Linked List (40 completed) Back to top # Title Level Cats Solution Languages Date Complete 2 Add Two Numbers Medium N150 solution java May 22, 2024 19 Remove Nth Node From End of List Medium B75, N150 solution c, java, py Jun 07, 2024 21 Merge Two Sorted Lists Easy B75, N150 solution java May 22, 2024 23 Merge k Sorted Lists Hard B75, N150 solution py Jun 17, 2024 24 Swap Nodes in Pairs Medium solution c Jun 07, 2024 25 Reverse Nodes in k-Group Hard N150 solution c Jun 07, 2024 61 Rotate List Medium solution py Jun 22, 2024 82 Remove Duplicates from Sorted List II Medium solution py Jul 04, 2024 114 Flatten Binary Tree to Linked List Medium solution c, py Jun 11, 2024 138 Copy List with Random Pointer Medium N150 solution py Jun 27, 2024 141 Linked List Cycle Easy B75, N150 solution c, py Jun 04, 2024 142 Linked List Cycle II Medium solution py Jun 26, 2024 143 Reorder List Medium B75, N150 solution java, py Jun 11, 2024 206 Reverse Linked List Easy B75, N150 solution java Jun 27, 2024 328 Odd Even Linked List Medium solution py Jun 22, 2024 369 Plus One Linked List Medium solution c Jul 04, 2024 382 Linked List Random Node Medium solution c, java, py Jun 22, 2024 426 Convert Binary Search Tree to Sorted Doubly Linked List Medium solution py Jun 12, 2024 430 Flatten a Multilevel Doubly Linked List Medium solution cpp, java Jun 27, 2024 622 Design Circular Queue Medium solution py Jul 06, 2024 707 Design Linked List Medium solution java Jun 22, 2024 708 Insert into a Sorted Circular Linked List Medium solution py Jun 22, 2024 725 Split Linked List in Parts Medium solution py Jun 22, 2024 817 Linked List Components Medium solution java Jul 04, 2024 1019 Next Greater Node In Linked List Medium solution py Jun 22, 2024 1171 Remove Zero Sum Consecutive Nodes from Linked List Medium solution py Jun 15, 2024 1265 Print Immutable Linked List in Reverse Medium solution c, py Jun 06, 2024 1472 Design Browser History Medium solution py Jul 06, 2024 1474 Delete N Nodes After M Nodes of a Linked List Easy solution c, java Jun 07, 2024 1669 Merge In Between Linked Lists Medium solution c Jun 24, 2024 1721 Swapping Nodes in a Linked List Medium solution c Jun 07, 2024 1836 Remove Duplicates From an Unsorted Linked List Medium Weekly Premium solution java, py Jul 08, 2024 2046 Sort Linked List Already Sorted Using Absolute Values Medium solution py Jul 04, 2024 2058 Find the Minimum and Maximum Number of Nodes Between Critical Points Medium Daily solution cpp, java, py Jul 05, 2024 2095 Delete the Middle Node of a Linked List Medium solution c, java Jun 07, 2024 2130 Maximum Twin Sum of a Linked List Medium solution py Jun 21, 2024 2181 Merge Nodes in Between Zeros Medium Daily solution c, cpp, java, py Jul 04, 2024 2487 Remove Nodes From Linked List Medium solution py Jun 12, 2024 2807 Insert Greatest Common Divisors in Linked List Medium solution py Jun 13, 2024 2816 Double a Number Represented as a Linked List Medium solution c Jul 04, 2024