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Md Ariful Haque @mah-shamim

Maximum Sum Of 3 Non-Overlapping Subarrays In PHP

We use dynamic programming to find 3 non-overlapping subarrays of length k with max sum in an array nums, returning the lexicographically smallest solution if multiple exist.

689. Maximum Sum of 3 Non-Overlapping Subarrays
Difficulty: Hard
Topics: Array, Dynamic Programming
Given an integer array nums and an integer k, find three non-overlapping subarrays of length k with maximum sum and return them.
Return the result as a list of indices representing the starting position of each interval (0-indexed). If there are multiple answers, return the lexicographically smallest one.
Example 1:

Input: nums = [1,2,1,2,6,7,5,1], k = 2
Output: [0,3,5]
Explanation: Subarrays [1, 2], [2, 6], [7, 5] correspond to the starting indices [0, 3, 5].

We could have also taken [2, 1],...