Monotonic_array.py

# An array is monotonic if it is either monotone increasing or monotone decreasing.

# An array nums is monotone increasing if for all i <= j, nums[i] <= nums[j]. An array nums is monotone decreasing if for all i <= j, nums[i] >= nums[j].

# Given an integer array nums, return true if the given array is monotonic, or false otherwise.

# Example 1:

# Input: nums = [1,2,2,3]
# Output: true
# Example 2:

# Input: nums = [6,5,4,4]
# Output: true
# Example 3:

# Input: nums = [1,3,2]
# Output: false

class Solution:
    def isMonotonic(self, nums: List[int]) -> bool:
        increasing = sorted(nums)
        decreasing = sorted(nums, reverse=True)
        
        if nums == sorted(nums) or nums == sorted(nums, reverse=True):
            return True
        else:
            return False