23 lines
597 B
Markdown
23 lines
597 B
Markdown
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An array is monotonic if it is either monotone increasing or monotone decreasing.
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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]`.
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Given an integer array `nums`, return `true`_if the given array is monotonic, or _`false`_otherwise_.
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Example 1:
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Input: nums = [1,2,2,3] Output: true
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Example 2:
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Input: nums = [6,5,4,4] Output: true
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Example 3:
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Input: nums = [1,3,2] Output: false
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Constraints:
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* `1 <= nums.length <= 105`
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* `-105 <= nums[i] <= 105`
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