#896
Monotonic Array
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Description
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
Solution