If You Can't Solve This Coding Question, You Will Have A Rough Time During the Amazon Interview
LeetCode 594. Longest Harmonious Subsequence
We define a harmonious array as an array where the difference between its maximum value and its minimum value is exactly 1.
Given an integer array nums, return the length of its longest harmonious subsequence among all its possible subsequences.
A subsequence of array is a sequence that can be derived from the array by deleting some or no elements without changing the order of the remaining elements.
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Time Complexity = O(n), where ‘n' is the length of the input array
Space Complexity = O(n), where ‘n' is the length of the input array
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