2024    |
-| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                   | Easy    | Daily          | [solution](<../_1248. Count Number of Nice Subarrays.md>)                                  | py                               | Jun 22, 2024    |
+| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                   | Medium  | Daily          | [solution](<../_1248. Count Number of Nice Subarrays.md>)                                  | py                               | Jun 22, 2024    |
 | 1252 | [Cells with Odd Values in a Matrix](<https://leetcode.com/problems/cells-with-odd-values-in-a-matrix>)                                                             | Easy    |                | [solution](<../_1252. Cells with Odd Values in a Matrix.md>)                               | c                                | Jun 04, 2024    |
 | 1317 | [Convert Integer to the Sum of Two No-Zero Integers](<https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers>)                           | Easy    |                | [solution](<../_1317. Convert Integer to the Sum of Two No-Zero Integers.md>)              | c                                | Jun 04, 2024    |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                       | Easy    | Daily          | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)            | py                               | Jun 08, 2024    |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                       | Medium  | Daily          | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)            | py                               | Jun 08, 2024    |
 | 1518 | [Water Bottles](<https://leetcode.com/problems/water-bottles>)                                                                                                     | Easy    | Daily          | [solution](<../_1518. Water Bottles.md>)                                                   | c, cpp, cs, java, js, py, ts     | Jul 07, 2024    |
-| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                   | Easy    |                | [solution](<../_1551. Minimum Operations to Make Array Equal.md>)                          | c, java, js, kt, py, rb, rs      | Jun 13, 2024    |
-| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                         | Easy    |                | [solution](<../_1561. Maximum Number of Coins You Can Get.md>)                             | py                               | Jun 23, 2024    |
-| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                           | Easy    |                | [solution](<../_1641. Count Sorted Vowel Strings.md>)                                      | c, cpp, java                     | Jun 24, 2024    |
-| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                     | Easy    |                | [solution](<../_1759. Count Number of Homogenous Substrings.md>)                           | c, java                          | Jun 10, 2024    |
+| 1551 | [Minimum Operations to Make Array Equal](<https://leetcode.com/problems/minimum-operations-to-make-array-equal>)                                                   | Medium  |                | [solution](<../_1551. Minimum Operations to Make Array Equal.md>)                          | c, java, js, kt, py, rb, rs      | Jun 13, 2024    |
+| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                         | Medium  |                | [solution](<../_1561. Maximum Number of Coins You Can Get.md>)                             | py                               | Jun 23, 2024    |
+| 1641 | [Count Sorted Vowel Strings](<https://leetcode.com/problems/count-sorted-vowel-strings>)                                                                           | Medium  |                | [solution](<../_1641. Count Sorted Vowel Strings.md>)                                      | c, cpp, java                     | Jun 24, 2024    |
+| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                     | Medium  |                | [solution](<../_1759. Count Number of Homogenous Substrings.md>)                           | c, java                          | Jun 10, 2024    |
 | 1822 | [Sign of the Product of an Array](<https://leetcode.com/problems/sign-of-the-product-of-an-array>)                                                                 | Easy    |                | [solution](<../_1822. Sign of the Product of an Array.md>)                                 | c                                | Jun 06, 2024    |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                       | Easy    | Daily          | [solution](<../_1823. Find the Winner of the Circular Game.md>)                            | c, cpp, java, js, py             | Jul 08, 2024    |
-| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                             | Easy    |                | [solution](<../_1884. Egg Drop With 2 Eggs and N Floors.md>)                               | c, java, js                      | Jul 11, 2024    |
-| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                           | Easy    | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>)              | c, py                            | Jun 10, 2024    |
-| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                 | Easy    |                | [solution](<../_2165. Smallest Value of the Rearranged Number.md>)                         | py                               | Jul 01, 2024    |
-| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                 | Easy    |                | [solution](<../_2221. Find Triangular Sum of an Array.md>)                                 | c, java                          | Jun 27, 2024    |
-| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                      | Easy    |                | [solution](<../_2317. Maximum XOR After Operations .md>)                                   | c, cpp, java, py                 | Jun 24, 2024    |
-| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                         | Easy    |                | [solution](<../_2396. Strictly Palindromic Number.md>)                                     | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                       | Medium  | Daily          | [solution](<../_1823. Find the Winner of the Circular Game.md>)                            | c, cpp, java, js, py             | Jul 08, 2024    |
+| 1884 | [Egg Drop With 2 Eggs and N Floors](<https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors>)                                                             | Medium  |                | [solution](<../_1884. Egg Drop With 2 Eggs and N Floors.md>)                               | c, java, js                      | Jul 11, 2024    |
+| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                           | Medium  | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>)              | c, py                            | Jun 10, 2024    |
+| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                 | Medium  |                | [solution](<../_2165. Smallest Value of the Rearranged Number.md>)                         | py                               | Jul 01, 2024    |
+| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                                 | Medium  |                | [solution](<../_2221. Find Triangular Sum of an Array.md>)                                 | c, java                          | Jun 27, 2024    |
+| 2317 | [Maximum XOR After Operations ](<https://leetcode.com/problems/maximum-xor-after-operations>)                                                                      | Medium  |                | [solution](<../_2317. Maximum XOR After Operations .md>)                                   | c, cpp, java, py                 | Jun 24, 2024    |
+| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                         | Medium  |                | [solution](<../_2396. Strictly Palindromic Number.md>)                                     | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
 | 2455 | [Average Value of Even Numbers That Are Divisible by Three](<https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three>)             | Easy    |                | [solution](<../_2455. Average Value of Even Numbers That Are Divisible by Three.md>)       | java                             | Jul 04, 2024    |
 | 2582 | [Pass the Pillow](<https://leetcode.com/problems/pass-the-pillow>)                                                                                                 | Easy    | Daily          | [solution](<../_2582. Pass the Pillow.md>)                                                 | c, cpp, cs, java, js, py         | Jul 06, 2024    |
-| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                   | Easy    |                | [solution](<../_2807. Insert Greatest Common Divisors in Linked List.md>)                  | py                               | Jun 13, 2024    |
-| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                       | Easy    |                | [solution](<../_2816. Double a Number Represented as a Linked List.md>)                    | c                                | Jul 04, 2024    |
+| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>)                                   | Medium  |                | [solution](<../_2807. Insert Greatest Common Divisors in Linked List.md>)                  | py                               | Jun 13, 2024    |
+| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                                       | Medium  |                | [solution](<../_2816. Double a Number Represented as a Linked List.md>)                    | c                                | Jul 04, 2024    |
 | 2894 | [Divisible and Non-divisible Sums Difference](<https://leetcode.com/problems/divisible-and-non-divisible-sums-difference>)                                         | Easy    |                | [solution](<../_2894. Divisible and Non-divisible Sums Difference.md>)                     | py                               | May 22, 2024    |
 | 2954 | [Count the Number of Infection Sequences](<https://leetcode.com/problems/count-the-number-of-infection-sequences>)                                                 | Hard    |                | [solution](<../_2954. Count the Number of Infection Sequences.md>)                         | py                               | Jun 26, 2024    |
 | 3178 | Weekly Contest 401 - q1 - [Find the Child Who Has the Ball After K Seconds](<https://leetcode.com/problems/find-the-child-who-has-the-ball-after-k-seconds>)       | Easy    | Contest        | [solution](<../_3178. Find the Child Who Has the Ball After K Seconds.md>)                 | py                               | Jul 07, 2024    |
-| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                               | Easy    | Contest        | [solution](<../_3179. Find the N-th Value After K Seconds.md>)                             | py                               | Jul 07, 2024    |
+| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                               | Medium  | Contest        | [solution](<../_3179. Find the N-th Value After K Seconds.md>)                             | py                               | Jul 07, 2024    |
 | 3190 | [Find Minimum Operations to Make All Elements Divisible by Three](<https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three>) | Easy    |                | [solution](<../_3190. Find Minimum Operations to Make All Elements Divisible by Three.md>) | java                             | Jun 22, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Matrix.md b/markdowns/by_topic/Matrix.md
index 9b86d67d..202146a0 100644
--- a/markdowns/by_topic/Matrix.md
+++ b/markdowns/by_topic/Matrix.md
@@ -6,37 +6,37 @@
 
 |    # | Title                                                                                                                                                              | Level   | Cats      | Solution                                                                                   | Languages   | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:-------------------------------------------------------------------------------------------|:------------|:----------------|
-|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                       | Easy    | N150      | [solution](<../_36. Valid Sudoku.md>)                                                      | py          | Jun 13, 2024    |
-|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                       | Easy    | B75, N150 | [solution](<../_48. Rotate Image.md>)                                                      | c, py       | Jun 15, 2024    |
-|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                           | Easy    | N150      | [solution](<../_74. Search a 2D Matrix.md>)                                                | py          | Jun 15, 2024    |
-|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                         | Easy    | B75, N150 | [solution](<../_79. Word Search.md>)                                                       | py          | Jun 27, 2024    |
-|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                             | Easy    | B75, N150 | [solution](<../_200. Number of Islands.md>)                                                | py          | Jun 17, 2024    |
+|   36 | [Valid Sudoku](<https://leetcode.com/problems/valid-sudoku>)                                                                                                       | Medium  | N150      | [solution](<../_36. Valid Sudoku.md>)                                                      | py          | Jun 13, 2024    |
+|   48 | [Rotate Image](<https://leetcode.com/problems/rotate-image>)                                                                                                       | Medium  | B75, N150 | [solution](<../_48. Rotate Image.md>)                                                      | c, py       | Jun 15, 2024    |
+|   74 | [Search a 2D Matrix](<https://leetcode.com/problems/search-a-2d-matrix>)                                                                                           | Medium  | N150      | [solution](<../_74. Search a 2D Matrix.md>)                                                | py          | Jun 15, 2024    |
+|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                         | Medium  | B75, N150 | [solution](<../_79. Word Search.md>)                                                       | py          | Jun 27, 2024    |
+|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                             | Medium  | B75, N150 | [solution](<../_200. Number of Islands.md>)                                                | py          | Jun 17, 2024    |
 |  212 | [Word Search II](<https://leetcode.com/problems/word-search-ii>)                                                                                                   | Hard    | B75, N150 | [solution](<../_212. Word Search II.md>)                                                   | py          | Jun 27, 2024    |
-|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                 | Easy    | N150      | [solution](<../_286. Walls and Gates.md>)                                                  | py          | Jun 15, 2024    |
-|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                           | Easy    |           | [solution](<../_348. Design Tic-Tac-Toe.md>)                                               | py          | Jul 05, 2024    |
-|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                   | Easy    |           | [solution](<../_419. Battleships in a Board.md>)                                           | c, py       | Jun 24, 2024    |
-|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                             | Easy    |           | [solution](<../_542. 01 Matrix.md>)                                                        | py          | Jun 26, 2024    |
-|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                           | Easy    | N150      | [solution](<../_695. Max Area of Island.md>)                                               | c           | Jun 24, 2024    |
-|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                 | Easy    |           | [solution](<../_794. Valid Tic-Tac-Toe State.md>)                                          | py          | Jul 05, 2024    |
-|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                             | Easy    |           | [solution](<../_807. Max Increase to Keep City Skyline.md>)                                | java        | Jun 22, 2024    |
-|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                         | Easy    |           | [solution](<../_861. Score After Flipping Matrix.md>)                                      | c, py       | Jun 10, 2024    |
+|  286 | [Walls and Gates](<https://leetcode.com/problems/walls-and-gates>)                                                                                                 | Medium  | N150      | [solution](<../_286. Walls and Gates.md>)                                                  | py          | Jun 15, 2024    |
+|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                           | Medium  |           | [solution](<../_348. Design Tic-Tac-Toe.md>)                                               | py          | Jul 05, 2024    |
+|  419 | [Battleships in a Board](<https://leetcode.com/problems/battleships-in-a-board>)                                                                                   | Medium  |           | [solution](<../_419. Battleships in a Board.md>)                                           | c, py       | Jun 24, 2024    |
+|  542 | [01 Matrix](<https://leetcode.com/problems/01-matrix>)                                                                                                             | Medium  |           | [solution](<../_542. 01 Matrix.md>)                                                        | py          | Jun 26, 2024    |
+|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                           | Medium  | N150      | [solution](<../_695. Max Area of Island.md>)                                               | c           | Jun 24, 2024    |
+|  794 | [Valid Tic-Tac-Toe State](<https://leetcode.com/problems/valid-tic-tac-toe-state>)                                                                                 | Medium  |           | [solution](<../_794. Valid Tic-Tac-Toe State.md>)                                          | py          | Jul 05, 2024    |
+|  807 | [Max Increase to Keep City Skyline](<https://leetcode.com/problems/max-increase-to-keep-city-skyline>)                                                             | Medium  |           | [solution](<../_807. Max Increase to Keep City Skyline.md>)                                | java        | Jun 22, 2024    |
+|  861 | [Score After Flipping Matrix](<https://leetcode.com/problems/score-after-flipping-matrix>)                                                                         | Medium  |           | [solution](<../_861. Score After Flipping Matrix.md>)                                      | c, py       | Jun 10, 2024    |
 |  867 | [Transpose Matrix](<https://leetcode.com/problems/transpose-matrix>)                                                                                               | Easy    |           | [solution](<../_867. Transpose Matrix.md>)                                                 | py          | Jun 15, 2024    |
-|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                           | Easy    |           | [solution](<../_909. Snakes and Ladders.md>)                                               | py          | Jun 12, 2024    |
-|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                 | Easy    | N150      | [solution](<../_994. Rotting Oranges.md>)                                                  | py          | Jun 15, 2024    |
-| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                           | Easy    |           | [solution](<../_1020. Number of Enclaves.md>)                                              | py          | Jun 26, 2024    |
+|  909 | [Snakes and Ladders](<https://leetcode.com/problems/snakes-and-ladders>)                                                                                           | Medium  |           | [solution](<../_909. Snakes and Ladders.md>)                                               | py          | Jun 12, 2024    |
+|  994 | [Rotting Oranges](<https://leetcode.com/problems/rotting-oranges>)                                                                                                 | Medium  | N150      | [solution](<../_994. Rotting Oranges.md>)                                                  | py          | Jun 15, 2024    |
+| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                           | Medium  |           | [solution](<../_1020. Number of Enclaves.md>)                                              | py          | Jun 26, 2024    |
 | 1030 | [Matrix Cells in Distance Order](<https://leetcode.com/problems/matrix-cells-in-distance-order>)                                                                   | Easy    |           | [solution](<../_1030. Matrix Cells in Distance Order.md>)                                  | py          | Jun 04, 2024    |
-| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                               | Easy    |           | [solution](<../_1254. Number of Closed Islands.md>)                                        | py          | Jun 26, 2024    |
+| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                               | Medium  |           | [solution](<../_1254. Number of Closed Islands.md>)                                        | py          | Jun 26, 2024    |
 | 1284 | [Minimum Number of Flips to Convert Binary Matrix to Zero Matrix](<https://leetcode.com/problems/minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix>) | Hard    |           | [solution](<../_1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix.md>) | py          | Jun 09, 2024    |
 | 1351 | [Count Negative Numbers in a Sorted Matrix](<https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix>)                                             | Easy    |           | [solution](<../_1351. Count Negative Numbers in a Sorted Matrix.md>)                       | java, py    | Jun 01, 2024    |
 | 1380 | [Lucky Numbers in a Matrix](<https://leetcode.com/problems/lucky-numbers-in-a-matrix>)                                                                             | Easy    | Daily     | [solution](<../_1380. Lucky Numbers in a Matrix.md>)                                       | js, py      | Jul 19, 2024    |
-| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                         | Easy    | Daily     | [solution](<../_1605. Find Valid Matrix Given Row and Column Sums.md>)                     | py          | Jul 20, 2024    |
-| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                             | Easy    |           | [solution](<../_1730. Shortest Path to Get Food.md>)                                       | py          | Jun 26, 2024    |
-| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                             | Easy    |           | [solution](<../_1905. Count Sub Islands.md>)                                               | py          | Jun 24, 2024    |
-| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                         | Easy    |           | [solution](<../_1992. Find All Groups of Farmland.md>)                                     | java, py    | Jun 24, 2024    |
+| 1605 | [Find Valid Matrix Given Row and Column Sums](<https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums>)                                         | Medium  | Daily     | [solution](<../_1605. Find Valid Matrix Given Row and Column Sums.md>)                     | py          | Jul 20, 2024    |
+| 1730 | [Shortest Path to Get Food](<https://leetcode.com/problems/shortest-path-to-get-food>)                                                                             | Medium  |           | [solution](<../_1730. Shortest Path to Get Food.md>)                                       | py          | Jun 26, 2024    |
+| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                             | Medium  |           | [solution](<../_1905. Count Sub Islands.md>)                                               | py          | Jun 24, 2024    |
+| 1992 | [Find All Groups of Farmland](<https://leetcode.com/problems/find-all-groups-of-farmland>)                                                                         | Medium  |           | [solution](<../_1992. Find All Groups of Farmland.md>)                                     | java, py    | Jun 24, 2024    |
 | 2258 | [Escape the Spreading Fire](<https://leetcode.com/problems/escape-the-spreading-fire>)                                                                             | Hard    |           | [solution](<../_2258. Escape the Spreading Fire.md>)                                       | py          | Jun 15, 2024    |
-| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                           | Easy    |           | [solution](<../_2352. Equal Row and Column Pairs.md>)                                      | py          | Jun 27, 2024    |
-| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                         | Easy    |           | [solution](<../_2482. Difference Between Ones and Zeros in Row and Column.md>)             | py          | Jun 07, 2024    |
-| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                       | Easy    |           | [solution](<../_2545. Sort the Students by Their Kth Score.md>)                            | java, py    | Jun 24, 2024    |
-| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                 | Easy    |           | [solution](<../_2679. Sum in a Matrix.md>)                                                 | java        | May 22, 2024    |
-| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                   | Easy    | Contest   | [solution](<../_3195. Find the Minimum Area to Cover All Ones I.md>)                       | py          | Jul 07, 2024    |
-| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)   | Easy    | Contest   | [solution](<../_3212. Count Submatrices With Equal Frequency of X and Y.md>)               | py          | Jul 07, 2024    |
\ No newline at end of file
+| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                           | Medium  |           | [solution](<../_2352. Equal Row and Column Pairs.md>)                                      | py          | Jun 27, 2024    |
+| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                         | Medium  |           | [solution](<../_2482. Difference Between Ones and Zeros in Row and Column.md>)             | py          | Jun 07, 2024    |
+| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                       | Medium  |           | [solution](<../_2545. Sort the Students by Their Kth Score.md>)                            | java, py    | Jun 24, 2024    |
+| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                 | Medium  |           | [solution](<../_2679. Sum in a Matrix.md>)                                                 | java        | May 22, 2024    |
+| 3195 | Weekly Contest 403 - q2 - [Find the Minimum Area to Cover All Ones I](<https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-i>)                   | Medium  | Contest   | [solution](<../_3195. Find the Minimum Area to Cover All Ones I.md>)                       | py          | Jul 07, 2024    |
+| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)   | Medium  | Contest   | [solution](<../_3212. Count Submatrices With Equal Frequency of X and Y.md>)               | py          | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Monotonic Queue.md b/markdowns/by_topic/Monotonic Queue.md
index d8b7f9e7..d3f78c60 100644
--- a/markdowns/by_topic/Monotonic Queue.md	
+++ b/markdowns/by_topic/Monotonic Queue.md	
@@ -7,5 +7,5 @@
 |    # | Title                                                                                                                                                                                    | Level   | Cats   | Solution                                                                                              | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:------------------------------------------------------------------------------------------------------|:------------|:----------------|
 |  239 | [Sliding Window Maximum](<https://leetcode.com/problems/sliding-window-maximum>)                                                                                                         | Hard    | N150   | [solution](<../_239. Sliding Window Maximum.md>)                                                      | py          | Jun 04, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily  | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java        | Jun 24, 2024    |
-| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Easy    |        | [solution](<../_1696. Jump Game VI.md>)                                                               | java, py    | Jul 03, 2024    |
\ No newline at end of file
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily  | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java        | Jun 24, 2024    |
+| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Medium  |        | [solution](<../_1696. Jump Game VI.md>)                                                               | java, py    | Jul 03, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Monotonic Stack.md b/markdowns/by_topic/Monotonic Stack.md
index 91526ed3..74b22573 100644
--- a/markdowns/by_topic/Monotonic Stack.md	
+++ b/markdowns/by_topic/Monotonic Stack.md	
@@ -7,11 +7,11 @@
 |    # | Title                                                                                                                                        | Level   | Cats   | Solution                                                                        | Languages    | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:--------------------------------------------------------------------------------|:-------------|:----------------|
 |   84 | [Largest Rectangle in Histogram](<https://leetcode.com/problems/largest-rectangle-in-histogram>)                                             | Hard    | N150   | [solution](<../_84. Largest Rectangle in Histogram.md>)                         | py           | Jun 11, 2024    |
-|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                           | Easy    |        | [solution](<../_503. Next Greater Element II.md>)                               | py           | Jul 05, 2024    |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                   | Easy    |        | [solution](<../_654. Maximum Binary Tree.md>)                                   | py           | Jun 12, 2024    |
-|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                     | Easy    | N150   | [solution](<../_739. Daily Temperatures.md>)                                    | c, java, py  | Jun 13, 2024    |
-|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                       | Easy    | N150   | [solution](<../_853. Car Fleet.md>)                                             | py           | Jun 14, 2024    |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>) | Easy    |        | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>) | c, cpp, java | Jun 27, 2024    |
-| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                         | Easy    |        | [solution](<../_1019. Next Greater Node In Linked List.md>)                     | py           | Jun 22, 2024    |
-| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                 | Easy    |        | [solution](<../_1762. Buildings With an Ocean View.md>)                         | py           | Jun 10, 2024    |
-| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                               | Easy    |        | [solution](<../_2487. Remove Nodes From Linked List.md>)                        | py           | Jun 12, 2024    |
\ No newline at end of file
+|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                           | Medium  |        | [solution](<../_503. Next Greater Element II.md>)                               | py           | Jul 05, 2024    |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                   | Medium  |        | [solution](<../_654. Maximum Binary Tree.md>)                                   | py           | Jun 12, 2024    |
+|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                     | Medium  | N150   | [solution](<../_739. Daily Temperatures.md>)                                    | c, java, py  | Jun 13, 2024    |
+|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                       | Medium  | N150   | [solution](<../_853. Car Fleet.md>)                                             | py           | Jun 14, 2024    |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>) | Medium  |        | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>) | c, cpp, java | Jun 27, 2024    |
+| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                         | Medium  |        | [solution](<../_1019. Next Greater Node In Linked List.md>)                     | py           | Jun 22, 2024    |
+| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                 | Medium  |        | [solution](<../_1762. Buildings With an Ocean View.md>)                         | py           | Jun 10, 2024    |
+| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                               | Medium  |        | [solution](<../_2487. Remove Nodes From Linked List.md>)                        | py           | Jun 12, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Number Theory.md b/markdowns/by_topic/Number Theory.md
index 6cba64d2..96f3dbe0 100644
--- a/markdowns/by_topic/Number Theory.md	
+++ b/markdowns/by_topic/Number Theory.md	
@@ -6,4 +6,4 @@
 
 |    # | Title                                                                                                                            | Level   | Cats   | Solution                                                                  | Languages   | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:--------------------------------------------------------------------------|:------------|:----------------|
-| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>) | Easy    |        | [solution](<../_2807. Insert Greatest Common Divisors in Linked List.md>) | py          | Jun 13, 2024    |
\ No newline at end of file
+| 2807 | [Insert Greatest Common Divisors in Linked List](<https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list>) | Medium  |        | [solution](<../_2807. Insert Greatest Common Divisors in Linked List.md>) | py          | Jun 13, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Ordered Set.md b/markdowns/by_topic/Ordered Set.md
index 5b032340..abfe6a34 100644
--- a/markdowns/by_topic/Ordered Set.md	
+++ b/markdowns/by_topic/Ordered Set.md	
@@ -7,4 +7,4 @@
 |    # | Title                                                                                                                                                                                    | Level   | Cats   | Solution                                                                                              | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:------------------------------------------------------------------------------------------------------|:------------|:----------------|
 |  895 | [Maximum Frequency Stack](<https://leetcode.com/problems/maximum-frequency-stack>)                                                                                                       | Hard    |        | [solution](<../_895. Maximum Frequency Stack.md>)                                                     | java, py    | Jul 11, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily  | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java        | Jun 24, 2024    |
\ No newline at end of file
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily  | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java        | Jun 24, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Prefix Sum.md b/markdowns/by_topic/Prefix Sum.md
index 75b10945..152f67cc 100644
--- a/markdowns/by_topic/Prefix Sum.md	
+++ b/markdowns/by_topic/Prefix Sum.md	
@@ -6,15 +6,15 @@
 
 |    # | Title                                                                                                                                                              | Level   | Cats           | Solution                                                                                   | Languages   | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:-------------------------------------------------------------------------------------------|:------------|:----------------|
-|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                       | Easy    | B75, N150      | [solution](<../_238. Product of Array Except Self.md>)                                     | py          | Jun 13, 2024    |
-|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                 | Easy    | Daily          | [solution](<../_523. Continuous Subarray Sum.md>)                                          | py          | Jun 08, 2024    |
-|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                               | Easy    |                | [solution](<../_848. Shifting Letters.md>)                                                 | py          | Jun 29, 2024    |
-|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                             | Easy    |                | [solution](<../_930. Binary Subarrays With Sum.md>)                                        | py          | Jun 22, 2024    |
-|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                       | Easy    | Daily          | [solution](<../_974. Subarray Sums Divisible by K.md>)                                     | java, py    | Jun 09, 2024    |
+|  238 | [Product of Array Except Self](<https://leetcode.com/problems/product-of-array-except-self>)                                                                       | Medium  | B75, N150      | [solution](<../_238. Product of Array Except Self.md>)                                     | py          | Jun 13, 2024    |
+|  523 | [Continuous Subarray Sum](<https://leetcode.com/problems/continuous-subarray-sum>)                                                                                 | Medium  | Daily          | [solution](<../_523. Continuous Subarray Sum.md>)                                          | py          | Jun 08, 2024    |
+|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                               | Medium  |                | [solution](<../_848. Shifting Letters.md>)                                                 | py          | Jun 29, 2024    |
+|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                             | Medium  |                | [solution](<../_930. Binary Subarrays With Sum.md>)                                        | py          | Jun 22, 2024    |
+|  974 | [Subarray Sums Divisible by K](<https://leetcode.com/problems/subarray-sums-divisible-by-k>)                                                                       | Medium  | Daily          | [solution](<../_974. Subarray Sums Divisible by K.md>)                                     | java, py    | Jun 09, 2024    |
 |  995 | [Minimum Number of K Consecutive Bit Flips](<https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips>)                                             | Hard    | Daily          | [solution](<../_995. Minimum Number of K Consecutive Bit Flips.md>)                        | c, py       | Jun 24, 2024    |
-| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                       | Easy    | Daily          | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)            | py          | Jun 08, 2024    |
-| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                           | Easy    | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>)              | c, py       | Jun 10, 2024    |
+| 1442 | [Count Triplets That Can Form Two Arrays of Equal XOR](<https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor>)                       | Medium  | Daily          | [solution](<../_1442. Count Triplets That Can Form Two Arrays of Equal XOR.md>)            | py          | Jun 08, 2024    |
+| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                           | Medium  | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>)              | c, py       | Jun 10, 2024    |
 | 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                                       | Easy    |                | [solution](<../_2389. Longest Subsequence With Limited Sum.md>)                            | py          | Jun 01, 2024    |
-| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                               | Easy    | Contest        | [solution](<../_3179. Find the N-th Value After K Seconds.md>)                             | py          | Jul 07, 2024    |
-| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>) | Easy    |                | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>) | java        | Jun 22, 2024    |
-| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)   | Easy    | Contest        | [solution](<../_3212. Count Submatrices With Equal Frequency of X and Y.md>)               | py          | Jul 07, 2024    |
\ No newline at end of file
+| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                               | Medium  | Contest        | [solution](<../_3179. Find the N-th Value After K Seconds.md>)                             | py          | Jul 07, 2024    |
+| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>) | Medium  |                | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>) | java        | Jun 22, 2024    |
+| 3212 | Weekly Contest 405 - q3 - [Count Submatrices With Equal Frequency of X and Y](<https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y>)   | Medium  | Contest        | [solution](<../_3212. Count Submatrices With Equal Frequency of X and Y.md>)               | py          | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Queue.md b/markdowns/by_topic/Queue.md
index 3bb7689e..317adba6 100644
--- a/markdowns/by_topic/Queue.md
+++ b/markdowns/by_topic/Queue.md
@@ -7,13 +7,13 @@
 |    # | Title                                                                                                                                                                                    | Level   | Cats   | Solution                                                                                              | Languages            | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:------------------------------------------------------------------------------------------------------|:---------------------|:----------------|
 |  239 | [Sliding Window Maximum](<https://leetcode.com/problems/sliding-window-maximum>)                                                                                                         | Hard    | N150   | [solution](<../_239. Sliding Window Maximum.md>)                                                      | py                   | Jun 04, 2024    |
-|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Easy    |        | [solution](<../_341. Flatten Nested List Iterator.md>)                                                | java                 | Jul 02, 2024    |
-|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Easy    |        | [solution](<../_353. Design Snake Game.md>)                                                           | py                   | Jun 28, 2024    |
-|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Easy    |        | [solution](<../_622. Design Circular Queue.md>)                                                       | py                   | Jul 06, 2024    |
-|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Easy    |        | [solution](<../_950. Reveal Cards In Increasing Order.md>)                                            | py                   | Jun 12, 2024    |
+|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                                                             | Medium  |        | [solution](<../_341. Flatten Nested List Iterator.md>)                                                | java                 | Jul 02, 2024    |
+|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                                                   | Medium  |        | [solution](<../_353. Design Snake Game.md>)                                                           | py                   | Jun 28, 2024    |
+|  622 | [Design Circular Queue](<https://leetcode.com/problems/design-circular-queue>)                                                                                                           | Medium  |        | [solution](<../_622. Design Circular Queue.md>)                                                       | py                   | Jul 06, 2024    |
+|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                                     | Medium  |        | [solution](<../_950. Reveal Cards In Increasing Order.md>)                                            | py                   | Jun 12, 2024    |
 |  995 | [Minimum Number of K Consecutive Bit Flips](<https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips>)                                                                   | Hard    | Daily  | [solution](<../_995. Minimum Number of K Consecutive Bit Flips.md>)                                   | c, py                | Jun 24, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily  | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                 | Jun 24, 2024    |
-| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Easy    |        | [solution](<../_1696. Jump Game VI.md>)                                                               | java, py             | Jul 03, 2024    |
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily  | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java                 | Jun 24, 2024    |
+| 1696 | [Jump Game VI](<https://leetcode.com/problems/jump-game-vi>)                                                                                                                             | Medium  |        | [solution](<../_1696. Jump Game VI.md>)                                                               | java, py             | Jul 03, 2024    |
 | 1700 | [Number of Students Unable to Eat Lunch](<https://leetcode.com/problems/number-of-students-unable-to-eat-lunch>)                                                                         | Easy    |        | [solution](<../_1700. Number of Students Unable to Eat Lunch.md>)                                     | py                   | Jun 02, 2024    |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Easy    | Daily  | [solution](<../_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py | Jul 08, 2024    |
-| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Easy    |        | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                 | Jun 22, 2024    |
\ No newline at end of file
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                                             | Medium  | Daily  | [solution](<../_1823. Find the Winner of the Circular Game.md>)                                       | c, cpp, java, js, py | Jul 08, 2024    |
+| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Medium  |        | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java                 | Jun 22, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Quickselect.md b/markdowns/by_topic/Quickselect.md
index 37e9bee3..5b7094bc 100644
--- a/markdowns/by_topic/Quickselect.md
+++ b/markdowns/by_topic/Quickselect.md
@@ -6,5 +6,5 @@
 
 |   # | Title                                                                                    | Level   | Cats      | Solution                                             | Languages   | Date Complete   |
 |----:|:-----------------------------------------------------------------------------------------|:--------|:----------|:-----------------------------------------------------|:------------|:----------------|
-| 347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)       | Easy    | B75, N150 | [solution](<../_347. Top K Frequent Elements.md>)    | py          | Jun 13, 2024    |
-| 973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>) | Easy    | N150      | [solution](<../_973. K Closest Points to Origin.md>) | py          | Jun 29, 2024    |
\ No newline at end of file
+| 347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)       | Medium  | B75, N150 | [solution](<../_347. Top K Frequent Elements.md>)    | py          | Jun 13, 2024    |
+| 973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>) | Medium  | N150      | [solution](<../_973. K Closest Points to Origin.md>) | py          | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Randomized.md b/markdowns/by_topic/Randomized.md
index 1bab944a..a9839003 100644
--- a/markdowns/by_topic/Randomized.md
+++ b/markdowns/by_topic/Randomized.md
@@ -6,7 +6,7 @@
 
 |   # | Title                                                                                                                              | Level   | Cats   | Solution                                                                    | Languages   | Date Complete   |
 |----:|:-----------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:----------------------------------------------------------------------------|:------------|:----------------|
-| 380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                         | Easy    |        | [solution](<../_380. Insert Delete GetRandom O(1).md>)                      | java        | Jul 06, 2024    |
+| 380 | [Insert Delete GetRandom O(1)](<https://leetcode.com/problems/insert-delete-getrandom-o1>)                                         | Medium  |        | [solution](<../_380. Insert Delete GetRandom O(1).md>)                      | java        | Jul 06, 2024    |
 | 381 | [Insert Delete GetRandom O(1) - Duplicates allowed](<https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed>) | Hard    |        | [solution](<../_381. Insert Delete GetRandom O(1) - Duplicates allowed.md>) | java        | Jul 06, 2024    |
-| 382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                 | Easy    |        | [solution](<../_382. Linked List Random Node.md>)                           | c, java, py | Jun 22, 2024    |
-| 384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                               | Easy    |        | [solution](<../_384. Shuffle an Array.md>)                                  | py          | Jun 29, 2024    |
\ No newline at end of file
+| 382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>)                                                 | Medium  |        | [solution](<../_382. Linked List Random Node.md>)                           | c, java, py | Jun 22, 2024    |
+| 384 | [Shuffle an Array](<https://leetcode.com/problems/shuffle-an-array>)                                                               | Medium  |        | [solution](<../_384. Shuffle an Array.md>)                                  | py          | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Recursion.md b/markdowns/by_topic/Recursion.md
index 17e64971..43d42f6a 100644
--- a/markdowns/by_topic/Recursion.md
+++ b/markdowns/by_topic/Recursion.md
@@ -6,19 +6,19 @@
 
 |    # | Title                                                                                                                                                      | Level   | Cats           | Solution                                                                  | Languages            | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:--------------------------------------------------------------------------|:---------------------|:----------------|
-|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                         | Easy    | N150           | [solution](<../_2. Add Two Numbers.md>)                                   | java                 | May 22, 2024    |
+|    2 | [Add Two Numbers](<https://leetcode.com/problems/add-two-numbers>)                                                                                         | Medium  | N150           | [solution](<../_2. Add Two Numbers.md>)                                   | java                 | May 22, 2024    |
 |   21 | [Merge Two Sorted Lists](<https://leetcode.com/problems/merge-two-sorted-lists>)                                                                           | Easy    | B75, N150      | [solution](<../_21. Merge Two Sorted Lists.md>)                           | java                 | May 22, 2024    |
-|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                 | Easy    |                | [solution](<../_24. Swap Nodes in Pairs.md>)                              | c                    | Jun 07, 2024    |
+|   24 | [Swap Nodes in Pairs](<https://leetcode.com/problems/swap-nodes-in-pairs>)                                                                                 | Medium  |                | [solution](<../_24. Swap Nodes in Pairs.md>)                              | c                    | Jun 07, 2024    |
 |   25 | [Reverse Nodes in k-Group](<https://leetcode.com/problems/reverse-nodes-in-k-group>)                                                                       | Hard    | N150           | [solution](<../_25. Reverse Nodes in k-Group.md>)                         | c                    | Jun 07, 2024    |
-|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                        | Easy    | N150           | [solution](<../_50. Pow(x, n).md>)                                        | c, java, py          | Jun 23, 2024    |
-|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                               | Easy    | B75, N150      | [solution](<../_143. Reorder List.md>)                                    | java, py             | Jun 11, 2024    |
+|   50 | [Pow(x, n)](<https://leetcode.com/problems/powx-n>)                                                                                                        | Medium  | N150           | [solution](<../_50. Pow(x, n).md>)                                        | c, java, py          | Jun 23, 2024    |
+|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                               | Medium  | B75, N150      | [solution](<../_143. Reorder List.md>)                                    | java, py             | Jun 11, 2024    |
 |  206 | [Reverse Linked List](<https://leetcode.com/problems/reverse-linked-list>)                                                                                 | Easy    | B75, N150      | [solution](<../_206. Reverse Linked List.md>)                             | java                 | Jun 27, 2024    |
 |  224 | [Basic Calculator](<https://leetcode.com/problems/basic-calculator>)                                                                                       | Hard    |                | [solution](<../_224. Basic Calculator.md>)                                | py                   | Jun 10, 2024    |
 |  273 | [Integer to English Words](<https://leetcode.com/problems/integer-to-english-words>)                                                                       | Hard    |                | [solution](<../_273. Integer to English Words.md>)                        | py                   | Jun 11, 2024    |
-|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                             | Easy    |                | [solution](<../_394. Decode String.md>)                                   | py                   | Jun 15, 2024    |
+|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                             | Medium  |                | [solution](<../_394. Decode String.md>)                                   | py                   | Jun 15, 2024    |
 |  509 | [Fibonacci Number](<https://leetcode.com/problems/fibonacci-number>)                                                                                       | Easy    |                | [solution](<../_509. Fibonacci Number.md>)                                | c                    | Jun 17, 2024    |
-|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                     | Easy    | Weekly Premium | [solution](<../_776. Split BST.md>)                                       | py                   | Jun 29, 2024    |
-| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                           | Easy    |                | [solution](<../_1265. Print Immutable Linked List in Reverse.md>)         | c, py                | Jun 06, 2024    |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                               | Easy    | Daily          | [solution](<../_1823. Find the Winner of the Circular Game.md>)           | c, cpp, java, js, py | Jul 08, 2024    |
-| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                             | Easy    |                | [solution](<../_2487. Remove Nodes From Linked List.md>)                  | py                   | Jun 12, 2024    |
-| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>) | Easy    | Contest        | [solution](<../_3211. Generate Binary Strings Without Adjacent Zeros.md>) | js, py               | Jul 07, 2024    |
\ No newline at end of file
+|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                     | Medium  | Weekly Premium | [solution](<../_776. Split BST.md>)                                       | py                   | Jun 29, 2024    |
+| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                           | Medium  |                | [solution](<../_1265. Print Immutable Linked List in Reverse.md>)         | c, py                | Jun 06, 2024    |
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                               | Medium  | Daily          | [solution](<../_1823. Find the Winner of the Circular Game.md>)           | c, cpp, java, js, py | Jul 08, 2024    |
+| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                             | Medium  |                | [solution](<../_2487. Remove Nodes From Linked List.md>)                  | py                   | Jun 12, 2024    |
+| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>) | Medium  | Contest        | [solution](<../_3211. Generate Binary Strings Without Adjacent Zeros.md>) | js, py               | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Reservoir Sampling.md b/markdowns/by_topic/Reservoir Sampling.md
index c45b58f9..d8a46363 100644
--- a/markdowns/by_topic/Reservoir Sampling.md	
+++ b/markdowns/by_topic/Reservoir Sampling.md	
@@ -6,4 +6,4 @@
 
 |   # | Title                                                                              | Level   | Cats   | Solution                                          | Languages   | Date Complete   |
 |----:|:-----------------------------------------------------------------------------------|:--------|:-------|:--------------------------------------------------|:------------|:----------------|
-| 382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>) | Easy    |        | [solution](<../_382. Linked List Random Node.md>) | c, java, py | Jun 22, 2024    |
\ No newline at end of file
+| 382 | [Linked List Random Node](<https://leetcode.com/problems/linked-list-random-node>) | Medium  |        | [solution](<../_382. Linked List Random Node.md>) | c, java, py | Jun 22, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Rolling Hash.md b/markdowns/by_topic/Rolling Hash.md
index 18e1275d..34259f41 100644
--- a/markdowns/by_topic/Rolling Hash.md	
+++ b/markdowns/by_topic/Rolling Hash.md	
@@ -6,6 +6,6 @@
 
 |    # | Title                                                                                                                                          | Level   | Cats   | Solution                                                                         | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:---------------------------------------------------------------------------------|:------------|:----------------|
-| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>) | Easy    |        | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>) | py          | Jul 12, 2024    |
-| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                         | Easy    |        | [solution](<../_1698. Number of Distinct Substrings in a String.md>)             | java, py    | Jun 02, 2024    |
+| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>) | Medium  |        | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>) | py          | Jul 12, 2024    |
+| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                         | Medium  |        | [solution](<../_1698. Number of Distinct Substrings in a String.md>)             | java, py    | Jun 02, 2024    |
 | 3045 | [Count Prefix and Suffix Pairs II](<https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii>)                                           | Hard    |        | [solution](<../_3045. Count Prefix and Suffix Pairs II.md>)                      | py          | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Shortest Path.md b/markdowns/by_topic/Shortest Path.md
index 60082b15..11eac027 100644
--- a/markdowns/by_topic/Shortest Path.md	
+++ b/markdowns/by_topic/Shortest Path.md	
@@ -6,4 +6,4 @@
 
 |    # | Title                                                                                    | Level   | Cats   | Solution                                              | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------|:--------|:-------|:------------------------------------------------------|:------------|:----------------|
-| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>) | Easy    |        | [solution](<../_2473. Minimum Cost to Buy Apples.md>) | py          | Jun 29, 2024    |
\ No newline at end of file
+| 2473 | [Minimum Cost to Buy Apples](<https://leetcode.com/problems/minimum-cost-to-buy-apples>) | Medium  |        | [solution](<../_2473. Minimum Cost to Buy Apples.md>) | py          | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Simulation.md b/markdowns/by_topic/Simulation.md
index 0ab595ad..25d3c31e 100644
--- a/markdowns/by_topic/Simulation.md
+++ b/markdowns/by_topic/Simulation.md
@@ -6,35 +6,35 @@
 
 |    # | Title                                                                                                                                                        | Level   | Cats    | Solution                                                                       | Languages                    | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:--------|:-------------------------------------------------------------------------------|:-----------------------------|:----------------|
-|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                     | Easy    |         | [solution](<../_348. Design Tic-Tac-Toe.md>)                                   | py                           | Jul 05, 2024    |
-|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                       | Easy    |         | [solution](<../_353. Design Snake Game.md>)                                    | py                           | Jun 28, 2024    |
+|  348 | [Design Tic-Tac-Toe](<https://leetcode.com/problems/design-tic-tac-toe>)                                                                                     | Medium  |         | [solution](<../_348. Design Tic-Tac-Toe.md>)                                   | py                           | Jul 05, 2024    |
+|  353 | [Design Snake Game](<https://leetcode.com/problems/design-snake-game>)                                                                                       | Medium  |         | [solution](<../_353. Design Snake Game.md>)                                    | py                           | Jun 28, 2024    |
 |  412 | [Fizz Buzz](<https://leetcode.com/problems/fizz-buzz>)                                                                                                       | Easy    |         | [solution](<../_412. Fizz Buzz.md>)                                            | java, py                     | Jun 02, 2024    |
-|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                     | Easy    |         | [solution](<../_735. Asteroid Collision.md>)                                   | py                           | Jul 14, 2024    |
+|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                                     | Medium  |         | [solution](<../_735. Asteroid Collision.md>)                                   | py                           | Jul 14, 2024    |
 |  867 | [Transpose Matrix](<https://leetcode.com/problems/transpose-matrix>)                                                                                         | Easy    |         | [solution](<../_867. Transpose Matrix.md>)                                     | py                           | Jun 15, 2024    |
-|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                         | Easy    |         | [solution](<../_946. Validate Stack Sequences.md>)                             | c, py                        | Jun 12, 2024    |
-|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                         | Easy    |         | [solution](<../_950. Reveal Cards In Increasing Order.md>)                     | py                           | Jun 12, 2024    |
-| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                         | Easy    |         | [solution](<../_1006. Clumsy Factorial.md>)                                    | c, py                        | Jun 12, 2024    |
+|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                                         | Medium  |         | [solution](<../_946. Validate Stack Sequences.md>)                             | c, py                        | Jun 12, 2024    |
+|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                         | Medium  |         | [solution](<../_950. Reveal Cards In Increasing Order.md>)                     | py                           | Jun 12, 2024    |
+| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                                         | Medium  |         | [solution](<../_1006. Clumsy Factorial.md>)                                    | c, py                        | Jun 12, 2024    |
 | 1252 | [Cells with Odd Values in a Matrix](<https://leetcode.com/problems/cells-with-odd-values-in-a-matrix>)                                                       | Easy    |         | [solution](<../_1252. Cells with Odd Values in a Matrix.md>)                   | c                            | Jun 04, 2024    |
 | 1518 | [Water Bottles](<https://leetcode.com/problems/water-bottles>)                                                                                               | Easy    | Daily   | [solution](<../_1518. Water Bottles.md>)                                       | c, cpp, cs, java, js, py, ts | Jul 07, 2024    |
-| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                         | Easy    |         | [solution](<../_1535. Find the Winner of an Array Game.md>)                    | py                           | Jun 08, 2024    |
+| 1535 | [Find the Winner of an Array Game](<https://leetcode.com/problems/find-the-winner-of-an-array-game>)                                                         | Medium  |         | [solution](<../_1535. Find the Winner of an Array Game.md>)                    | py                           | Jun 08, 2024    |
 | 1700 | [Number of Students Unable to Eat Lunch](<https://leetcode.com/problems/number-of-students-unable-to-eat-lunch>)                                             | Easy    |         | [solution](<../_1700. Number of Students Unable to Eat Lunch.md>)              | py                           | Jun 02, 2024    |
-| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                 | Easy    | Daily   | [solution](<../_1701. Average Waiting Time.md>)                                | js, py                       | Jul 09, 2024    |
-| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                 | Easy    | Daily   | [solution](<../_1823. Find the Winner of the Circular Game.md>)                | c, cpp, java, js, py         | Jul 08, 2024    |
+| 1701 | [Average Waiting Time](<https://leetcode.com/problems/average-waiting-time>)                                                                                 | Medium  | Daily   | [solution](<../_1701. Average Waiting Time.md>)                                | js, py                       | Jul 09, 2024    |
+| 1823 | [Find the Winner of the Circular Game](<https://leetcode.com/problems/find-the-winner-of-the-circular-game>)                                                 | Medium  | Daily   | [solution](<../_1823. Find the Winner of the Circular Game.md>)                | c, cpp, java, js, py         | Jul 08, 2024    |
 | 1929 | [Concatenation of Array](<https://leetcode.com/problems/concatenation-of-array>)                                                                             | Easy    |         | [solution](<../_1929. Concatenation of Array.md>)                              | c, java, py                  | Jun 03, 2024    |
 | 2011 | [Final Value of Variable After Performing Operations](<https://leetcode.com/problems/final-value-of-variable-after-performing-operations>)                   | Easy    |         | [solution](<../_2011. Final Value of Variable After Performing Operations.md>) | c                            | Jun 03, 2024    |
-| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                         | Easy    |         | [solution](<../_2149. Rearrange Array Elements by Sign.md>)                    | c, py                        | Jun 10, 2024    |
-| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                 | Easy    | Daily   | [solution](<../_2181. Merge Nodes in Between Zeros.md>)                        | c, cpp, java, py             | Jul 04, 2024    |
-| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                     | Easy    |         | [solution](<../_2211. Count Collisions on a Road.md>)                          | py                           | Jul 14, 2024    |
-| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                           | Easy    |         | [solution](<../_2221. Find Triangular Sum of an Array.md>)                     | c, java                      | Jun 27, 2024    |
-| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                     | Easy    |         | [solution](<../_2352. Equal Row and Column Pairs.md>)                          | py                           | Jun 27, 2024    |
-| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                       | Easy    |         | [solution](<../_2365. Task Scheduler II.md>)                                   | py                           | Jun 29, 2024    |
-| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                 | Easy    |         | [solution](<../_2390. Removing Stars From a String.md>)                        | java, py                     | Jun 02, 2024    |
-| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                   | Easy    |         | [solution](<../_2482. Difference Between Ones and Zeros in Row and Column.md>) | py                           | Jun 07, 2024    |
+| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                         | Medium  |         | [solution](<../_2149. Rearrange Array Elements by Sign.md>)                    | c, py                        | Jun 10, 2024    |
+| 2181 | [Merge Nodes in Between Zeros](<https://leetcode.com/problems/merge-nodes-in-between-zeros>)                                                                 | Medium  | Daily   | [solution](<../_2181. Merge Nodes in Between Zeros.md>)                        | c, cpp, java, py             | Jul 04, 2024    |
+| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                     | Medium  |         | [solution](<../_2211. Count Collisions on a Road.md>)                          | py                           | Jul 14, 2024    |
+| 2221 | [Find Triangular Sum of an Array](<https://leetcode.com/problems/find-triangular-sum-of-an-array>)                                                           | Medium  |         | [solution](<../_2221. Find Triangular Sum of an Array.md>)                     | c, java                      | Jun 27, 2024    |
+| 2352 | [Equal Row and Column Pairs](<https://leetcode.com/problems/equal-row-and-column-pairs>)                                                                     | Medium  |         | [solution](<../_2352. Equal Row and Column Pairs.md>)                          | py                           | Jun 27, 2024    |
+| 2365 | [Task Scheduler II](<https://leetcode.com/problems/task-scheduler-ii>)                                                                                       | Medium  |         | [solution](<../_2365. Task Scheduler II.md>)                                   | py                           | Jun 29, 2024    |
+| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                 | Medium  |         | [solution](<../_2390. Removing Stars From a String.md>)                        | java, py                     | Jun 02, 2024    |
+| 2482 | [Difference Between Ones and Zeros in Row and Column](<https://leetcode.com/problems/difference-between-ones-and-zeros-in-row-and-column>)                   | Medium  |         | [solution](<../_2482. Difference Between Ones and Zeros in Row and Column.md>) | py                           | Jun 07, 2024    |
 | 2582 | [Pass the Pillow](<https://leetcode.com/problems/pass-the-pillow>)                                                                                           | Easy    | Daily   | [solution](<../_2582. Pass the Pillow.md>)                                     | c, cpp, cs, java, js, py     | Jul 06, 2024    |
-| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                           | Easy    |         | [solution](<../_2679. Sum in a Matrix.md>)                                     | java                         | May 22, 2024    |
+| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                           | Medium  |         | [solution](<../_2679. Sum in a Matrix.md>)                                     | java                         | May 22, 2024    |
 | 2751 | [Robot Collisions](<https://leetcode.com/problems/robot-collisions>)                                                                                         | Hard    | Daily   | [solution](<../_2751. Robot Collisions.md>)                                    | py                           | Jul 13, 2024    |
 | 3168 | Weekly Contest 400 - q1 - [Minimum Number of Chairs in a Waiting Room](<https://leetcode.com/problems/minimum-number-of-chairs-in-a-waiting-room>)           | Easy    | Contest | [solution](<../_3168. Minimum Number of Chairs in a Waiting Room.md>)          | py                           | Jul 07, 2024    |
 | 3174 | Biweekly Contest 132 - q1 - [Clear Digits](<https://leetcode.com/problems/clear-digits>)                                                                     | Easy    | Contest | [solution](<../_3174. Clear Digits.md>)                                        | py                           | Jul 07, 2024    |
-| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)   | Easy    | Contest | [solution](<../_3175. Find The First Player to win K Games in a Row.md>)       | py                           | Jul 07, 2024    |
+| 3175 | Biweekly Contest 132 - q2 - [Find The First Player to win K Games in a Row](<https://leetcode.com/problems/find-the-first-player-to-win-k-games-in-a-row>)   | Medium  | Contest | [solution](<../_3175. Find The First Player to win K Games in a Row.md>)       | py                           | Jul 07, 2024    |
 | 3178 | Weekly Contest 401 - q1 - [Find the Child Who Has the Ball After K Seconds](<https://leetcode.com/problems/find-the-child-who-has-the-ball-after-k-seconds>) | Easy    | Contest | [solution](<../_3178. Find the Child Who Has the Ball After K Seconds.md>)     | py                           | Jul 07, 2024    |
-| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                         | Easy    | Contest | [solution](<../_3179. Find the N-th Value After K Seconds.md>)                 | py                           | Jul 07, 2024    |
\ No newline at end of file
+| 3179 | Weekly Contest 401 - q2 - [Find the N-th Value After K Seconds](<https://leetcode.com/problems/find-the-n-th-value-after-k-seconds>)                         | Medium  | Contest | [solution](<../_3179. Find the N-th Value After K Seconds.md>)                 | py                           | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Sliding Window.md b/markdowns/by_topic/Sliding Window.md
index f56a1e27..f2f1213c 100644
--- a/markdowns/by_topic/Sliding Window.md	
+++ b/markdowns/by_topic/Sliding Window.md	
@@ -6,16 +6,16 @@
 
 |    # | Title                                                                                                                                                                                    | Level   | Cats           | Solution                                                                                              | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:------------------------------------------------------------------------------------------------------|:------------|:----------------|
-|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Easy    | B75, N150      | [solution](<../_3. Longest Substring Without Repeating Characters.md>)                                | java        | May 22, 2024    |
+|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                                         | Medium  | B75, N150      | [solution](<../_3. Longest Substring Without Repeating Characters.md>)                                | java        | May 22, 2024    |
 |  239 | [Sliding Window Maximum](<https://leetcode.com/problems/sliding-window-maximum>)                                                                                                         | Hard    | N150           | [solution](<../_239. Sliding Window Maximum.md>)                                                      | py          | Jun 04, 2024    |
-|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Easy    | B75, N150      | [solution](<../_424. Longest Repeating Character Replacement.md>)                                     | py          | Jul 06, 2024    |
-|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Easy    | N150           | [solution](<../_567. Permutation in String.md>)                                                       | py          | Jul 06, 2024    |
-|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Easy    |                | [solution](<../_713. Subarray Product Less Than K.md>)                                                | py          | Jul 01, 2024    |
-|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Easy    |                | [solution](<../_930. Binary Subarrays With Sum.md>)                                                   | py          | Jun 22, 2024    |
+|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                                       | Medium  | B75, N150      | [solution](<../_424. Longest Repeating Character Replacement.md>)                                     | py          | Jul 06, 2024    |
+|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                                           | Medium  | N150           | [solution](<../_567. Permutation in String.md>)                                                       | py          | Jul 06, 2024    |
+|  713 | [Subarray Product Less Than K](<https://leetcode.com/problems/subarray-product-less-than-k>)                                                                                             | Medium  |                | [solution](<../_713. Subarray Product Less Than K.md>)                                                | py          | Jul 01, 2024    |
+|  930 | [Binary Subarrays With Sum](<https://leetcode.com/problems/binary-subarrays-with-sum>)                                                                                                   | Medium  |                | [solution](<../_930. Binary Subarrays With Sum.md>)                                                   | py          | Jun 22, 2024    |
 |  995 | [Minimum Number of K Consecutive Bit Flips](<https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips>)                                                                   | Hard    | Daily          | [solution](<../_995. Minimum Number of K Consecutive Bit Flips.md>)                                   | c, py       | Jun 24, 2024    |
-| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Easy    | Daily          | [solution](<../_1052. Grumpy Bookstore Owner.md>)                                                     | py          | Jun 24, 2024    |
-| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Easy    | Daily          | [solution](<../_1248. Count Number of Nice Subarrays.md>)                                             | py          | Jun 22, 2024    |
-| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Easy    | Daily          | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java        | Jun 24, 2024    |
-| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Easy    |                | [solution](<../_1852. Distinct Numbers in Each Subarray.md>)                                          | java        | Jun 27, 2024    |
-| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Easy    | Weekly Premium | [solution](<../_2743. Count Substrings Without Repeating Character.md>)                               | java, py    | Jun 22, 2024    |
-| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Easy    |                | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java        | Jun 22, 2024    |
\ No newline at end of file
+| 1052 | [Grumpy Bookstore Owner](<https://leetcode.com/problems/grumpy-bookstore-owner>)                                                                                                         | Medium  | Daily          | [solution](<../_1052. Grumpy Bookstore Owner.md>)                                                     | py          | Jun 24, 2024    |
+| 1248 | [Count Number of Nice Subarrays](<https://leetcode.com/problems/count-number-of-nice-subarrays>)                                                                                         | Medium  | Daily          | [solution](<../_1248. Count Number of Nice Subarrays.md>)                                             | py          | Jun 22, 2024    |
+| 1438 | [Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit](<https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit>) | Medium  | Daily          | [solution](<../_1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit.md>) | java        | Jun 24, 2024    |
+| 1852 | [Distinct Numbers in Each Subarray](<https://leetcode.com/problems/distinct-numbers-in-each-subarray>)                                                                                   | Medium  |                | [solution](<../_1852. Distinct Numbers in Each Subarray.md>)                                          | java        | Jun 27, 2024    |
+| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                                             | Medium  | Weekly Premium | [solution](<../_2743. Count Substrings Without Repeating Character.md>)                               | java, py    | Jun 22, 2024    |
+| 3191 | [Minimum Operations to Make Binary Array Elements Equal to One I](<https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i>)                       | Medium  |                | [solution](<../_3191. Minimum Operations to Make Binary Array Elements Equal to One I.md>)            | java        | Jun 22, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Sorting.md b/markdowns/by_topic/Sorting.md
index 187d426f..da5ce4c8 100644
--- a/markdowns/by_topic/Sorting.md
+++ b/markdowns/by_topic/Sorting.md
@@ -6,63 +6,63 @@
 
 |    # | Title                                                                                                                                                                        | Level   | Cats           | Solution                                                                                        | Languages        | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:------------------------------------------------------------------------------------------------|:-----------------|:----------------|
-|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                             | Easy    | B75, N150      | [solution](<../_49. Group Anagrams.md>)                                                         | py               | Jun 13, 2024    |
-|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                           | Easy    | B75, N150      | [solution](<../_56. Merge Intervals.md>)                                                        | py               | Jun 19, 2024    |
-|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                   | Easy    | Daily          | [solution](<../_75. Sort Colors.md>)                                                            | c, py            | Jun 12, 2024    |
+|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                             | Medium  | B75, N150      | [solution](<../_49. Group Anagrams.md>)                                                         | py               | Jun 13, 2024    |
+|   56 | [Merge Intervals](<https://leetcode.com/problems/merge-intervals>)                                                                                                           | Medium  | B75, N150      | [solution](<../_56. Merge Intervals.md>)                                                        | py               | Jun 19, 2024    |
+|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                                   | Medium  | Daily          | [solution](<../_75. Sort Colors.md>)                                                            | c, py            | Jun 12, 2024    |
 |  217 | [Contains Duplicate](<https://leetcode.com/problems/contains-duplicate>)                                                                                                     | Easy    | B75, N150      | [solution](<../_217. Contains Duplicate.md>)                                                    | py               | Jun 12, 2024    |
 |  242 | [Valid Anagram](<https://leetcode.com/problems/valid-anagram>)                                                                                                               | Easy    | B75, N150      | [solution](<../_242. Valid Anagram.md>)                                                         | c, py            | Jun 13, 2024    |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                 | Easy    |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                                  | py               | Jun 12, 2024    |
-|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                           | Easy    | B75, N150      | [solution](<../_347. Top K Frequent Elements.md>)                                               | py               | Jun 13, 2024    |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                                                 | Medium  |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                                  | py               | Jun 12, 2024    |
+|  347 | [Top K Frequent Elements](<https://leetcode.com/problems/top-k-frequent-elements>)                                                                                           | Medium  | B75, N150      | [solution](<../_347. Top K Frequent Elements.md>)                                               | py               | Jun 13, 2024    |
 |  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                               | Easy    | Daily          | [solution](<../_350. Intersection of Two Arrays II.md>)                                         | java, py         | Jul 02, 2024    |
 |  414 | [Third Maximum Number](<https://leetcode.com/problems/third-maximum-number>)                                                                                                 | Easy    |                | [solution](<../_414. Third Maximum Number.md>)                                                  | py               | May 23, 2024    |
-|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                 | Easy    |                | [solution](<../_451. Sort Characters By Frequency.md>)                                          | py               | Jun 18, 2024    |
-|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                           | Easy    |                | [solution](<../_475. Heaters.md>)                                                               | py               | Jun 07, 2024    |
+|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                                 | Medium  |                | [solution](<../_451. Sort Characters By Frequency.md>)                                          | py               | Jun 18, 2024    |
+|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                                           | Medium  |                | [solution](<../_475. Heaters.md>)                                                               | py               | Jun 07, 2024    |
 |  502 | [IPO](<https://leetcode.com/problems/ipo>)                                                                                                                                   | Hard    | Daily          | [solution](<../_502. IPO.md>)                                                                   | py               | Jun 15, 2024    |
-|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                               | Easy    |                | [solution](<../_611. Valid Triangle Number.md>)                                                 | py               | May 22, 2024    |
+|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                               | Medium  |                | [solution](<../_611. Valid Triangle Number.md>)                                                 | py               | May 22, 2024    |
 |  645 | [Set Mismatch](<https://leetcode.com/problems/set-mismatch>)                                                                                                                 | Easy    |                | [solution](<../_645. Set Mismatch.md>)                                                          | java, py         | Jun 01, 2024    |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                 | Easy    |                | [solution](<../_692. Top K Frequent Words.md>)                                                  | py               | Jun 09, 2024    |
-|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                     | Easy    |                | [solution](<../_720. Longest Word in Dictionary.md>)                                            | py               | Jun 27, 2024    |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                                 | Medium  |                | [solution](<../_692. Top K Frequent Words.md>)                                                  | py               | Jun 09, 2024    |
+|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                     | Medium  |                | [solution](<../_720. Longest Word in Dictionary.md>)                                            | py               | Jun 27, 2024    |
 |  726 | [Number of Atoms](<https://leetcode.com/problems/number-of-atoms>)                                                                                                           | Hard    | Daily          | [solution](<../_726. Number of Atoms.md>)                                                       | py               | Jul 14, 2024    |
-|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                     | Easy    |                | [solution](<../_791. Custom Sort String.md>)                                                    | java             | Jun 24, 2024    |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                     | Easy    | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                                            | py               | Jun 18, 2024    |
-|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                       | Easy    | Daily, N150    | [solution](<../_846. Hand of Straights.md>)                                                     | py               | Jun 06, 2024    |
-|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                       | Easy    | N150           | [solution](<../_853. Car Fleet.md>)                                                             | py               | Jun 14, 2024    |
-|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                             | Easy    | Daily          | [solution](<../_945. Minimum Increment to Make Array Unique.md>)                                | py               | Jun 14, 2024    |
-|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                         | Easy    |                | [solution](<../_950. Reveal Cards In Increasing Order.md>)                                      | py               | Jun 12, 2024    |
-|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                     | Easy    | N150           | [solution](<../_973. K Closest Points to Origin.md>)                                            | py               | Jun 29, 2024    |
+|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                     | Medium  |                | [solution](<../_791. Custom Sort String.md>)                                                    | java             | Jun 24, 2024    |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                                     | Medium  | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                                            | py               | Jun 18, 2024    |
+|  846 | [Hand of Straights](<https://leetcode.com/problems/hand-of-straights>)                                                                                                       | Medium  | Daily, N150    | [solution](<../_846. Hand of Straights.md>)                                                     | py               | Jun 06, 2024    |
+|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                                                       | Medium  | N150           | [solution](<../_853. Car Fleet.md>)                                                             | py               | Jun 14, 2024    |
+|  945 | [Minimum Increment to Make Array Unique](<https://leetcode.com/problems/minimum-increment-to-make-array-unique>)                                                             | Medium  | Daily          | [solution](<../_945. Minimum Increment to Make Array Unique.md>)                                | py               | Jun 14, 2024    |
+|  950 | [Reveal Cards In Increasing Order](<https://leetcode.com/problems/reveal-cards-in-increasing-order>)                                                                         | Medium  |                | [solution](<../_950. Reveal Cards In Increasing Order.md>)                                      | py               | Jun 12, 2024    |
+|  973 | [K Closest Points to Origin](<https://leetcode.com/problems/k-closest-points-to-origin>)                                                                                     | Medium  | N150           | [solution](<../_973. K Closest Points to Origin.md>)                                            | py               | Jun 29, 2024    |
 |  977 | [Squares of a Sorted Array](<https://leetcode.com/problems/squares-of-a-sorted-array>)                                                                                       | Easy    |                | [solution](<../_977. Squares of a Sorted Array.md>)                                             | py               | Jun 21, 2024    |
 |  987 | [Vertical Order Traversal of a Binary Tree](<https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree>)                                                       | Hard    |                | [solution](<../_987. Vertical Order Traversal of a Binary Tree.md>)                             | py               | Jun 12, 2024    |
 | 1030 | [Matrix Cells in Distance Order](<https://leetcode.com/problems/matrix-cells-in-distance-order>)                                                                             | Easy    |                | [solution](<../_1030. Matrix Cells in Distance Order.md>)                                       | py               | Jun 04, 2024    |
 | 1051 | [Height Checker](<https://leetcode.com/problems/height-checker>)                                                                                                             | Easy    | Daily          | [solution](<../_1051. Height Checker.md>)                                                       | c, py            | Jun 10, 2024    |
-| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                         | Easy    | Weekly Premium | [solution](<../_1101. The Earliest Moment When Everyone Become Friends.md>)                     | py               | Jul 04, 2024    |
+| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                                         | Medium  | Weekly Premium | [solution](<../_1101. The Earliest Moment When Everyone Become Friends.md>)                     | py               | Jul 04, 2024    |
 | 1122 | [Relative Sort Array](<https://leetcode.com/problems/relative-sort-array>)                                                                                                   | Easy    | Daily          | [solution](<../_1122. Relative Sort Array.md>)                                                  | java, py         | Jun 11, 2024    |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                       | Easy    |                | [solution](<../_1268. Search Suggestions System.md>)                                            | py               | Jun 29, 2024    |
-| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                           | Easy    |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                              | java             | Jun 24, 2024    |
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                       | Medium  |                | [solution](<../_1268. Search Suggestions System.md>)                                            | py               | Jun 29, 2024    |
+| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                                           | Medium  |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                              | java             | Jun 24, 2024    |
 | 1460 | [Make Two Arrays Equal by Reversing Subarrays](<https://leetcode.com/problems/make-two-arrays-equal-by-reversing-subarrays>)                                                 | Easy    |                | [solution](<../_1460. Make Two Arrays Equal by Reversing Subarrays.md>)                         | c                | Jun 04, 2024    |
-| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                         | Easy    |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)                     | py               | Jun 15, 2024    |
+| 1481 | [Least Number of Unique Integers after K Removals](<https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals>)                                         | Medium  |                | [solution](<../_1481. Least Number of Unique Integers after K Removals.md>)                     | py               | Jun 15, 2024    |
 | 1502 | [Can Make Arithmetic Progression From Sequence](<https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence>)                                               | Easy    |                | [solution](<../_1502. Can Make Arithmetic Progression From Sequence.md>)                        | c, py            | Jun 04, 2024    |
-| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>) | Easy    | Daily          | [solution](<../_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>) | c, cpp, java, py | Jul 03, 2024    |
-| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                         | Easy    | Daily          | [solution](<../_1552. Magnetic Force Between Two Balls.md>)                                     | py               | Jun 20, 2024    |
-| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                   | Easy    |                | [solution](<../_1561. Maximum Number of Coins You Can Get.md>)                                  | py               | Jun 23, 2024    |
-| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                             | Easy    |                | [solution](<../_1564. Put Boxes Into the Warehouse I.md>)                                       | py               | Jun 15, 2024    |
-| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                           | Easy    | Weekly Premium | [solution](<../_1580. Put Boxes Into the Warehouse II.md>)                                      | py               | Jun 15, 2024    |
-| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                     | Easy    |                | [solution](<../_1657. Determine if Two Strings Are Close.md>)                                   | py               | Jul 13, 2024    |
-| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                             | Easy    |                | [solution](<../_1833. Maximum Ice Cream Bars.md>)                                               | c, java, py      | Jun 23, 2024    |
-| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                     | Easy    |                | [solution](<../_1874. Minimize Product Sum of Two Arrays.md>)                                   | c, java          | Jun 22, 2024    |
-| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                     | Easy    |                | [solution](<../_1877. Minimize Maximum Pair Sum in Array.md>)                                   | py               | Jun 23, 2024    |
-| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                       | Easy    | Weekly Premium | [solution](<../_1885. Count Pairs in Two Arrays.md>)                                            | py               | Jun 08, 2024    |
+| 1509 | [Minimum Difference Between Largest and Smallest Value in Three Moves](<https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves>) | Medium  | Daily          | [solution](<../_1509. Minimum Difference Between Largest and Smallest Value in Three Moves.md>) | c, cpp, java, py | Jul 03, 2024    |
+| 1552 | [Magnetic Force Between Two Balls](<https://leetcode.com/problems/magnetic-force-between-two-balls>)                                                                         | Medium  | Daily          | [solution](<../_1552. Magnetic Force Between Two Balls.md>)                                     | py               | Jun 20, 2024    |
+| 1561 | [Maximum Number of Coins You Can Get](<https://leetcode.com/problems/maximum-number-of-coins-you-can-get>)                                                                   | Medium  |                | [solution](<../_1561. Maximum Number of Coins You Can Get.md>)                                  | py               | Jun 23, 2024    |
+| 1564 | [Put Boxes Into the Warehouse I](<https://leetcode.com/problems/put-boxes-into-the-warehouse-i>)                                                                             | Medium  |                | [solution](<../_1564. Put Boxes Into the Warehouse I.md>)                                       | py               | Jun 15, 2024    |
+| 1580 | [Put Boxes Into the Warehouse II](<https://leetcode.com/problems/put-boxes-into-the-warehouse-ii>)                                                                           | Medium  | Weekly Premium | [solution](<../_1580. Put Boxes Into the Warehouse II.md>)                                      | py               | Jun 15, 2024    |
+| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                     | Medium  |                | [solution](<../_1657. Determine if Two Strings Are Close.md>)                                   | py               | Jul 13, 2024    |
+| 1833 | [Maximum Ice Cream Bars](<https://leetcode.com/problems/maximum-ice-cream-bars>)                                                                                             | Medium  |                | [solution](<../_1833. Maximum Ice Cream Bars.md>)                                               | c, java, py      | Jun 23, 2024    |
+| 1874 | [Minimize Product Sum of Two Arrays](<https://leetcode.com/problems/minimize-product-sum-of-two-arrays>)                                                                     | Medium  |                | [solution](<../_1874. Minimize Product Sum of Two Arrays.md>)                                   | c, java          | Jun 22, 2024    |
+| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                                     | Medium  |                | [solution](<../_1877. Minimize Maximum Pair Sum in Array.md>)                                   | py               | Jun 23, 2024    |
+| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                                       | Medium  | Weekly Premium | [solution](<../_1885. Count Pairs in Two Arrays.md>)                                            | py               | Jun 08, 2024    |
 | 2037 | [Minimum Number of Moves to Seat Everyone](<https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone>)                                                         | Easy    | Daily          | [solution](<../_2037. Minimum Number of Moves to Seat Everyone.md>)                             | c, py            | Jun 03, 2024    |
-| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                               | Easy    |                | [solution](<../_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                | py               | Jul 04, 2024    |
-| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                           | Easy    |                | [solution](<../_2165. Smallest Value of the Rearranged Number.md>)                              | py               | Jul 01, 2024    |
-| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                 | Easy    |                | [solution](<../_2225. Find Players With Zero or One Losses.md>)                                 | java             | Jun 24, 2024    |
+| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                               | Medium  |                | [solution](<../_2046. Sort Linked List Already Sorted Using Absolute Values.md>)                | py               | Jul 04, 2024    |
+| 2165 | [Smallest Value of the Rearranged Number](<https://leetcode.com/problems/smallest-value-of-the-rearranged-number>)                                                           | Medium  |                | [solution](<../_2165. Smallest Value of the Rearranged Number.md>)                              | py               | Jul 01, 2024    |
+| 2225 | [Find Players With Zero or One Losses](<https://leetcode.com/problems/find-players-with-zero-or-one-losses>)                                                                 | Medium  |                | [solution](<../_2225. Find Players With Zero or One Losses.md>)                                 | java             | Jun 24, 2024    |
 | 2248 | [Intersection of Multiple Arrays](<https://leetcode.com/problems/intersection-of-multiple-arrays>)                                                                           | Easy    |                | [solution](<../_2248. Intersection of Multiple Arrays.md>)                                      | py               | May 31, 2024    |
-| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                 | Easy    |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                                         | py               | Jul 05, 2024    |
-| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                       | Easy    | Daily          | [solution](<../_2285. Maximum Total Importance of Roads.md>)                                    | c, cpp, java, py | Jun 28, 2024    |
+| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                                 | Medium  |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                                         | py               | Jul 05, 2024    |
+| 2285 | [Maximum Total Importance of Roads](<https://leetcode.com/problems/maximum-total-importance-of-roads>)                                                                       | Medium  | Daily          | [solution](<../_2285. Maximum Total Importance of Roads.md>)                                    | c, cpp, java, py | Jun 28, 2024    |
 | 2389 | [Longest Subsequence With Limited Sum](<https://leetcode.com/problems/longest-subsequence-with-limited-sum>)                                                                 | Easy    |                | [solution](<../_2389. Longest Subsequence With Limited Sum.md>)                                 | py               | Jun 01, 2024    |
-| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                 | Easy    |                | [solution](<../_2545. Sort the Students by Their Kth Score.md>)                                 | java, py         | Jun 24, 2024    |
-| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                           | Easy    |                | [solution](<../_2679. Sum in a Matrix.md>)                                                      | java             | May 22, 2024    |
+| 2545 | [Sort the Students by Their Kth Score](<https://leetcode.com/problems/sort-the-students-by-their-kth-score>)                                                                 | Medium  |                | [solution](<../_2545. Sort the Students by Their Kth Score.md>)                                 | java, py         | Jun 24, 2024    |
+| 2679 | [Sum in a Matrix](<https://leetcode.com/problems/sum-in-a-matrix>)                                                                                                           | Medium  |                | [solution](<../_2679. Sum in a Matrix.md>)                                                      | java             | May 22, 2024    |
 | 2751 | [Robot Collisions](<https://leetcode.com/problems/robot-collisions>)                                                                                                         | Hard    | Daily          | [solution](<../_2751. Robot Collisions.md>)                                                     | py               | Jul 13, 2024    |
 | 3074 | [Apple Redistribution into Boxes](<https://leetcode.com/problems/apple-redistribution-into-boxes>)                                                                           | Easy    |                | [solution](<../_3074. Apple Redistribution into Boxes.md>)                                      | py               | May 23, 2024    |
-| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                         | Easy    | Contest        | [solution](<../_3169. Count Days Without Meetings.md>)                                          | py               | Jul 07, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                 | Easy    | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                              | py               | Jul 07, 2024    |
+| 3169 | Weekly Contest 400 - q2 - [Count Days Without Meetings](<https://leetcode.com/problems/count-days-without-meetings>)                                                         | Medium  | Contest        | [solution](<../_3169. Count Days Without Meetings.md>)                                          | py               | Jul 07, 2024    |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                                 | Medium  | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                              | py               | Jul 07, 2024    |
 | 3194 | Weekly Contest 403 - q1 - [Minimum Average of Smallest and Largest Elements](<https://leetcode.com/problems/minimum-average-of-smallest-and-largest-elements>)               | Easy    | Contest        | [solution](<../_3194. Minimum Average of Smallest and Largest Elements.md>)                     | py               | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Stack.md b/markdowns/by_topic/Stack.md
index 65a31843..225749e1 100644
--- a/markdowns/by_topic/Stack.md
+++ b/markdowns/by_topic/Stack.md
@@ -7,47 +7,47 @@
 |    # | Title                                                                                                                                              | Level   | Cats      | Solution                                                                          | Languages    | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:----------------------------------------------------------------------------------|:-------------|:----------------|
 |   20 | [Valid Parentheses](<https://leetcode.com/problems/valid-parentheses>)                                                                             | Easy    | B75, N150 | [solution](<../_20. Valid Parentheses.md>)                                        | java         | May 22, 2024    |
-|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                     | Easy    |           | [solution](<../_71. Simplify Path.md>)                                            | py           | Jun 11, 2024    |
+|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                     | Medium  |           | [solution](<../_71. Simplify Path.md>)                                            | py           | Jun 11, 2024    |
 |   84 | [Largest Rectangle in Histogram](<https://leetcode.com/problems/largest-rectangle-in-histogram>)                                                   | Hard    | N150      | [solution](<../_84. Largest Rectangle in Histogram.md>)                           | py           | Jun 11, 2024    |
 |   94 | [Binary Tree Inorder Traversal](<https://leetcode.com/problems/binary-tree-inorder-traversal>)                                                     | Easy    |           | [solution](<../_94. Binary Tree Inorder Traversal.md>)                            | java, py     | Jun 29, 2024    |
-|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                           | Easy    |           | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                      | c, py        | Jun 11, 2024    |
-|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                       | Easy    | B75, N150 | [solution](<../_143. Reorder List.md>)                                            | java, py     | Jun 11, 2024    |
-|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                               | Easy    | N150      | [solution](<../_150. Evaluate Reverse Polish Notation.md>)                        | py           | Jun 11, 2024    |
-|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                             | Easy    | N150      | [solution](<../_155. Min Stack.md>)                                               | py           | Jun 16, 2024    |
-|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                         | Easy    |           | [solution](<../_173. Binary Search Tree Iterator.md>)                             | py           | Jun 26, 2024    |
+|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                           | Medium  |           | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                      | c, py        | Jun 11, 2024    |
+|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                       | Medium  | B75, N150 | [solution](<../_143. Reorder List.md>)                                            | java, py     | Jun 11, 2024    |
+|  150 | [Evaluate Reverse Polish Notation](<https://leetcode.com/problems/evaluate-reverse-polish-notation>)                                               | Medium  | N150      | [solution](<../_150. Evaluate Reverse Polish Notation.md>)                        | py           | Jun 11, 2024    |
+|  155 | [Min Stack](<https://leetcode.com/problems/min-stack>)                                                                                             | Medium  | N150      | [solution](<../_155. Min Stack.md>)                                               | py           | Jun 16, 2024    |
+|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                         | Medium  |           | [solution](<../_173. Binary Search Tree Iterator.md>)                             | py           | Jun 26, 2024    |
 |  224 | [Basic Calculator](<https://leetcode.com/problems/basic-calculator>)                                                                               | Hard    |           | [solution](<../_224. Basic Calculator.md>)                                        | py           | Jun 10, 2024    |
-|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                         | Easy    |           | [solution](<../_227. Basic Calculator II.md>)                                     | py           | Jun 10, 2024    |
+|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                         | Medium  |           | [solution](<../_227. Basic Calculator II.md>)                                     | py           | Jun 10, 2024    |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                         | Hard    |           | [solution](<../_272. Closest Binary Search Tree Value II.md>)                     | py           | Jul 01, 2024    |
-|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                       | Easy    |           | [solution](<../_341. Flatten Nested List Iterator.md>)                            | java         | Jul 02, 2024    |
-|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                             | Easy    |           | [solution](<../_364. Nested List Weight Sum II.md>)                               | java, py     | Jul 02, 2024    |
-|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                     | Easy    |           | [solution](<../_394. Decode String.md>)                                           | py           | Jun 15, 2024    |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>) | Easy    |           | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>) | py           | Jun 12, 2024    |
-|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                 | Easy    |           | [solution](<../_503. Next Greater Element II.md>)                                 | py           | Jul 05, 2024    |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                         | Easy    |           | [solution](<../_654. Maximum Binary Tree.md>)                                     | py           | Jun 12, 2024    |
+|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                       | Medium  |           | [solution](<../_341. Flatten Nested List Iterator.md>)                            | java         | Jul 02, 2024    |
+|  364 | [Nested List Weight Sum II](<https://leetcode.com/problems/nested-list-weight-sum-ii>)                                                             | Medium  |           | [solution](<../_364. Nested List Weight Sum II.md>)                               | java, py     | Jul 02, 2024    |
+|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                     | Medium  |           | [solution](<../_394. Decode String.md>)                                           | py           | Jun 15, 2024    |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>) | Medium  |           | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>) | py           | Jun 12, 2024    |
+|  503 | [Next Greater Element II](<https://leetcode.com/problems/next-greater-element-ii>)                                                                 | Medium  |           | [solution](<../_503. Next Greater Element II.md>)                                 | py           | Jul 05, 2024    |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                         | Medium  |           | [solution](<../_654. Maximum Binary Tree.md>)                                     | py           | Jun 12, 2024    |
 |  726 | [Number of Atoms](<https://leetcode.com/problems/number-of-atoms>)                                                                                 | Hard    | Daily     | [solution](<../_726. Number of Atoms.md>)                                         | py           | Jul 14, 2024    |
-|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                           | Easy    |           | [solution](<../_735. Asteroid Collision.md>)                                      | py           | Jul 14, 2024    |
-|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                           | Easy    | N150      | [solution](<../_739. Daily Temperatures.md>)                                      | c, java, py  | Jun 13, 2024    |
-|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                             | Easy    | N150      | [solution](<../_853. Car Fleet.md>)                                               | py           | Jun 14, 2024    |
-|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                       | Easy    |           | [solution](<../_856. Score of Parentheses.md>)                                    | py           | Jun 19, 2024    |
+|  735 | [Asteroid Collision](<https://leetcode.com/problems/asteroid-collision>)                                                                           | Medium  |           | [solution](<../_735. Asteroid Collision.md>)                                      | py           | Jul 14, 2024    |
+|  739 | [Daily Temperatures](<https://leetcode.com/problems/daily-temperatures>)                                                                           | Medium  | N150      | [solution](<../_739. Daily Temperatures.md>)                                      | c, java, py  | Jun 13, 2024    |
+|  853 | [Car Fleet](<https://leetcode.com/problems/car-fleet>)                                                                                             | Medium  | N150      | [solution](<../_853. Car Fleet.md>)                                               | py           | Jun 14, 2024    |
+|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                       | Medium  |           | [solution](<../_856. Score of Parentheses.md>)                                    | py           | Jun 19, 2024    |
 |  895 | [Maximum Frequency Stack](<https://leetcode.com/problems/maximum-frequency-stack>)                                                                 | Hard    |           | [solution](<../_895. Maximum Frequency Stack.md>)                                 | java, py     | Jul 11, 2024    |
-|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                     | Easy    |           | [solution](<../_921. Minimum Add to Make Parentheses Valid.md>)                   | java, py     | Jun 12, 2024    |
-|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                               | Easy    |           | [solution](<../_946. Validate Stack Sequences.md>)                                | c, py        | Jun 12, 2024    |
-| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                               | Easy    |           | [solution](<../_1006. Clumsy Factorial.md>)                                       | c, py        | Jun 12, 2024    |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)       | Easy    |           | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)   | c, cpp, java | Jun 27, 2024    |
-| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                               | Easy    |           | [solution](<../_1019. Next Greater Node In Linked List.md>)                       | py           | Jun 22, 2024    |
-| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)         | Easy    | Daily     | [solution](<../_1190. Reverse Substrings Between Each Pair of Parentheses.md>)    | py           | Jul 11, 2024    |
-| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                         | Easy    |           | [solution](<../_1209. Remove All Adjacent Duplicates in String II.md>)            | py           | Jun 19, 2024    |
-| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                               | Easy    |           | [solution](<../_1249. Minimum Remove to Make Valid Parentheses.md>)               | py           | Jun 10, 2024    |
-| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                   | Easy    |           | [solution](<../_1265. Print Immutable Linked List in Reverse.md>)                 | c, py        | Jun 06, 2024    |
-| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                 | Easy    |           | [solution](<../_1381. Design a Stack With Increment Operation.md>)                | py           | Jul 06, 2024    |
-| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                   | Easy    |           | [solution](<../_1472. Design Browser History.md>)                                 | py           | Jul 06, 2024    |
+|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                     | Medium  |           | [solution](<../_921. Minimum Add to Make Parentheses Valid.md>)                   | java, py     | Jun 12, 2024    |
+|  946 | [Validate Stack Sequences](<https://leetcode.com/problems/validate-stack-sequences>)                                                               | Medium  |           | [solution](<../_946. Validate Stack Sequences.md>)                                | c, py        | Jun 12, 2024    |
+| 1006 | [Clumsy Factorial](<https://leetcode.com/problems/clumsy-factorial>)                                                                               | Medium  |           | [solution](<../_1006. Clumsy Factorial.md>)                                       | c, py        | Jun 12, 2024    |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)       | Medium  |           | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)   | c, cpp, java | Jun 27, 2024    |
+| 1019 | [Next Greater Node In Linked List](<https://leetcode.com/problems/next-greater-node-in-linked-list>)                                               | Medium  |           | [solution](<../_1019. Next Greater Node In Linked List.md>)                       | py           | Jun 22, 2024    |
+| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)         | Medium  | Daily     | [solution](<../_1190. Reverse Substrings Between Each Pair of Parentheses.md>)    | py           | Jul 11, 2024    |
+| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                         | Medium  |           | [solution](<../_1209. Remove All Adjacent Duplicates in String II.md>)            | py           | Jun 19, 2024    |
+| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                               | Medium  |           | [solution](<../_1249. Minimum Remove to Make Valid Parentheses.md>)               | py           | Jun 10, 2024    |
+| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                   | Medium  |           | [solution](<../_1265. Print Immutable Linked List in Reverse.md>)                 | c, py        | Jun 06, 2024    |
+| 1381 | [Design a Stack With Increment Operation](<https://leetcode.com/problems/design-a-stack-with-increment-operation>)                                 | Medium  |           | [solution](<../_1381. Design a Stack With Increment Operation.md>)                | py           | Jul 06, 2024    |
+| 1472 | [Design Browser History](<https://leetcode.com/problems/design-browser-history>)                                                                   | Medium  |           | [solution](<../_1472. Design Browser History.md>)                                 | py           | Jul 06, 2024    |
 | 1598 | [Crawler Log Folder](<https://leetcode.com/problems/crawler-log-folder>)                                                                           | Easy    | Daily     | [solution](<../_1598. Crawler Log Folder.md>)                                     | c, js        | Jul 10, 2024    |
 | 1700 | [Number of Students Unable to Eat Lunch](<https://leetcode.com/problems/number-of-students-unable-to-eat-lunch>)                                   | Easy    |           | [solution](<../_1700. Number of Students Unable to Eat Lunch.md>)                 | py           | Jun 02, 2024    |
-| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                   | Easy    | Daily     | [solution](<../_1717. Maximum Score From Removing Substrings.md>)                 | py           | Jul 12, 2024    |
-| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                       | Easy    |           | [solution](<../_1762. Buildings With an Ocean View.md>)                           | py           | Jun 10, 2024    |
-| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                             | Easy    |           | [solution](<../_2130. Maximum Twin Sum of a Linked List.md>)                      | py           | Jun 21, 2024    |
-| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                           | Easy    |           | [solution](<../_2211. Count Collisions on a Road.md>)                             | py           | Jul 14, 2024    |
-| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                       | Easy    |           | [solution](<../_2390. Removing Stars From a String.md>)                           | java, py     | Jun 02, 2024    |
-| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                     | Easy    |           | [solution](<../_2487. Remove Nodes From Linked List.md>)                          | py           | Jun 12, 2024    |
+| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                   | Medium  | Daily     | [solution](<../_1717. Maximum Score From Removing Substrings.md>)                 | py           | Jul 12, 2024    |
+| 1762 | [Buildings With an Ocean View](<https://leetcode.com/problems/buildings-with-an-ocean-view>)                                                       | Medium  |           | [solution](<../_1762. Buildings With an Ocean View.md>)                           | py           | Jun 10, 2024    |
+| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                             | Medium  |           | [solution](<../_2130. Maximum Twin Sum of a Linked List.md>)                      | py           | Jun 21, 2024    |
+| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                           | Medium  |           | [solution](<../_2211. Count Collisions on a Road.md>)                             | py           | Jul 14, 2024    |
+| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                       | Medium  |           | [solution](<../_2390. Removing Stars From a String.md>)                           | java, py     | Jun 02, 2024    |
+| 2487 | [Remove Nodes From Linked List](<https://leetcode.com/problems/remove-nodes-from-linked-list>)                                                     | Medium  |           | [solution](<../_2487. Remove Nodes From Linked List.md>)                          | py           | Jun 12, 2024    |
 | 2751 | [Robot Collisions](<https://leetcode.com/problems/robot-collisions>)                                                                               | Hard    | Daily     | [solution](<../_2751. Robot Collisions.md>)                                       | py           | Jul 13, 2024    |
-| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                       | Easy    |           | [solution](<../_2816. Double a Number Represented as a Linked List.md>)           | c            | Jul 04, 2024    |
\ No newline at end of file
+| 2816 | [Double a Number Represented as a Linked List](<https://leetcode.com/problems/double-a-number-represented-as-a-linked-list>)                       | Medium  |           | [solution](<../_2816. Double a Number Represented as a Linked List.md>)           | c            | Jul 04, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/String Matching.md b/markdowns/by_topic/String Matching.md
index b4082d2f..c4f41b31 100644
--- a/markdowns/by_topic/String Matching.md	
+++ b/markdowns/by_topic/String Matching.md	
@@ -8,7 +8,7 @@
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:----------------------------------------------------------------------------------------|:------------|:----------------|
 |   28 | [Find the Index of the First Occurrence in a String](<https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string>)                     | Easy    |           | [solution](<../_28. Find the Index of the First Occurrence in a String.md>)             | py          | May 22, 2024    |
 |  572 | [Subtree of Another Tree](<https://leetcode.com/problems/subtree-of-another-tree>)                                                                           | Easy    | B75, N150 | [solution](<../_572. Subtree of Another Tree.md>)                                       | py          | Jun 03, 2024    |
-|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                             | Easy    |           | [solution](<../_616. Add Bold Tag in String.md>)                                        | py          | Jun 28, 2024    |
-|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                 | Easy    |           | [solution](<../_758. Bold Words in String.md>)                                          | py          | Jun 28, 2024    |
+|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                             | Medium  |           | [solution](<../_616. Add Bold Tag in String.md>)                                        | py          | Jun 28, 2024    |
+|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                 | Medium  |           | [solution](<../_758. Bold Words in String.md>)                                          | py          | Jun 28, 2024    |
 | 1455 | [Check If a Word Occurs As a Prefix of Any Word in a Sentence](<https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence>) | Easy    |           | [solution](<../_1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence.md>) | py          | Jun 01, 2024    |
 | 3045 | [Count Prefix and Suffix Pairs II](<https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii>)                                                         | Hard    |           | [solution](<../_3045. Count Prefix and Suffix Pairs II.md>)                             | py          | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/String.md b/markdowns/by_topic/String.md
index 0870b6d6..72513756 100644
--- a/markdowns/by_topic/String.md
+++ b/markdowns/by_topic/String.md
@@ -6,103 +6,103 @@
 
 |    # | Title                                                                                                                                                                    | Level   | Cats           | Solution                                                                                      | Languages   | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:----------------------------------------------------------------------------------------------|:------------|:----------------|
-|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                         | Easy    | B75, N150      | [solution](<../_3. Longest Substring Without Repeating Characters.md>)                        | java        | May 22, 2024    |
-|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                           | Easy    | B75, N150      | [solution](<../_5. Longest Palindromic Substring.md>)                                         | py          | Jul 05, 2024    |
-|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                       | Easy    |                | [solution](<../_8. String to Integer (atoi).md>)                                              | py          | Jun 10, 2024    |
+|    3 | [Longest Substring Without Repeating Characters](<https://leetcode.com/problems/longest-substring-without-repeating-characters>)                                         | Medium  | B75, N150      | [solution](<../_3. Longest Substring Without Repeating Characters.md>)                        | java        | May 22, 2024    |
+|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                           | Medium  | B75, N150      | [solution](<../_5. Longest Palindromic Substring.md>)                                         | py          | Jul 05, 2024    |
+|    8 | [String to Integer (atoi)](<https://leetcode.com/problems/string-to-integer-atoi>)                                                                                       | Medium  |                | [solution](<../_8. String to Integer (atoi).md>)                                              | py          | Jun 10, 2024    |
 |   14 | [Longest Common Prefix](<https://leetcode.com/problems/longest-common-prefix>)                                                                                           | Easy    |                | [solution](<../_14. Longest Common Prefix.md>)                                                | java        | May 22, 2024    |
-|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                           | Easy    | N150           | [solution](<../_17. Letter Combinations of a Phone Number.md>)                                | java        | Jul 14, 2024    |
+|   17 | [Letter Combinations of a Phone Number](<https://leetcode.com/problems/letter-combinations-of-a-phone-number>)                                                           | Medium  | N150           | [solution](<../_17. Letter Combinations of a Phone Number.md>)                                | java        | Jul 14, 2024    |
 |   20 | [Valid Parentheses](<https://leetcode.com/problems/valid-parentheses>)                                                                                                   | Easy    | B75, N150      | [solution](<../_20. Valid Parentheses.md>)                                                    | java        | May 22, 2024    |
-|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                             | Easy    | N150           | [solution](<../_22. Generate Parentheses.md>)                                                 | py          | Jun 13, 2024    |
+|   22 | [Generate Parentheses](<https://leetcode.com/problems/generate-parentheses>)                                                                                             | Medium  | N150           | [solution](<../_22. Generate Parentheses.md>)                                                 | py          | Jun 13, 2024    |
 |   28 | [Find the Index of the First Occurrence in a String](<https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string>)                                 | Easy    |                | [solution](<../_28. Find the Index of the First Occurrence in a String.md>)                   | py          | May 22, 2024    |
-|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                         | Easy    | B75, N150      | [solution](<../_49. Group Anagrams.md>)                                                       | py          | Jun 13, 2024    |
-|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                           | Easy    |                | [solution](<../_71. Simplify Path.md>)                                                        | py          | Jun 11, 2024    |
-|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                               | Easy    | B75, N150      | [solution](<../_79. Word Search.md>)                                                          | py          | Jun 27, 2024    |
+|   49 | [Group Anagrams](<https://leetcode.com/problems/group-anagrams>)                                                                                                         | Medium  | B75, N150      | [solution](<../_49. Group Anagrams.md>)                                                       | py          | Jun 13, 2024    |
+|   71 | [Simplify Path](<https://leetcode.com/problems/simplify-path>)                                                                                                           | Medium  |                | [solution](<../_71. Simplify Path.md>)                                                        | py          | Jun 11, 2024    |
+|   79 | [Word Search](<https://leetcode.com/problems/word-search>)                                                                                                               | Medium  | B75, N150      | [solution](<../_79. Word Search.md>)                                                          | py          | Jun 27, 2024    |
 |  125 | [Valid Palindrome](<https://leetcode.com/problems/valid-palindrome>)                                                                                                     | Easy    | B75, N150      | [solution](<../_125. Valid Palindrome.md>)                                                    | c, py       | Jun 07, 2024    |
-|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                       | Easy    |                | [solution](<../_165. Compare Version Numbers.md>)                                             | c, py       | Jul 02, 2024    |
-|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                           | Easy    |                | [solution](<../_166. Fraction to Recurring Decimal.md>)                                       | py          | May 31, 2024    |
-|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                               | Easy    | B75, N150      | [solution](<../_208. Implement Trie (Prefix Tree).md>)                                        | py          | Jun 27, 2024    |
-|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                 | Easy    | B75, N150      | [solution](<../_211. Design Add and Search Words Data Structure.md>)                          | py          | Jun 27, 2024    |
+|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                                       | Medium  |                | [solution](<../_165. Compare Version Numbers.md>)                                             | c, py       | Jul 02, 2024    |
+|  166 | [Fraction to Recurring Decimal](<https://leetcode.com/problems/fraction-to-recurring-decimal>)                                                                           | Medium  |                | [solution](<../_166. Fraction to Recurring Decimal.md>)                                       | py          | May 31, 2024    |
+|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                                                               | Medium  | B75, N150      | [solution](<../_208. Implement Trie (Prefix Tree).md>)                                        | py          | Jun 27, 2024    |
+|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)                                                 | Medium  | B75, N150      | [solution](<../_211. Design Add and Search Words Data Structure.md>)                          | py          | Jun 27, 2024    |
 |  212 | [Word Search II](<https://leetcode.com/problems/word-search-ii>)                                                                                                         | Hard    | B75, N150      | [solution](<../_212. Word Search II.md>)                                                      | py          | Jun 27, 2024    |
 |  224 | [Basic Calculator](<https://leetcode.com/problems/basic-calculator>)                                                                                                     | Hard    |                | [solution](<../_224. Basic Calculator.md>)                                                    | py          | Jun 10, 2024    |
-|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                               | Easy    |                | [solution](<../_227. Basic Calculator II.md>)                                                 | py          | Jun 10, 2024    |
+|  227 | [Basic Calculator II](<https://leetcode.com/problems/basic-calculator-ii>)                                                                                               | Medium  |                | [solution](<../_227. Basic Calculator II.md>)                                                 | py          | Jun 10, 2024    |
 |  242 | [Valid Anagram](<https://leetcode.com/problems/valid-anagram>)                                                                                                           | Easy    | B75, N150      | [solution](<../_242. Valid Anagram.md>)                                                       | c, py       | Jun 13, 2024    |
-|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                   | Easy    | B75, N150      | [solution](<../_271. Encode and Decode Strings.md>)                                           | py          | Jun 13, 2024    |
+|  271 | [Encode and Decode Strings](<https://leetcode.com/problems/encode-and-decode-strings>)                                                                                   | Medium  | B75, N150      | [solution](<../_271. Encode and Decode Strings.md>)                                           | py          | Jun 13, 2024    |
 |  273 | [Integer to English Words](<https://leetcode.com/problems/integer-to-english-words>)                                                                                     | Hard    |                | [solution](<../_273. Integer to English Words.md>)                                            | py          | Jun 11, 2024    |
 |  344 | [Reverse String](<https://leetcode.com/problems/reverse-string>)                                                                                                         | Easy    | Daily          | [solution](<../_344. Reverse String.md>)                                                      | java, py    | Jun 02, 2024    |
 |  345 | [Reverse Vowels of a String](<https://leetcode.com/problems/reverse-vowels-of-a-string>)                                                                                 | Easy    |                | [solution](<../_345. Reverse Vowels of a String.md>)                                          | py          | May 23, 2024    |
 |  392 | [Is Subsequence](<https://leetcode.com/problems/is-subsequence>)                                                                                                         | Easy    |                | [solution](<../_392. Is Subsequence.md>)                                                      | java        | Jun 22, 2024    |
-|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                           | Easy    |                | [solution](<../_394. Decode String.md>)                                                       | py          | Jun 15, 2024    |
+|  394 | [Decode String](<https://leetcode.com/problems/decode-string>)                                                                                                           | Medium  |                | [solution](<../_394. Decode String.md>)                                                       | py          | Jun 15, 2024    |
 |  408 | [Valid Word Abbreviation](<https://leetcode.com/problems/valid-word-abbreviation>)                                                                                       | Easy    |                | [solution](<../_408. Valid Word Abbreviation.md>)                                             | py          | Jun 02, 2024    |
 |  409 | [Longest Palindrome](<https://leetcode.com/problems/longest-palindrome>)                                                                                                 | Easy    | Daily          | [solution](<../_409. Longest Palindrome.md>)                                                  | c, py       | Jun 04, 2024    |
 |  412 | [Fizz Buzz](<https://leetcode.com/problems/fizz-buzz>)                                                                                                                   | Easy    |                | [solution](<../_412. Fizz Buzz.md>)                                                           | java, py    | Jun 02, 2024    |
-|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                       | Easy    | B75, N150      | [solution](<../_424. Longest Repeating Character Replacement.md>)                             | py          | Jul 06, 2024    |
-|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                             | Easy    |                | [solution](<../_451. Sort Characters By Frequency.md>)                                        | py          | Jun 18, 2024    |
-|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                   | Easy    |                | [solution](<../_535. Encode and Decode TinyURL.md>)                                           | py          | Jun 07, 2024    |
-|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                           | Easy    | N150           | [solution](<../_567. Permutation in String.md>)                                               | py          | Jul 06, 2024    |
-|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                         | Easy    |                | [solution](<../_616. Add Bold Tag in String.md>)                                              | py          | Jun 28, 2024    |
-|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                         | Easy    | B75, N150      | [solution](<../_647. Palindromic Substrings.md>)                                              | py          | Jul 05, 2024    |
-|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                           | Easy    | Daily          | [solution](<../_648. Replace Words.md>)                                                       | java, py    | Jun 07, 2024    |
-|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                 | Easy    |                | [solution](<../_676. Implement Magic Dictionary.md>)                                          | py          | Jun 27, 2024    |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                             | Easy    |                | [solution](<../_692. Top K Frequent Words.md>)                                                | py          | Jun 09, 2024    |
-|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                 | Easy    |                | [solution](<../_720. Longest Word in Dictionary.md>)                                          | py          | Jun 27, 2024    |
+|  424 | [Longest Repeating Character Replacement](<https://leetcode.com/problems/longest-repeating-character-replacement>)                                                       | Medium  | B75, N150      | [solution](<../_424. Longest Repeating Character Replacement.md>)                             | py          | Jul 06, 2024    |
+|  451 | [Sort Characters By Frequency](<https://leetcode.com/problems/sort-characters-by-frequency>)                                                                             | Medium  |                | [solution](<../_451. Sort Characters By Frequency.md>)                                        | py          | Jun 18, 2024    |
+|  535 | [Encode and Decode TinyURL](<https://leetcode.com/problems/encode-and-decode-tinyurl>)                                                                                   | Medium  |                | [solution](<../_535. Encode and Decode TinyURL.md>)                                           | py          | Jun 07, 2024    |
+|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                           | Medium  | N150           | [solution](<../_567. Permutation in String.md>)                                               | py          | Jul 06, 2024    |
+|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                                                                         | Medium  |                | [solution](<../_616. Add Bold Tag in String.md>)                                              | py          | Jun 28, 2024    |
+|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                                         | Medium  | B75, N150      | [solution](<../_647. Palindromic Substrings.md>)                                              | py          | Jul 05, 2024    |
+|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                                                                           | Medium  | Daily          | [solution](<../_648. Replace Words.md>)                                                       | java, py    | Jun 07, 2024    |
+|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                                                                 | Medium  |                | [solution](<../_676. Implement Magic Dictionary.md>)                                          | py          | Jun 27, 2024    |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                                                             | Medium  |                | [solution](<../_692. Top K Frequent Words.md>)                                                | py          | Jun 09, 2024    |
+|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                                                                 | Medium  |                | [solution](<../_720. Longest Word in Dictionary.md>)                                          | py          | Jun 27, 2024    |
 |  726 | [Number of Atoms](<https://leetcode.com/problems/number-of-atoms>)                                                                                                       | Hard    | Daily          | [solution](<../_726. Number of Atoms.md>)                                                     | py          | Jul 14, 2024    |
-|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                             | Easy    |                | [solution](<../_758. Bold Words in String.md>)                                                | py          | Jun 28, 2024    |
+|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                                                             | Medium  |                | [solution](<../_758. Bold Words in String.md>)                                                | py          | Jun 28, 2024    |
 |  771 | [Jewels and Stones](<https://leetcode.com/problems/jewels-and-stones>)                                                                                                   | Easy    |                | [solution](<../_771. Jewels and Stones.md>)                                                   | java, py    | Jun 02, 2024    |
-|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                       | Easy    |                | [solution](<../_784. Letter Case Permutation.md>)                                             | py          | Jun 15, 2024    |
-|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                 | Easy    |                | [solution](<../_791. Custom Sort String.md>)                                                  | java        | Jun 24, 2024    |
-|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                     | Easy    |                | [solution](<../_848. Shifting Letters.md>)                                                    | py          | Jun 29, 2024    |
-|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                             | Easy    |                | [solution](<../_856. Score of Parentheses.md>)                                                | py          | Jun 19, 2024    |
-|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                     | Easy    |                | [solution](<../_890. Find and Replace Pattern.md>)                                            | py          | Jul 03, 2024    |
-|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                           | Easy    |                | [solution](<../_921. Minimum Add to Make Parentheses Valid.md>)                               | java, py    | Jun 12, 2024    |
+|  784 | [Letter Case Permutation](<https://leetcode.com/problems/letter-case-permutation>)                                                                                       | Medium  |                | [solution](<../_784. Letter Case Permutation.md>)                                             | py          | Jun 15, 2024    |
+|  791 | [Custom Sort String](<https://leetcode.com/problems/custom-sort-string>)                                                                                                 | Medium  |                | [solution](<../_791. Custom Sort String.md>)                                                  | java        | Jun 24, 2024    |
+|  848 | [Shifting Letters](<https://leetcode.com/problems/shifting-letters>)                                                                                                     | Medium  |                | [solution](<../_848. Shifting Letters.md>)                                                    | py          | Jun 29, 2024    |
+|  856 | [Score of Parentheses](<https://leetcode.com/problems/score-of-parentheses>)                                                                                             | Medium  |                | [solution](<../_856. Score of Parentheses.md>)                                                | py          | Jun 19, 2024    |
+|  890 | [Find and Replace Pattern](<https://leetcode.com/problems/find-and-replace-pattern>)                                                                                     | Medium  |                | [solution](<../_890. Find and Replace Pattern.md>)                                            | py          | Jul 03, 2024    |
+|  921 | [Minimum Add to Make Parentheses Valid](<https://leetcode.com/problems/minimum-add-to-make-parentheses-valid>)                                                           | Medium  |                | [solution](<../_921. Minimum Add to Make Parentheses Valid.md>)                               | java, py    | Jun 12, 2024    |
 | 1002 | [Find Common Characters](<https://leetcode.com/problems/find-common-characters>)                                                                                         | Easy    | Daily          | [solution](<../_1002. Find Common Characters.md>)                                             | py          | Jun 08, 2024    |
 | 1028 | [Recover a Tree From Preorder Traversal](<https://leetcode.com/problems/recover-a-tree-from-preorder-traversal>)                                                         | Hard    |                | [solution](<../_1028. Recover a Tree From Preorder Traversal.md>)                             | py          | Jul 01, 2024    |
-| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                       | Easy    |                | [solution](<../_1087. Brace Expansion.md>)                                                    | py          | Jun 15, 2024    |
-| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                 | Easy    |                | [solution](<../_1166. Design File System.md>)                                                 | py          | Jun 28, 2024    |
-| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                               | Easy    | Daily          | [solution](<../_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                | py          | Jul 11, 2024    |
-| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                               | Easy    |                | [solution](<../_1209. Remove All Adjacent Duplicates in String II.md>)                        | py          | Jun 19, 2024    |
-| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                         | Easy    |                | [solution](<../_1233. Remove Sub-Folders from the Filesystem.md>)                             | py          | Jun 28, 2024    |
-| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)         | Easy    |                | [solution](<../_1239. Maximum Length of a Concatenated String with Unique Characters.md>)     | py          | Jun 29, 2024    |
-| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                     | Easy    |                | [solution](<../_1249. Minimum Remove to Make Valid Parentheses.md>)                           | py          | Jun 10, 2024    |
+| 1087 | [Brace Expansion](<https://leetcode.com/problems/brace-expansion>)                                                                                                       | Medium  |                | [solution](<../_1087. Brace Expansion.md>)                                                    | py          | Jun 15, 2024    |
+| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                                                                 | Medium  |                | [solution](<../_1166. Design File System.md>)                                                 | py          | Jun 28, 2024    |
+| 1190 | [Reverse Substrings Between Each Pair of Parentheses](<https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses>)                               | Medium  | Daily          | [solution](<../_1190. Reverse Substrings Between Each Pair of Parentheses.md>)                | py          | Jul 11, 2024    |
+| 1209 | [Remove All Adjacent Duplicates in String II](<https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii>)                                               | Medium  |                | [solution](<../_1209. Remove All Adjacent Duplicates in String II.md>)                        | py          | Jun 19, 2024    |
+| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)                                                         | Medium  |                | [solution](<../_1233. Remove Sub-Folders from the Filesystem.md>)                             | py          | Jun 28, 2024    |
+| 1239 | [Maximum Length of a Concatenated String with Unique Characters](<https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters>)         | Medium  |                | [solution](<../_1239. Maximum Length of a Concatenated String with Unique Characters.md>)     | py          | Jun 29, 2024    |
+| 1249 | [Minimum Remove to Make Valid Parentheses](<https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses>)                                                     | Medium  |                | [solution](<../_1249. Minimum Remove to Make Valid Parentheses.md>)                           | py          | Jun 10, 2024    |
 | 1255 | [Maximum Score Words Formed by Letters](<https://leetcode.com/problems/maximum-score-words-formed-by-letters>)                                                           | Hard    |                | [solution](<../_1255. Maximum Score Words Formed by Letters.md>)                              | py          | Jun 15, 2024    |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                   | Easy    |                | [solution](<../_1268. Search Suggestions System.md>)                                          | py          | Jun 29, 2024    |
-| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>) | Easy    | Daily          | [solution](<../_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>) | py          | Jun 08, 2024    |
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                                                                   | Medium  |                | [solution](<../_1268. Search Suggestions System.md>)                                          | py          | Jun 29, 2024    |
+| 1404 | [Number of Steps to Reduce a Number in Binary Representation to One](<https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one>) | Medium  | Daily          | [solution](<../_1404. Number of Steps to Reduce a Number in Binary Representation to One.md>) | py          | Jun 08, 2024    |
 | 1436 | [Destination City](<https://leetcode.com/problems/destination-city>)                                                                                                     | Easy    |                | [solution](<../_1436. Destination City.md>)                                                   | java        | Jun 01, 2024    |
 | 1455 | [Check If a Word Occurs As a Prefix of Any Word in a Sentence](<https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence>)             | Easy    |                | [solution](<../_1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence.md>)       | py          | Jun 01, 2024    |
-| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                           | Easy    |                | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>)              | py          | Jul 12, 2024    |
-| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                           | Easy    |                | [solution](<../_1525. Number of Good Ways to Split a String.md>)                              | py          | Jun 01, 2024    |
+| 1461 | [Check If a String Contains All Binary Codes of Size K](<https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k>)                           | Medium  |                | [solution](<../_1461. Check If a String Contains All Binary Codes of Size K.md>)              | py          | Jul 12, 2024    |
+| 1525 | [Number of Good Ways to Split a String](<https://leetcode.com/problems/number-of-good-ways-to-split-a-string>)                                                           | Medium  |                | [solution](<../_1525. Number of Good Ways to Split a String.md>)                              | py          | Jun 01, 2024    |
 | 1598 | [Crawler Log Folder](<https://leetcode.com/problems/crawler-log-folder>)                                                                                                 | Easy    | Daily          | [solution](<../_1598. Crawler Log Folder.md>)                                                 | c, js       | Jul 10, 2024    |
-| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                 | Easy    |                | [solution](<../_1657. Determine if Two Strings Are Close.md>)                                 | py          | Jul 13, 2024    |
+| 1657 | [Determine if Two Strings Are Close](<https://leetcode.com/problems/determine-if-two-strings-are-close>)                                                                 | Medium  |                | [solution](<../_1657. Determine if Two Strings Are Close.md>)                                 | py          | Jul 13, 2024    |
 | 1684 | [Count the Number of Consistent Strings](<https://leetcode.com/problems/count-the-number-of-consistent-strings>)                                                         | Easy    |                | [solution](<../_1684. Count the Number of Consistent Strings.md>)                             | c, py       | Jun 06, 2024    |
-| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                       | Easy    |                | [solution](<../_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)            | c, java     | Jun 22, 2024    |
-| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                   | Easy    |                | [solution](<../_1698. Number of Distinct Substrings in a String.md>)                          | java, py    | Jun 02, 2024    |
-| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                         | Easy    | Daily          | [solution](<../_1717. Maximum Score From Removing Substrings.md>)                             | py          | Jul 12, 2024    |
+| 1689 | [Partitioning Into Minimum Number Of Deci-Binary Numbers](<https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers>)                       | Medium  |                | [solution](<../_1689. Partitioning Into Minimum Number Of Deci-Binary Numbers.md>)            | c, java     | Jun 22, 2024    |
+| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)                                                   | Medium  |                | [solution](<../_1698. Number of Distinct Substrings in a String.md>)                          | java, py    | Jun 02, 2024    |
+| 1717 | [Maximum Score From Removing Substrings](<https://leetcode.com/problems/maximum-score-from-removing-substrings>)                                                         | Medium  | Daily          | [solution](<../_1717. Maximum Score From Removing Substrings.md>)                             | py          | Jul 12, 2024    |
 | 1736 | [Latest Time by Replacing Hidden Digits](<https://leetcode.com/problems/latest-time-by-replacing-hidden-digits>)                                                         | Easy    |                | [solution](<../_1736. Latest Time by Replacing Hidden Digits.md>)                             | c           | Jun 03, 2024    |
-| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                           | Easy    |                | [solution](<../_1759. Count Number of Homogenous Substrings.md>)                              | c, java     | Jun 10, 2024    |
+| 1759 | [Count Number of Homogenous Substrings](<https://leetcode.com/problems/count-number-of-homogenous-substrings>)                                                           | Medium  |                | [solution](<../_1759. Count Number of Homogenous Substrings.md>)                              | c, java     | Jun 10, 2024    |
 | 1768 | [Merge Strings Alternately](<https://leetcode.com/problems/merge-strings-alternately>)                                                                                   | Easy    |                | [solution](<../_1768. Merge Strings Alternately.md>)                                          | java        | Jul 01, 2024    |
-| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                         | Easy    |                | [solution](<../_1804. Implement Trie II (Prefix Tree).md>)                                    | py          | Jun 27, 2024    |
+| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                                                                         | Medium  |                | [solution](<../_1804. Implement Trie II (Prefix Tree).md>)                                    | py          | Jun 27, 2024    |
 | 1844 | [Replace All Digits with Characters](<https://leetcode.com/problems/replace-all-digits-with-characters>)                                                                 | Easy    |                | [solution](<../_1844. Replace All Digits with Characters.md>)                                 | py          | Jun 29, 2024    |
-| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                   | Easy    |                | [solution](<../_1980. Find Unique Binary String.md>)                                          | c, py       | Jun 27, 2024    |
+| 1980 | [Find Unique Binary String](<https://leetcode.com/problems/find-unique-binary-string>)                                                                                   | Medium  |                | [solution](<../_1980. Find Unique Binary String.md>)                                          | c, py       | Jun 27, 2024    |
 | 2011 | [Final Value of Variable After Performing Operations](<https://leetcode.com/problems/final-value-of-variable-after-performing-operations>)                               | Easy    |                | [solution](<../_2011. Final Value of Variable After Performing Operations.md>)                | c           | Jun 03, 2024    |
-| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                 | Easy    | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>)                 | c, py       | Jun 10, 2024    |
-| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                               | Easy    |                | [solution](<../_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                | java        | Jul 01, 2024    |
-| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                 | Easy    | Daily          | [solution](<../_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)         | py          | Jul 16, 2024    |
-| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                 | Easy    |                | [solution](<../_2211. Count Collisions on a Road.md>)                                         | py          | Jul 14, 2024    |
-| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                             | Easy    |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                                       | py          | Jul 05, 2024    |
-| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                             | Easy    |                | [solution](<../_2390. Removing Stars From a String.md>)                                       | java, py    | Jun 02, 2024    |
-| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                               | Easy    |                | [solution](<../_2405. Optimal Partition of String.md>)                                        | py          | Jun 23, 2024    |
+| 2083 | [Substrings That Begin and End With the Same Letter](<https://leetcode.com/problems/substrings-that-begin-and-end-with-the-same-letter>)                                 | Medium  | Weekly Premium | [solution](<../_2083. Substrings That Begin and End With the Same Letter.md>)                 | c, py       | Jun 10, 2024    |
+| 2086 | [Minimum Number of Food Buckets to Feed the Hamsters](<https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters>)                               | Medium  |                | [solution](<../_2086. Minimum Number of Food Buckets to Feed the Hamsters.md>)                | java        | Jul 01, 2024    |
+| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>)                 | Medium  | Daily          | [solution](<../_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>)         | py          | Jul 16, 2024    |
+| 2211 | [Count Collisions on a Road](<https://leetcode.com/problems/count-collisions-on-a-road>)                                                                                 | Medium  |                | [solution](<../_2211. Count Collisions on a Road.md>)                                         | py          | Jul 14, 2024    |
+| 2268 | [Minimum Number of Keypresses](<https://leetcode.com/problems/minimum-number-of-keypresses>)                                                                             | Medium  |                | [solution](<../_2268. Minimum Number of Keypresses.md>)                                       | py          | Jul 05, 2024    |
+| 2390 | [Removing Stars From a String](<https://leetcode.com/problems/removing-stars-from-a-string>)                                                                             | Medium  |                | [solution](<../_2390. Removing Stars From a String.md>)                                       | java, py    | Jun 02, 2024    |
+| 2405 | [Optimal Partition of String](<https://leetcode.com/problems/optimal-partition-of-string>)                                                                               | Medium  |                | [solution](<../_2405. Optimal Partition of String.md>)                                        | py          | Jun 23, 2024    |
 | 2423 | [Remove Letter To Equalize Frequency](<https://leetcode.com/problems/remove-letter-to-equalize-frequency>)                                                               | Easy    |                | [solution](<../_2423. Remove Letter To Equalize Frequency.md>)                                | py          | Jun 17, 2024    |
-| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                       | Easy    | Daily          | [solution](<../_2486. Append Characters to String to Make Subsequence.md>)                    | c, java, py | Jun 03, 2024    |
+| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                                       | Medium  | Daily          | [solution](<../_2486. Append Characters to String to Make Subsequence.md>)                    | c, java, py | Jun 03, 2024    |
 | 2678 | [Number of Senior Citizens](<https://leetcode.com/problems/number-of-senior-citizens>)                                                                                   | Easy    |                | [solution](<../_2678. Number of Senior Citizens.md>)                                          | java        | May 22, 2024    |
-| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)               | Easy    |                | [solution](<../_2734. Lexicographically Smallest String After Substring Operation.md>)        | py          | Jun 29, 2024    |
-| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                             | Easy    | Weekly Premium | [solution](<../_2743. Count Substrings Without Repeating Character.md>)                       | java, py    | Jun 22, 2024    |
+| 2734 | [Lexicographically Smallest String After Substring Operation](<https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation>)               | Medium  |                | [solution](<../_2734. Lexicographically Smallest String After Substring Operation.md>)        | py          | Jun 29, 2024    |
+| 2743 | [Count Substrings Without Repeating Character](<https://leetcode.com/problems/count-substrings-without-repeating-character>)                                             | Medium  | Weekly Premium | [solution](<../_2743. Count Substrings Without Repeating Character.md>)                       | java, py    | Jun 22, 2024    |
 | 2942 | [Find Words Containing Character](<https://leetcode.com/problems/find-words-containing-character>)                                                                       | Easy    |                | [solution](<../_2942. Find Words Containing Character.md>)                                    | c           | Jun 06, 2024    |
-| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                             | Easy    |                | [solution](<../_3043. Find the Length of the Longest Common Prefix.md>)                       | py          | Jun 28, 2024    |
+| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>)                                             | Medium  |                | [solution](<../_3043. Find the Length of the Longest Common Prefix.md>)                       | py          | Jun 28, 2024    |
 | 3045 | [Count Prefix and Suffix Pairs II](<https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii>)                                                                     | Hard    |                | [solution](<../_3045. Count Prefix and Suffix Pairs II.md>)                                   | py          | Jun 29, 2024    |
-| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>) | Easy    |                | [solution](<../_3106. Lexicographically Smallest String After Operations With Constraint.md>) | py          | Jun 29, 2024    |
+| 3106 | [Lexicographically Smallest String After Operations With Constraint](<https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint>) | Medium  |                | [solution](<../_3106. Lexicographically Smallest String After Operations With Constraint.md>) | py          | Jun 29, 2024    |
 | 3110 | [Score of a String](<https://leetcode.com/problems/score-of-a-string>)                                                                                                   | Easy    | Daily          | [solution](<../_3110. Score of a String.md>)                                                  | java, py    | Jun 01, 2024    |
 | 3136 | [Valid Word](<https://leetcode.com/problems/valid-word>)                                                                                                                 | Easy    |                | [solution](<../_3136. Valid Word.md>)                                                         | c, py       | Jul 03, 2024    |
 | 3168 | Weekly Contest 400 - q1 - [Minimum Number of Chairs in a Waiting Room](<https://leetcode.com/problems/minimum-number-of-chairs-in-a-waiting-room>)                       | Easy    | Contest        | [solution](<../_3168. Minimum Number of Chairs in a Waiting Room.md>)                         | py          | Jul 07, 2024    |
 | 3174 | Biweekly Contest 132 - q1 - [Clear Digits](<https://leetcode.com/problems/clear-digits>)                                                                                 | Easy    | Contest        | [solution](<../_3174. Clear Digits.md>)                                                       | py          | Jul 07, 2024    |
 | 3210 | Weekly Contest 405 - q1 - [Find the Encrypted String](<https://leetcode.com/problems/find-the-encrypted-string>)                                                         | Easy    | Contest        | [solution](<../_3210. Find the Encrypted String.md>)                                          | py          | Jul 07, 2024    |
-| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)               | Easy    | Contest        | [solution](<../_3211. Generate Binary Strings Without Adjacent Zeros.md>)                     | js, py      | Jul 07, 2024    |
+| 3211 | Weekly Contest 405 - q2 - [Generate Binary Strings Without Adjacent Zeros](<https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros>)               | Medium  | Contest        | [solution](<../_3211. Generate Binary Strings Without Adjacent Zeros.md>)                     | js, py      | Jul 07, 2024    |
 | 3213 | Weekly Contest 405 - q4 - [Construct String with Minimum Cost](<https://leetcode.com/problems/construct-string-with-minimum-cost>)                                       | Hard    | Contest        | [solution](<../_3213. Construct String with Minimum Cost.md>)                                 | py          | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Suffix Array.md b/markdowns/by_topic/Suffix Array.md
index 4226a981..886da02e 100644
--- a/markdowns/by_topic/Suffix Array.md	
+++ b/markdowns/by_topic/Suffix Array.md	
@@ -6,5 +6,5 @@
 
 |    # | Title                                                                                                                              | Level   | Cats    | Solution                                                             | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------------|:--------|:--------|:---------------------------------------------------------------------|:------------|:----------------|
-| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)             | Easy    |         | [solution](<../_1698. Number of Distinct Substrings in a String.md>) | java, py    | Jun 02, 2024    |
+| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)             | Medium  |         | [solution](<../_1698. Number of Distinct Substrings in a String.md>) | java, py    | Jun 02, 2024    |
 | 3213 | Weekly Contest 405 - q4 - [Construct String with Minimum Cost](<https://leetcode.com/problems/construct-string-with-minimum-cost>) | Hard    | Contest | [solution](<../_3213. Construct String with Minimum Cost.md>)        | py          | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Topological Sort.md b/markdowns/by_topic/Topological Sort.md
index 48d27478..c57e4675 100644
--- a/markdowns/by_topic/Topological Sort.md	
+++ b/markdowns/by_topic/Topological Sort.md	
@@ -6,4 +6,4 @@
 
 |    # | Title                                                                                                                                      | Level   | Cats   | Solution                                                                       | Languages   | Date Complete   |
 |-----:|:-------------------------------------------------------------------------------------------------------------------------------------------|:--------|:-------|:-------------------------------------------------------------------------------|:------------|:----------------|
-| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>) | Easy    | Daily  | [solution](<../_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>) | java, py    | Jun 29, 2024    |
\ No newline at end of file
+| 2192 | [All Ancestors of a Node in a Directed Acyclic Graph](<https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph>) | Medium  | Daily  | [solution](<../_2192. All Ancestors of a Node in a Directed Acyclic Graph.md>) | java, py    | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Tree.md b/markdowns/by_topic/Tree.md
index 71ab4cdc..e506e659 100644
--- a/markdowns/by_topic/Tree.md
+++ b/markdowns/by_topic/Tree.md
@@ -7,76 +7,76 @@
 |    # | Title                                                                                                                                                    | Level   | Cats           | Solution                                                                              | Languages    | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:--------------------------------------------------------------------------------------|:-------------|:----------------|
 |   94 | [Binary Tree Inorder Traversal](<https://leetcode.com/problems/binary-tree-inorder-traversal>)                                                           | Easy    |                | [solution](<../_94. Binary Tree Inorder Traversal.md>)                                | java, py     | Jun 29, 2024    |
-|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                               | Easy    | B75, N150      | [solution](<../_98. Validate Binary Search Tree.md>)                                  | c            | Jun 23, 2024    |
+|   98 | [Validate Binary Search Tree](<https://leetcode.com/problems/validate-binary-search-tree>)                                                               | Medium  | B75, N150      | [solution](<../_98. Validate Binary Search Tree.md>)                                  | c            | Jun 23, 2024    |
 |  100 | [Same Tree](<https://leetcode.com/problems/same-tree>)                                                                                                   | Easy    | B75, N150      | [solution](<../_100. Same Tree.md>)                                                   | py           | Jul 03, 2024    |
-|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                   | Easy    | B75, N150      | [solution](<../_102. Binary Tree Level Order Traversal.md>)                           | java         | Jul 04, 2024    |
-|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                     | Easy    |                | [solution](<../_103. Binary Tree Zigzag Level Order Traversal.md>)                    | py           | Jul 03, 2024    |
+|  102 | [Binary Tree Level Order Traversal](<https://leetcode.com/problems/binary-tree-level-order-traversal>)                                                   | Medium  | B75, N150      | [solution](<../_102. Binary Tree Level Order Traversal.md>)                           | java         | Jul 04, 2024    |
+|  103 | [Binary Tree Zigzag Level Order Traversal](<https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal>)                                     | Medium  |                | [solution](<../_103. Binary Tree Zigzag Level Order Traversal.md>)                    | py           | Jul 03, 2024    |
 |  104 | [Maximum Depth of Binary Tree](<https://leetcode.com/problems/maximum-depth-of-binary-tree>)                                                             | Easy    | B75, N150      | [solution](<../_104. Maximum Depth of Binary Tree.md>)                                | py           | Jul 04, 2024    |
-|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                             | Easy    |                | [solution](<../_107. Binary Tree Level Order Traversal II.md>)                        | java         | Jul 04, 2024    |
+|  107 | [Binary Tree Level Order Traversal II](<https://leetcode.com/problems/binary-tree-level-order-traversal-ii>)                                             | Medium  |                | [solution](<../_107. Binary Tree Level Order Traversal II.md>)                        | java         | Jul 04, 2024    |
 |  110 | [Balanced Binary Tree](<https://leetcode.com/problems/balanced-binary-tree>)                                                                             | Easy    | N150           | [solution](<../_110. Balanced Binary Tree.md>)                                        | py           | Jul 04, 2024    |
 |  111 | [Minimum Depth of Binary Tree](<https://leetcode.com/problems/minimum-depth-of-binary-tree>)                                                             | Easy    |                | [solution](<../_111. Minimum Depth of Binary Tree.md>)                                | c, java      | Jun 07, 2024    |
 |  112 | [Path Sum](<https://leetcode.com/problems/path-sum>)                                                                                                     | Easy    |                | [solution](<../_112. Path Sum.md>)                                                    | py           | Jul 03, 2024    |
-|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                               | Easy    |                | [solution](<../_113. Path Sum II.md>)                                                 | py           | Jul 03, 2024    |
-|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                 | Easy    |                | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                          | c, py        | Jun 11, 2024    |
+|  113 | [Path Sum II](<https://leetcode.com/problems/path-sum-ii>)                                                                                               | Medium  |                | [solution](<../_113. Path Sum II.md>)                                                 | py           | Jul 03, 2024    |
+|  114 | [Flatten Binary Tree to Linked List](<https://leetcode.com/problems/flatten-binary-tree-to-linked-list>)                                                 | Medium  |                | [solution](<../_114. Flatten Binary Tree to Linked List.md>)                          | c, py        | Jun 11, 2024    |
 |  124 | [Binary Tree Maximum Path Sum](<https://leetcode.com/problems/binary-tree-maximum-path-sum>)                                                             | Hard    | B75, N150      | [solution](<../_124. Binary Tree Maximum Path Sum.md>)                                | py           | Jul 04, 2024    |
-|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                     | Easy    |                | [solution](<../_129. Sum Root to Leaf Numbers.md>)                                    | py           | Jun 07, 2024    |
-|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                               | Easy    |                | [solution](<../_173. Binary Search Tree Iterator.md>)                                 | py           | Jun 26, 2024    |
-|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                               | Easy    | N150           | [solution](<../_199. Binary Tree Right Side View.md>)                                 | cpp, java    | Jul 04, 2024    |
+|  129 | [Sum Root to Leaf Numbers](<https://leetcode.com/problems/sum-root-to-leaf-numbers>)                                                                     | Medium  |                | [solution](<../_129. Sum Root to Leaf Numbers.md>)                                    | py           | Jun 07, 2024    |
+|  173 | [Binary Search Tree Iterator](<https://leetcode.com/problems/binary-search-tree-iterator>)                                                               | Medium  |                | [solution](<../_173. Binary Search Tree Iterator.md>)                                 | py           | Jun 26, 2024    |
+|  199 | [Binary Tree Right Side View](<https://leetcode.com/problems/binary-tree-right-side-view>)                                                               | Medium  | N150           | [solution](<../_199. Binary Tree Right Side View.md>)                                 | cpp, java    | Jul 04, 2024    |
 |  226 | [Invert Binary Tree](<https://leetcode.com/problems/invert-binary-tree>)                                                                                 | Easy    | B75, N150      | [solution](<../_226. Invert Binary Tree.md>)                                          | py           | Jul 03, 2024    |
-|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                           | Easy    | B75, N150      | [solution](<../_230. Kth Smallest Element in a BST.md>)                               | py           | Jun 29, 2024    |
-|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                         | Easy    | B75, N150      | [solution](<../_235. Lowest Common Ancestor of a Binary Search Tree.md>)              | py           | Jul 04, 2024    |
-|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                       | Easy    | B75            | [solution](<../_236. Lowest Common Ancestor of a Binary Tree.md>)                     | py           | Jul 15, 2024    |
+|  230 | [Kth Smallest Element in a BST](<https://leetcode.com/problems/kth-smallest-element-in-a-bst>)                                                           | Medium  | B75, N150      | [solution](<../_230. Kth Smallest Element in a BST.md>)                               | py           | Jun 29, 2024    |
+|  235 | [Lowest Common Ancestor of a Binary Search Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree>)                         | Medium  | B75, N150      | [solution](<../_235. Lowest Common Ancestor of a Binary Search Tree.md>)              | py           | Jul 04, 2024    |
+|  236 | [Lowest Common Ancestor of a Binary Tree](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree>)                                       | Medium  | B75            | [solution](<../_236. Lowest Common Ancestor of a Binary Tree.md>)                     | py           | Jul 15, 2024    |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                               | Hard    |                | [solution](<../_272. Closest Binary Search Tree Value II.md>)                         | py           | Jul 01, 2024    |
-|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                             | Easy    |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                        | py           | Jun 12, 2024    |
-|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                             | Easy    |                | [solution](<../_341. Flatten Nested List Iterator.md>)                                | java         | Jul 02, 2024    |
-|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                 | Easy    |                | [solution](<../_366. Find Leaves of Binary Tree.md>)                                  | py           | Jun 12, 2024    |
-|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)       | Easy    |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)     | py           | Jun 12, 2024    |
-|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                     | Easy    |                | [solution](<../_429. N-ary Tree Level Order Traversal.md>)                            | py           | Jul 04, 2024    |
+|  314 | [Binary Tree Vertical Order Traversal](<https://leetcode.com/problems/binary-tree-vertical-order-traversal>)                                             | Medium  |                | [solution](<../_314. Binary Tree Vertical Order Traversal.md>)                        | py           | Jun 12, 2024    |
+|  341 | [Flatten Nested List Iterator](<https://leetcode.com/problems/flatten-nested-list-iterator>)                                                             | Medium  |                | [solution](<../_341. Flatten Nested List Iterator.md>)                                | java         | Jul 02, 2024    |
+|  366 | [Find Leaves of Binary Tree](<https://leetcode.com/problems/find-leaves-of-binary-tree>)                                                                 | Medium  |                | [solution](<../_366. Find Leaves of Binary Tree.md>)                                  | py           | Jun 12, 2024    |
+|  426 | [Convert Binary Search Tree to Sorted Doubly Linked List](<https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list>)       | Medium  |                | [solution](<../_426. Convert Binary Search Tree to Sorted Doubly Linked List.md>)     | py           | Jun 12, 2024    |
+|  429 | [N-ary Tree Level Order Traversal](<https://leetcode.com/problems/n-ary-tree-level-order-traversal>)                                                     | Medium  |                | [solution](<../_429. N-ary Tree Level Order Traversal.md>)                            | py           | Jul 04, 2024    |
 |  431 | [Encode N-ary Tree to Binary Tree](<https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree>)                                                     | Hard    |                | [solution](<../_431. Encode N-ary Tree to Binary Tree.md>)                            | java, py     | Jun 28, 2024    |
-|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                             | Easy    |                | [solution](<../_437. Path Sum III.md>)                                                | py           | Jul 03, 2024    |
-|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                             | Easy    |                | [solution](<../_450. Delete Node in a BST.md>)                                        | py           | Jun 29, 2024    |
-|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                               | Easy    |                | [solution](<../_513. Find Bottom Left Tree Value.md>)                                 | java         | Jul 03, 2024    |
+|  437 | [Path Sum III](<https://leetcode.com/problems/path-sum-iii>)                                                                                             | Medium  |                | [solution](<../_437. Path Sum III.md>)                                                | py           | Jul 03, 2024    |
+|  450 | [Delete Node in a BST](<https://leetcode.com/problems/delete-node-in-a-bst>)                                                                             | Medium  |                | [solution](<../_450. Delete Node in a BST.md>)                                        | py           | Jun 29, 2024    |
+|  513 | [Find Bottom Left Tree Value](<https://leetcode.com/problems/find-bottom-left-tree-value>)                                                               | Medium  |                | [solution](<../_513. Find Bottom Left Tree Value.md>)                                 | java         | Jul 03, 2024    |
 |  543 | [Diameter of Binary Tree](<https://leetcode.com/problems/diameter-of-binary-tree>)                                                                       | Easy    | N150           | [solution](<../_543. Diameter of Binary Tree.md>)                                     | c, java, py  | Jun 03, 2024    |
 |  572 | [Subtree of Another Tree](<https://leetcode.com/problems/subtree-of-another-tree>)                                                                       | Easy    | B75, N150      | [solution](<../_572. Subtree of Another Tree.md>)                                     | py           | Jun 03, 2024    |
 |  637 | [Average of Levels in Binary Tree](<https://leetcode.com/problems/average-of-levels-in-binary-tree>)                                                     | Easy    |                | [solution](<../_637. Average of Levels in Binary Tree.md>)                            | py           | Jul 04, 2024    |
-|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                               | Easy    |                | [solution](<../_654. Maximum Binary Tree.md>)                                         | py           | Jun 12, 2024    |
-|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                             | Easy    | Daily          | [solution](<../_663. Equal Tree Partition.md>)                                        | py           | Jun 17, 2024    |
-|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                               | Easy    |                | [solution](<../_666. Path Sum IV.md>)                                                 | py           | Jul 03, 2024    |
-|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                           | Easy    |                | [solution](<../_687. Longest Univalue Path.md>)                                       | py           | Jul 03, 2024    |
-|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                               | Easy    |                | [solution](<../_690. Employee Importance.md>)                                         | java         | Jul 02, 2024    |
+|  654 | [Maximum Binary Tree](<https://leetcode.com/problems/maximum-binary-tree>)                                                                               | Medium  |                | [solution](<../_654. Maximum Binary Tree.md>)                                         | py           | Jun 12, 2024    |
+|  663 | [Equal Tree Partition](<https://leetcode.com/problems/equal-tree-partition>)                                                                             | Medium  | Daily          | [solution](<../_663. Equal Tree Partition.md>)                                        | py           | Jun 17, 2024    |
+|  666 | [Path Sum IV](<https://leetcode.com/problems/path-sum-iv>)                                                                                               | Medium  |                | [solution](<../_666. Path Sum IV.md>)                                                 | py           | Jul 03, 2024    |
+|  687 | [Longest Univalue Path](<https://leetcode.com/problems/longest-univalue-path>)                                                                           | Medium  |                | [solution](<../_687. Longest Univalue Path.md>)                                       | py           | Jul 03, 2024    |
+|  690 | [Employee Importance](<https://leetcode.com/problems/employee-importance>)                                                                               | Medium  |                | [solution](<../_690. Employee Importance.md>)                                         | java         | Jul 02, 2024    |
 |  700 | [Search in a Binary Search Tree](<https://leetcode.com/problems/search-in-a-binary-search-tree>)                                                         | Easy    |                | [solution](<../_700. Search in a Binary Search Tree.md>)                              | c, java, py  | Jul 17, 2024    |
 |  703 | [Kth Largest Element in a Stream](<https://leetcode.com/problems/kth-largest-element-in-a-stream>)                                                       | Easy    | N150           | [solution](<../_703. Kth Largest Element in a Stream.md>)                             | py           | Jul 05, 2024    |
-|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                   | Easy    | Weekly Premium | [solution](<../_776. Split BST.md>)                                                   | py           | Jun 29, 2024    |
-|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                               | Easy    |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                         | py           | Jun 26, 2024    |
-|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                           | Easy    |                | [solution](<../_919. Complete Binary Tree Inserter.md>)                               | py           | Jul 05, 2024    |
+|  776 | [Split BST](<https://leetcode.com/problems/split-bst>)                                                                                                   | Medium  | Weekly Premium | [solution](<../_776. Split BST.md>)                                                   | py           | Jun 29, 2024    |
+|  863 | [All Nodes Distance K in Binary Tree](<https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree>)                                               | Medium  |                | [solution](<../_863. All Nodes Distance K in Binary Tree.md>)                         | py           | Jun 26, 2024    |
+|  919 | [Complete Binary Tree Inserter](<https://leetcode.com/problems/complete-binary-tree-inserter>)                                                           | Medium  |                | [solution](<../_919. Complete Binary Tree Inserter.md>)                               | py           | Jul 05, 2024    |
 |  987 | [Vertical Order Traversal of a Binary Tree](<https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree>)                                   | Hard    |                | [solution](<../_987. Vertical Order Traversal of a Binary Tree.md>)                   | py           | Jun 12, 2024    |
 |  993 | [Cousins in Binary Tree](<https://leetcode.com/problems/cousins-in-binary-tree>)                                                                         | Easy    |                | [solution](<../_993. Cousins in Binary Tree.md>)                                      | py           | Jul 04, 2024    |
-| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)             | Easy    |                | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)       | c, cpp, java | Jun 27, 2024    |
-| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                             | Easy    |                | [solution](<../_1026. Maximum Difference Between Node and Ancestor.md>)               | py           | Jun 23, 2024    |
+| 1008 | [Construct Binary Search Tree from Preorder Traversal](<https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal>)             | Medium  |                | [solution](<../_1008. Construct Binary Search Tree from Preorder Traversal.md>)       | c, cpp, java | Jun 27, 2024    |
+| 1026 | [Maximum Difference Between Node and Ancestor](<https://leetcode.com/problems/maximum-difference-between-node-and-ancestor>)                             | Medium  |                | [solution](<../_1026. Maximum Difference Between Node and Ancestor.md>)               | py           | Jun 23, 2024    |
 | 1028 | [Recover a Tree From Preorder Traversal](<https://leetcode.com/problems/recover-a-tree-from-preorder-traversal>)                                         | Hard    |                | [solution](<../_1028. Recover a Tree From Preorder Traversal.md>)                     | py           | Jul 01, 2024    |
-| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                         | Easy    | Daily          | [solution](<../_1038. Binary Search Tree to Greater Sum Tree.md>)                     | c            | Jun 26, 2024    |
-| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                         | Easy    | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                             | py           | Jul 17, 2024    |
-| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                 | Easy    |                | [solution](<../_1161. Maximum Level Sum of a Binary Tree.md>)                         | py           | Jul 17, 2024    |
-| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                 | Easy    |                | [solution](<../_1302. Deepest Leaves Sum.md>)                                         | c, js, py    | Jun 07, 2024    |
-| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                       | Easy    |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                    | java         | Jun 24, 2024    |
-| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                   | Easy    |                | [solution](<../_1315. Sum of Nodes with Even-Valued Grandparent.md>)                  | py           | Jun 12, 2024    |
-| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                             | Easy    |                | [solution](<../_1372. Longest ZigZag Path in a Binary Tree.md>)                       | py           | Jul 05, 2024    |
-| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                             | Easy    | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                               | py           | Jun 29, 2024    |
-| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                       | Easy    | N150           | [solution](<../_1448. Count Good Nodes in Binary Tree.md>)                            | java         | Jul 04, 2024    |
-| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                   | Easy    |                | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                  | py           | Jul 05, 2024    |
-| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                     | Easy    |                | [solution](<../_1490. Clone N-ary Tree.md>)                                           | java, py     | Jun 02, 2024    |
-| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                         | Easy    |                | [solution](<../_1522. Diameter of N-Ary Tree.md>)                                     | py           | Jul 03, 2024    |
-| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                       | Easy    | Daily          | [solution](<../_1530. Number of Good Leaf Nodes Pairs.md>)                            | py           | Jul 18, 2024    |
-| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                         | Easy    |                | [solution](<../_1602. Find Nearest Right Node in Binary Tree.md>)                     | java, py     | Jul 03, 2024    |
-| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                           | Easy    |                | [solution](<../_1609. Even Odd Tree.md>)                                              | py           | Jul 05, 2024    |
-| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                               | Easy    |                | [solution](<../_1650. Lowest Common Ancestor of a Binary Tree III.md>)                | py           | Jun 10, 2024    |
-| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                           | Easy    |                | [solution](<../_1660. Correct a Binary Tree.md>)                                      | py           | Jun 27, 2024    |
-| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                 | Easy    |                | [solution](<../_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                 | py           | Jun 29, 2024    |
-| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                         | Easy    | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                             | py           | Jul 15, 2024    |
-| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                       | Easy    |                | [solution](<../_1973. Count Nodes Equal to Sum of Descendants.md>)                    | c            | Jun 23, 2024    |
-| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>) | Easy    | Daily          | [solution](<../_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>) | py           | Jul 16, 2024    |
-| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                             | Easy    | Daily          | [solution](<../_2196. Create Binary Tree From Descriptions.md>)                       | py           | Jul 15, 2024    |
-| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                       | Easy    |                | [solution](<../_2265. Count Nodes Equal to Average of Subtree.md>)                    | js, py       | Jun 07, 2024    |
-| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                           | Easy    |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)              | py           | Jun 26, 2024    |
-| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                   | Easy    |                | [solution](<../_2415. Reverse Odd Levels of Binary Tree.md>)                          | py           | Jun 23, 2024    |
-| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                       | Easy    |                | [solution](<../_3157. Find the Level of Tree with Minimum Sum.md>)                    | py           | Jul 05, 2024    |
\ No newline at end of file
+| 1038 | [Binary Search Tree to Greater Sum Tree](<https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree>)                                         | Medium  | Daily          | [solution](<../_1038. Binary Search Tree to Greater Sum Tree.md>)                     | c            | Jun 26, 2024    |
+| 1110 | [Delete Nodes And Return Forest](<https://leetcode.com/problems/delete-nodes-and-return-forest>)                                                         | Medium  | Daily          | [solution](<../_1110. Delete Nodes And Return Forest.md>)                             | py           | Jul 17, 2024    |
+| 1161 | [Maximum Level Sum of a Binary Tree](<https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree>)                                                 | Medium  |                | [solution](<../_1161. Maximum Level Sum of a Binary Tree.md>)                         | py           | Jul 17, 2024    |
+| 1302 | [Deepest Leaves Sum](<https://leetcode.com/problems/deepest-leaves-sum>)                                                                                 | Medium  |                | [solution](<../_1302. Deepest Leaves Sum.md>)                                         | c, js, py    | Jun 07, 2024    |
+| 1305 | [All Elements in Two Binary Search Trees](<https://leetcode.com/problems/all-elements-in-two-binary-search-trees>)                                       | Medium  |                | [solution](<../_1305. All Elements in Two Binary Search Trees.md>)                    | java         | Jun 24, 2024    |
+| 1315 | [Sum of Nodes with Even-Valued Grandparent](<https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent>)                                   | Medium  |                | [solution](<../_1315. Sum of Nodes with Even-Valued Grandparent.md>)                  | py           | Jun 12, 2024    |
+| 1372 | [Longest ZigZag Path in a Binary Tree](<https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree>)                                             | Medium  |                | [solution](<../_1372. Longest ZigZag Path in a Binary Tree.md>)                       | py           | Jul 05, 2024    |
+| 1382 | [Balance a Binary Search Tree](<https://leetcode.com/problems/balance-a-binary-search-tree>)                                                             | Medium  | Daily          | [solution](<../_1382. Balance a Binary Search Tree.md>)                               | py           | Jun 29, 2024    |
+| 1448 | [Count Good Nodes in Binary Tree](<https://leetcode.com/problems/count-good-nodes-in-binary-tree>)                                                       | Medium  | N150           | [solution](<../_1448. Count Good Nodes in Binary Tree.md>)                            | java         | Jul 04, 2024    |
+| 1457 | [Pseudo-Palindromic Paths in a Binary Tree](<https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree>)                                   | Medium  |                | [solution](<../_1457. Pseudo-Palindromic Paths in a Binary Tree.md>)                  | py           | Jul 05, 2024    |
+| 1490 | [Clone N-ary Tree](<https://leetcode.com/problems/clone-n-ary-tree>)                                                                                     | Medium  |                | [solution](<../_1490. Clone N-ary Tree.md>)                                           | java, py     | Jun 02, 2024    |
+| 1522 | [Diameter of N-Ary Tree](<https://leetcode.com/problems/diameter-of-n-ary-tree>)                                                                         | Medium  |                | [solution](<../_1522. Diameter of N-Ary Tree.md>)                                     | py           | Jul 03, 2024    |
+| 1530 | [Number of Good Leaf Nodes Pairs](<https://leetcode.com/problems/number-of-good-leaf-nodes-pairs>)                                                       | Medium  | Daily          | [solution](<../_1530. Number of Good Leaf Nodes Pairs.md>)                            | py           | Jul 18, 2024    |
+| 1602 | [Find Nearest Right Node in Binary Tree](<https://leetcode.com/problems/find-nearest-right-node-in-binary-tree>)                                         | Medium  |                | [solution](<../_1602. Find Nearest Right Node in Binary Tree.md>)                     | java, py     | Jul 03, 2024    |
+| 1609 | [Even Odd Tree](<https://leetcode.com/problems/even-odd-tree>)                                                                                           | Medium  |                | [solution](<../_1609. Even Odd Tree.md>)                                              | py           | Jul 05, 2024    |
+| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                               | Medium  |                | [solution](<../_1650. Lowest Common Ancestor of a Binary Tree III.md>)                | py           | Jun 10, 2024    |
+| 1660 | [Correct a Binary Tree](<https://leetcode.com/problems/correct-a-binary-tree>)                                                                           | Medium  |                | [solution](<../_1660. Correct a Binary Tree.md>)                                      | py           | Jun 27, 2024    |
+| 1676 | [Lowest Common Ancestor of a Binary Tree IV](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv>)                                 | Medium  |                | [solution](<../_1676. Lowest Common Ancestor of a Binary Tree IV.md>)                 | py           | Jun 29, 2024    |
+| 1740 | [Find Distance in a Binary Tree](<https://leetcode.com/problems/find-distance-in-a-binary-tree>)                                                         | Medium  | Weekly Premium | [solution](<../_1740. Find Distance in a Binary Tree.md>)                             | py           | Jul 15, 2024    |
+| 1973 | [Count Nodes Equal to Sum of Descendants](<https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants>)                                       | Medium  |                | [solution](<../_1973. Count Nodes Equal to Sum of Descendants.md>)                    | c            | Jun 23, 2024    |
+| 2096 | [Step-By-Step Directions From a Binary Tree Node to Another](<https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another>) | Medium  | Daily          | [solution](<../_2096. Step-By-Step Directions From a Binary Tree Node to Another.md>) | py           | Jul 16, 2024    |
+| 2196 | [Create Binary Tree From Descriptions](<https://leetcode.com/problems/create-binary-tree-from-descriptions>)                                             | Medium  | Daily          | [solution](<../_2196. Create Binary Tree From Descriptions.md>)                       | py           | Jul 15, 2024    |
+| 2265 | [Count Nodes Equal to Average of Subtree](<https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree>)                                       | Medium  |                | [solution](<../_2265. Count Nodes Equal to Average of Subtree.md>)                    | js, py       | Jun 07, 2024    |
+| 2385 | [Amount of Time for Binary Tree to Be Infected](<https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected>)                           | Medium  |                | [solution](<../_2385. Amount of Time for Binary Tree to Be Infected.md>)              | py           | Jun 26, 2024    |
+| 2415 | [Reverse Odd Levels of Binary Tree](<https://leetcode.com/problems/reverse-odd-levels-of-binary-tree>)                                                   | Medium  |                | [solution](<../_2415. Reverse Odd Levels of Binary Tree.md>)                          | py           | Jun 23, 2024    |
+| 3157 | [Find the Level of Tree with Minimum Sum](<https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum>)                                       | Medium  |                | [solution](<../_3157. Find the Level of Tree with Minimum Sum.md>)                    | py           | Jul 05, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Trie.md b/markdowns/by_topic/Trie.md
index 17bf4443..f01356fe 100644
--- a/markdowns/by_topic/Trie.md
+++ b/markdowns/by_topic/Trie.md
@@ -7,20 +7,20 @@
 |    # | Title                                                                                                                        | Level   | Cats      | Solution                                                                | Languages   | Date Complete   |
 |-----:|:-----------------------------------------------------------------------------------------------------------------------------|:--------|:----------|:------------------------------------------------------------------------|:------------|:----------------|
 |   14 | [Longest Common Prefix](<https://leetcode.com/problems/longest-common-prefix>)                                               | Easy    |           | [solution](<../_14. Longest Common Prefix.md>)                          | java        | May 22, 2024    |
-|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                   | Easy    | B75, N150 | [solution](<../_208. Implement Trie (Prefix Tree).md>)                  | py          | Jun 27, 2024    |
-|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)     | Easy    | B75, N150 | [solution](<../_211. Design Add and Search Words Data Structure.md>)    | py          | Jun 27, 2024    |
+|  208 | [Implement Trie (Prefix Tree)](<https://leetcode.com/problems/implement-trie-prefix-tree>)                                   | Medium  | B75, N150 | [solution](<../_208. Implement Trie (Prefix Tree).md>)                  | py          | Jun 27, 2024    |
+|  211 | [Design Add and Search Words Data Structure](<https://leetcode.com/problems/design-add-and-search-words-data-structure>)     | Medium  | B75, N150 | [solution](<../_211. Design Add and Search Words Data Structure.md>)    | py          | Jun 27, 2024    |
 |  212 | [Word Search II](<https://leetcode.com/problems/word-search-ii>)                                                             | Hard    | B75, N150 | [solution](<../_212. Word Search II.md>)                                | py          | Jun 27, 2024    |
-|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                             | Easy    |           | [solution](<../_616. Add Bold Tag in String.md>)                        | py          | Jun 28, 2024    |
-|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                               | Easy    | Daily     | [solution](<../_648. Replace Words.md>)                                 | java, py    | Jun 07, 2024    |
-|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                     | Easy    |           | [solution](<../_676. Implement Magic Dictionary.md>)                    | py          | Jun 27, 2024    |
-|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                 | Easy    |           | [solution](<../_692. Top K Frequent Words.md>)                          | py          | Jun 09, 2024    |
-|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                     | Easy    |           | [solution](<../_720. Longest Word in Dictionary.md>)                    | py          | Jun 27, 2024    |
-|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                 | Easy    |           | [solution](<../_758. Bold Words in String.md>)                          | py          | Jun 28, 2024    |
-| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                     | Easy    |           | [solution](<../_1166. Design File System.md>)                           | py          | Jun 28, 2024    |
-| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)             | Easy    |           | [solution](<../_1233. Remove Sub-Folders from the Filesystem.md>)       | py          | Jun 28, 2024    |
-| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                       | Easy    |           | [solution](<../_1268. Search Suggestions System.md>)                    | py          | Jun 29, 2024    |
-| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)       | Easy    |           | [solution](<../_1698. Number of Distinct Substrings in a String.md>)    | java, py    | Jun 02, 2024    |
-| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                             | Easy    |           | [solution](<../_1804. Implement Trie II (Prefix Tree).md>)              | py          | Jun 27, 2024    |
-| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                             | Easy    |           | [solution](<../_1858. Longest Word With All Prefixes.md>)               | py          | Jun 29, 2024    |
-| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>) | Easy    |           | [solution](<../_3043. Find the Length of the Longest Common Prefix.md>) | py          | Jun 28, 2024    |
+|  616 | [Add Bold Tag in String](<https://leetcode.com/problems/add-bold-tag-in-string>)                                             | Medium  |           | [solution](<../_616. Add Bold Tag in String.md>)                        | py          | Jun 28, 2024    |
+|  648 | [Replace Words](<https://leetcode.com/problems/replace-words>)                                                               | Medium  | Daily     | [solution](<../_648. Replace Words.md>)                                 | java, py    | Jun 07, 2024    |
+|  676 | [Implement Magic Dictionary](<https://leetcode.com/problems/implement-magic-dictionary>)                                     | Medium  |           | [solution](<../_676. Implement Magic Dictionary.md>)                    | py          | Jun 27, 2024    |
+|  692 | [Top K Frequent Words](<https://leetcode.com/problems/top-k-frequent-words>)                                                 | Medium  |           | [solution](<../_692. Top K Frequent Words.md>)                          | py          | Jun 09, 2024    |
+|  720 | [Longest Word in Dictionary](<https://leetcode.com/problems/longest-word-in-dictionary>)                                     | Medium  |           | [solution](<../_720. Longest Word in Dictionary.md>)                    | py          | Jun 27, 2024    |
+|  758 | [Bold Words in String](<https://leetcode.com/problems/bold-words-in-string>)                                                 | Medium  |           | [solution](<../_758. Bold Words in String.md>)                          | py          | Jun 28, 2024    |
+| 1166 | [Design File System](<https://leetcode.com/problems/design-file-system>)                                                     | Medium  |           | [solution](<../_1166. Design File System.md>)                           | py          | Jun 28, 2024    |
+| 1233 | [Remove Sub-Folders from the Filesystem](<https://leetcode.com/problems/remove-sub-folders-from-the-filesystem>)             | Medium  |           | [solution](<../_1233. Remove Sub-Folders from the Filesystem.md>)       | py          | Jun 28, 2024    |
+| 1268 | [Search Suggestions System](<https://leetcode.com/problems/search-suggestions-system>)                                       | Medium  |           | [solution](<../_1268. Search Suggestions System.md>)                    | py          | Jun 29, 2024    |
+| 1698 | [Number of Distinct Substrings in a String](<https://leetcode.com/problems/number-of-distinct-substrings-in-a-string>)       | Medium  |           | [solution](<../_1698. Number of Distinct Substrings in a String.md>)    | java, py    | Jun 02, 2024    |
+| 1804 | [Implement Trie II (Prefix Tree)](<https://leetcode.com/problems/implement-trie-ii-prefix-tree>)                             | Medium  |           | [solution](<../_1804. Implement Trie II (Prefix Tree).md>)              | py          | Jun 27, 2024    |
+| 1858 | [Longest Word With All Prefixes](<https://leetcode.com/problems/longest-word-with-all-prefixes>)                             | Medium  |           | [solution](<../_1858. Longest Word With All Prefixes.md>)               | py          | Jun 29, 2024    |
+| 3043 | [Find the Length of the Longest Common Prefix](<https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix>) | Medium  |           | [solution](<../_3043. Find the Length of the Longest Common Prefix.md>) | py          | Jun 28, 2024    |
 | 3045 | [Count Prefix and Suffix Pairs II](<https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii>)                         | Hard    |           | [solution](<../_3045. Count Prefix and Suffix Pairs II.md>)             | py          | Jun 29, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Two Pointers.md b/markdowns/by_topic/Two Pointers.md
index c73d4b53..babb811e 100644
--- a/markdowns/by_topic/Two Pointers.md	
+++ b/markdowns/by_topic/Two Pointers.md	
@@ -6,49 +6,49 @@
 
 |    # | Title                                                                                                                                                          | Level   | Cats           | Solution                                                                                | Languages                        | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:----------------------------------------------------------------------------------------|:---------------------------------|:----------------|
-|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                 | Easy    | B75, N150      | [solution](<../_5. Longest Palindromic Substring.md>)                                   | py                               | Jul 05, 2024    |
-|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                           | Easy    | B75, N150      | [solution](<../_19. Remove Nth Node From End of List.md>)                               | c, java, py                      | Jun 07, 2024    |
+|    5 | [Longest Palindromic Substring](<https://leetcode.com/problems/longest-palindromic-substring>)                                                                 | Medium  | B75, N150      | [solution](<../_5. Longest Palindromic Substring.md>)                                   | py                               | Jul 05, 2024    |
+|   19 | [Remove Nth Node From End of List](<https://leetcode.com/problems/remove-nth-node-from-end-of-list>)                                                           | Medium  | B75, N150      | [solution](<../_19. Remove Nth Node From End of List.md>)                               | c, java, py                      | Jun 07, 2024    |
 |   26 | [Remove Duplicates from Sorted Array](<https://leetcode.com/problems/remove-duplicates-from-sorted-array>)                                                     | Easy    |                | [solution](<../_26. Remove Duplicates from Sorted Array.md>)                            | java                             | May 22, 2024    |
 |   27 | [Remove Element](<https://leetcode.com/problems/remove-element>)                                                                                               | Easy    |                | [solution](<../_27. Remove Element.md>)                                                 | java, py                         | Jun 02, 2024    |
 |   28 | [Find the Index of the First Occurrence in a String](<https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string>)                       | Easy    |                | [solution](<../_28. Find the Index of the First Occurrence in a String.md>)             | py                               | May 22, 2024    |
-|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                     | Easy    |                | [solution](<../_61. Rotate List.md>)                                                    | py                               | Jun 22, 2024    |
-|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                     | Easy    | Daily          | [solution](<../_75. Sort Colors.md>)                                                    | c, py                            | Jun 12, 2024    |
-|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                 | Easy    |                | [solution](<../_82. Remove Duplicates from Sorted List II.md>)                          | py                               | Jul 04, 2024    |
+|   61 | [Rotate List](<https://leetcode.com/problems/rotate-list>)                                                                                                     | Medium  |                | [solution](<../_61. Rotate List.md>)                                                    | py                               | Jun 22, 2024    |
+|   75 | [Sort Colors](<https://leetcode.com/problems/sort-colors>)                                                                                                     | Medium  | Daily          | [solution](<../_75. Sort Colors.md>)                                                    | c, py                            | Jun 12, 2024    |
+|   82 | [Remove Duplicates from Sorted List II](<https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii>)                                                 | Medium  |                | [solution](<../_82. Remove Duplicates from Sorted List II.md>)                          | py                               | Jul 04, 2024    |
 |  125 | [Valid Palindrome](<https://leetcode.com/problems/valid-palindrome>)                                                                                           | Easy    | B75, N150      | [solution](<../_125. Valid Palindrome.md>)                                              | c, py                            | Jun 07, 2024    |
 |  141 | [Linked List Cycle](<https://leetcode.com/problems/linked-list-cycle>)                                                                                         | Easy    | B75, N150      | [solution](<../_141. Linked List Cycle.md>)                                             | c, py                            | Jun 04, 2024    |
-|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                   | Easy    |                | [solution](<../_142. Linked List Cycle II.md>)                                          | py                               | Jun 26, 2024    |
-|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                   | Easy    | B75, N150      | [solution](<../_143. Reorder List.md>)                                                  | java, py                         | Jun 11, 2024    |
-|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                             | Easy    |                | [solution](<../_165. Compare Version Numbers.md>)                                       | c, py                            | Jul 02, 2024    |
-|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                         | Easy    | N150           | [solution](<../_167. Two Sum II - Input Array Is Sorted.md>)                            | py                               | Jun 14, 2024    |
-|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                   | Easy    |                | [solution](<../_189. Rotate Array.md>)                                                  | py                               | Jun 02, 2024    |
-|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                         | Easy    |                | [solution](<../_251. Flatten 2D Vector.md>)                                             | py                               | May 22, 2024    |
+|  142 | [Linked List Cycle II](<https://leetcode.com/problems/linked-list-cycle-ii>)                                                                                   | Medium  |                | [solution](<../_142. Linked List Cycle II.md>)                                          | py                               | Jun 26, 2024    |
+|  143 | [Reorder List](<https://leetcode.com/problems/reorder-list>)                                                                                                   | Medium  | B75, N150      | [solution](<../_143. Reorder List.md>)                                                  | java, py                         | Jun 11, 2024    |
+|  165 | [Compare Version Numbers](<https://leetcode.com/problems/compare-version-numbers>)                                                                             | Medium  |                | [solution](<../_165. Compare Version Numbers.md>)                                       | c, py                            | Jul 02, 2024    |
+|  167 | [Two Sum II - Input Array Is Sorted](<https://leetcode.com/problems/two-sum-ii-input-array-is-sorted>)                                                         | Medium  | N150           | [solution](<../_167. Two Sum II - Input Array Is Sorted.md>)                            | py                               | Jun 14, 2024    |
+|  189 | [Rotate Array](<https://leetcode.com/problems/rotate-array>)                                                                                                   | Medium  |                | [solution](<../_189. Rotate Array.md>)                                                  | py                               | Jun 02, 2024    |
+|  251 | [Flatten 2D Vector](<https://leetcode.com/problems/flatten-2d-vector>)                                                                                         | Medium  |                | [solution](<../_251. Flatten 2D Vector.md>)                                             | py                               | May 22, 2024    |
 |  272 | [Closest Binary Search Tree Value II](<https://leetcode.com/problems/closest-binary-search-tree-value-ii>)                                                     | Hard    |                | [solution](<../_272. Closest Binary Search Tree Value II.md>)                           | py                               | Jul 01, 2024    |
-|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                         | Easy    | N150           | [solution](<../_287. Find the Duplicate Number.md>)                                     | c                                | Jun 26, 2024    |
+|  287 | [Find the Duplicate Number](<https://leetcode.com/problems/find-the-duplicate-number>)                                                                         | Medium  | N150           | [solution](<../_287. Find the Duplicate Number.md>)                                     | c                                | Jun 26, 2024    |
 |  344 | [Reverse String](<https://leetcode.com/problems/reverse-string>)                                                                                               | Easy    | Daily          | [solution](<../_344. Reverse String.md>)                                                | java, py                         | Jun 02, 2024    |
 |  345 | [Reverse Vowels of a String](<https://leetcode.com/problems/reverse-vowels-of-a-string>)                                                                       | Easy    |                | [solution](<../_345. Reverse Vowels of a String.md>)                                    | py                               | May 23, 2024    |
 |  350 | [Intersection of Two Arrays II](<https://leetcode.com/problems/intersection-of-two-arrays-ii>)                                                                 | Easy    | Daily          | [solution](<../_350. Intersection of Two Arrays II.md>)                                 | java, py                         | Jul 02, 2024    |
 |  392 | [Is Subsequence](<https://leetcode.com/problems/is-subsequence>)                                                                                               | Easy    |                | [solution](<../_392. Is Subsequence.md>)                                                | java                             | Jun 22, 2024    |
 |  408 | [Valid Word Abbreviation](<https://leetcode.com/problems/valid-word-abbreviation>)                                                                             | Easy    |                | [solution](<../_408. Valid Word Abbreviation.md>)                                       | py                               | Jun 02, 2024    |
-|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                             | Easy    |                | [solution](<../_475. Heaters.md>)                                                       | py                               | Jun 07, 2024    |
-|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                 | Easy    | N150           | [solution](<../_567. Permutation in String.md>)                                         | py                               | Jul 06, 2024    |
-|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                 | Easy    |                | [solution](<../_611. Valid Triangle Number.md>)                                         | py                               | May 22, 2024    |
-|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                               | Easy    | B75, N150      | [solution](<../_647. Palindromic Substrings.md>)                                        | py                               | Jul 05, 2024    |
-|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                       | Easy    | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                                    | py                               | Jun 18, 2024    |
+|  475 | [Heaters](<https://leetcode.com/problems/heaters>)                                                                                                             | Medium  |                | [solution](<../_475. Heaters.md>)                                                       | py                               | Jun 07, 2024    |
+|  567 | [Permutation in String](<https://leetcode.com/problems/permutation-in-string>)                                                                                 | Medium  | N150           | [solution](<../_567. Permutation in String.md>)                                         | py                               | Jul 06, 2024    |
+|  611 | [Valid Triangle Number](<https://leetcode.com/problems/valid-triangle-number>)                                                                                 | Medium  |                | [solution](<../_611. Valid Triangle Number.md>)                                         | py                               | May 22, 2024    |
+|  647 | [Palindromic Substrings](<https://leetcode.com/problems/palindromic-substrings>)                                                                               | Medium  | B75, N150      | [solution](<../_647. Palindromic Substrings.md>)                                        | py                               | Jul 05, 2024    |
+|  826 | [Most Profit Assigning Work](<https://leetcode.com/problems/most-profit-assigning-work>)                                                                       | Medium  | Daily          | [solution](<../_826. Most Profit Assigning Work.md>)                                    | py                               | Jun 18, 2024    |
 |  977 | [Squares of a Sorted Array](<https://leetcode.com/problems/squares-of-a-sorted-array>)                                                                         | Easy    |                | [solution](<../_977. Squares of a Sorted Array.md>)                                     | py                               | Jun 21, 2024    |
-| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                               | Easy    |                | [solution](<../_1265. Print Immutable Linked List in Reverse.md>)                       | c, py                            | Jun 06, 2024    |
+| 1265 | [Print Immutable Linked List in Reverse](<https://leetcode.com/problems/print-immutable-linked-list-in-reverse>)                                               | Medium  |                | [solution](<../_1265. Print Immutable Linked List in Reverse.md>)                       | c, py                            | Jun 06, 2024    |
 | 1455 | [Check If a Word Occurs As a Prefix of Any Word in a Sentence](<https://leetcode.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence>)   | Easy    |                | [solution](<../_1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence.md>) | py                               | Jun 01, 2024    |
-| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                         | Easy    |                | [solution](<../_1570. Dot Product of Two Sparse Vectors.md>)                            | c, java, py                      | Jun 06, 2024    |
-| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                     | Easy    |                | [solution](<../_1650. Lowest Common Ancestor of a Binary Tree III.md>)                  | py                               | Jun 10, 2024    |
-| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                             | Easy    |                | [solution](<../_1721. Swapping Nodes in a Linked List.md>)                              | c                                | Jun 07, 2024    |
+| 1570 | [Dot Product of Two Sparse Vectors](<https://leetcode.com/problems/dot-product-of-two-sparse-vectors>)                                                         | Medium  |                | [solution](<../_1570. Dot Product of Two Sparse Vectors.md>)                            | c, java, py                      | Jun 06, 2024    |
+| 1650 | [Lowest Common Ancestor of a Binary Tree III](<https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii>)                                     | Medium  |                | [solution](<../_1650. Lowest Common Ancestor of a Binary Tree III.md>)                  | py                               | Jun 10, 2024    |
+| 1721 | [Swapping Nodes in a Linked List](<https://leetcode.com/problems/swapping-nodes-in-a-linked-list>)                                                             | Medium  |                | [solution](<../_1721. Swapping Nodes in a Linked List.md>)                              | c                                | Jun 07, 2024    |
 | 1768 | [Merge Strings Alternately](<https://leetcode.com/problems/merge-strings-alternately>)                                                                         | Easy    |                | [solution](<../_1768. Merge Strings Alternately.md>)                                    | java                             | Jul 01, 2024    |
-| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                       | Easy    |                | [solution](<../_1877. Minimize Maximum Pair Sum in Array.md>)                           | py                               | Jun 23, 2024    |
-| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                         | Easy    | Weekly Premium | [solution](<../_1885. Count Pairs in Two Arrays.md>)                                    | py                               | Jun 08, 2024    |
-| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                 | Easy    |                | [solution](<../_2046. Sort Linked List Already Sorted Using Absolute Values.md>)        | py                               | Jul 04, 2024    |
-| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                             | Easy    |                | [solution](<../_2095. Delete the Middle Node of a Linked List.md>)                      | c, java                          | Jun 07, 2024    |
-| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                         | Easy    |                | [solution](<../_2130. Maximum Twin Sum of a Linked List.md>)                            | py                               | Jun 21, 2024    |
-| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                           | Easy    |                | [solution](<../_2149. Rearrange Array Elements by Sign.md>)                             | c, py                            | Jun 10, 2024    |
-| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                     | Easy    |                | [solution](<../_2396. Strictly Palindromic Number.md>)                                  | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
-| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                             | Easy    | Daily          | [solution](<../_2486. Append Characters to String to Make Subsequence.md>)              | c, java, py                      | Jun 03, 2024    |
+| 1877 | [Minimize Maximum Pair Sum in Array](<https://leetcode.com/problems/minimize-maximum-pair-sum-in-array>)                                                       | Medium  |                | [solution](<../_1877. Minimize Maximum Pair Sum in Array.md>)                           | py                               | Jun 23, 2024    |
+| 1885 | [Count Pairs in Two Arrays](<https://leetcode.com/problems/count-pairs-in-two-arrays>)                                                                         | Medium  | Weekly Premium | [solution](<../_1885. Count Pairs in Two Arrays.md>)                                    | py                               | Jun 08, 2024    |
+| 2046 | [Sort Linked List Already Sorted Using Absolute Values](<https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values>)                 | Medium  |                | [solution](<../_2046. Sort Linked List Already Sorted Using Absolute Values.md>)        | py                               | Jul 04, 2024    |
+| 2095 | [Delete the Middle Node of a Linked List](<https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list>)                                             | Medium  |                | [solution](<../_2095. Delete the Middle Node of a Linked List.md>)                      | c, java                          | Jun 07, 2024    |
+| 2130 | [Maximum Twin Sum of a Linked List](<https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list>)                                                         | Medium  |                | [solution](<../_2130. Maximum Twin Sum of a Linked List.md>)                            | py                               | Jun 21, 2024    |
+| 2149 | [Rearrange Array Elements by Sign](<https://leetcode.com/problems/rearrange-array-elements-by-sign>)                                                           | Medium  |                | [solution](<../_2149. Rearrange Array Elements by Sign.md>)                             | c, py                            | Jun 10, 2024    |
+| 2396 | [Strictly Palindromic Number](<https://leetcode.com/problems/strictly-palindromic-number>)                                                                     | Medium  |                | [solution](<../_2396. Strictly Palindromic Number.md>)                                  | c, cpp, java, js, kt, py, rb, rs | Jun 09, 2024    |
+| 2486 | [Append Characters to String to Make Subsequence](<https://leetcode.com/problems/append-characters-to-string-to-make-subsequence>)                             | Medium  | Daily          | [solution](<../_2486. Append Characters to String to Make Subsequence.md>)              | c, java, py                      | Jun 03, 2024    |
 | 2570 | [Merge Two 2D Arrays by Summing Values](<https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values>)                                                 | Easy    |                | [solution](<../_2570. Merge Two 2D Arrays by Summing Values.md>)                        | c                                | Jun 10, 2024    |
-| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                   | Easy    | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                      | py                               | Jul 07, 2024    |
+| 3186 | Weekly Contest 402 - q3 - [Maximum Total Damage With Spell Casting](<https://leetcode.com/problems/maximum-total-damage-with-spell-casting>)                   | Medium  | Contest        | [solution](<../_3186. Maximum Total Damage With Spell Casting.md>)                      | py                               | Jul 07, 2024    |
 | 3194 | Weekly Contest 403 - q1 - [Minimum Average of Smallest and Largest Elements](<https://leetcode.com/problems/minimum-average-of-smallest-and-largest-elements>) | Easy    | Contest        | [solution](<../_3194. Minimum Average of Smallest and Largest Elements.md>)             | py                               | Jul 07, 2024    |
\ No newline at end of file
diff --git a/markdowns/by_topic/Union Find.md b/markdowns/by_topic/Union Find.md
index f5e939b1..7fa0298f 100644
--- a/markdowns/by_topic/Union Find.md	
+++ b/markdowns/by_topic/Union Find.md	
@@ -6,11 +6,11 @@
 
 |    # | Title                                                                                                                                                    | Level   | Cats           | Solution                                                                              | Languages   | Date Complete   |
 |-----:|:---------------------------------------------------------------------------------------------------------------------------------------------------------|:--------|:---------------|:--------------------------------------------------------------------------------------|:------------|:----------------|
-|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                             | Easy    | B75, N150      | [solution](<../_128. Longest Consecutive Sequence.md>)                                | java, py    | Jun 13, 2024    |
-|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                   | Easy    | B75, N150      | [solution](<../_200. Number of Islands.md>)                                           | py          | Jun 17, 2024    |
-|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                 | Easy    | N150           | [solution](<../_695. Max Area of Island.md>)                                          | c           | Jun 24, 2024    |
-| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                 | Easy    |                | [solution](<../_1020. Number of Enclaves.md>)                                         | py          | Jun 26, 2024    |
-| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                     | Easy    | Weekly Premium | [solution](<../_1101. The Earliest Moment When Everyone Become Friends.md>)           | py          | Jul 04, 2024    |
-| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                     | Easy    |                | [solution](<../_1254. Number of Closed Islands.md>)                                   | py          | Jun 26, 2024    |
+|  128 | [Longest Consecutive Sequence](<https://leetcode.com/problems/longest-consecutive-sequence>)                                                             | Medium  | B75, N150      | [solution](<../_128. Longest Consecutive Sequence.md>)                                | java, py    | Jun 13, 2024    |
+|  200 | [Number of Islands](<https://leetcode.com/problems/number-of-islands>)                                                                                   | Medium  | B75, N150      | [solution](<../_200. Number of Islands.md>)                                           | py          | Jun 17, 2024    |
+|  695 | [Max Area of Island](<https://leetcode.com/problems/max-area-of-island>)                                                                                 | Medium  | N150           | [solution](<../_695. Max Area of Island.md>)                                          | c           | Jun 24, 2024    |
+| 1020 | [Number of Enclaves](<https://leetcode.com/problems/number-of-enclaves>)                                                                                 | Medium  |                | [solution](<../_1020. Number of Enclaves.md>)                                         | py          | Jun 26, 2024    |
+| 1101 | [The Earliest Moment When Everyone Become Friends](<https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends>)                     | Medium  | Weekly Premium | [solution](<../_1101. The Earliest Moment When Everyone Become Friends.md>)           | py          | Jul 04, 2024    |
+| 1254 | [Number of Closed Islands](<https://leetcode.com/problems/number-of-closed-islands>)                                                                     | Medium  |                | [solution](<../_1254. Number of Closed Islands.md>)                                   | py          | Jun 26, 2024    |
 | 1579 | [Remove Max Number of Edges to Keep Graph Fully Traversable](<https://leetcode.com/problems/remove-max-number-of-edges-to-keep-graph-fully-traversable>) | Hard    | Daily          | [solution](<../_1579. Remove Max Number of Edges to Keep Graph Fully Traversable.md>) | py          | Jun 30, 2024    |
-| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                   | Easy    |                | [solution](<../_1905. Count Sub Islands.md>)                                          | py          | Jun 24, 2024    |
\ No newline at end of file
+| 1905 | [Count Sub Islands](<https://leetcode.com/problems/count-sub-islands>)                                                                                   | Medium  |                | [solution](<../_1905. Count Sub Islands.md>)                                          | py          | Jun 24, 2024    |
\ No newline at end of file