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DIY: Maximum Sum of Three Non-Overlapping Arrays

Explore how to identify three non-overlapping subarrays each of size k that maximize their combined sum. This lesson guides you through solving the problem with Ruby, focusing on returning the lexicographically smallest starting indices. You will improve your algorithmic thinking and problem-solving skills for coding interviews.

Problem statement

In this challenge, you are given an array of integers as input. Your task is to find three non-overlapping subarrays of the given array that have the maximum sum. The subarray should be of size ...