3105. Longest Strictly Increasing or Strictly Decreasing Subarray

3105. Longest Strictly Increasing or Strictly Decreasing Subarray #leetcodequestionandanswers #java #coding #array #greedyalgorithm #javainterviewquestions #interview #amazoninterviewpreparation #googleinterview #leetcode #javaprogramming #dsa #dsalgo #programming #hashmap
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You are given an array of integers nums. Return the length of the longest
subarray
of nums which is either
strictly increasing
or
strictly decreasing
.
Example 1:
Input: nums = [1,4,3,3,2]
Output: 2
Explanation:
The strictly increasing subarrays of nums are [1], [2], [3], [3], [4], and [1,4].
The strictly decreasing subarrays of nums are [1], [2], [3], [3], [4], [3,2], and [4,3].
Hence, we return 2.
Example 2:
Input: nums = [3,3,3,3]
Output: 1
Explanation:
The strictly increasing subarrays of nums are [3], [3], [3], and [3].
The strictly decreasing subarrays of nums are [3], [3], [3], and [3].
Hence, we return 1.
Example 3:
Input: nums = [3,2,1]
Output: 3
Explanation:
The strictly increasing subarrays of nums are [3], [2], and [1].
The strictly decreasing subarrays of nums are [3], [2], [1], [3,2], [2,1], and [3,2,1].
Hence, we return 3.

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