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Range Sum of Sorted Subarray Sums

Explore how to compute sums for every subarray, organize these sums in a sorted array, and efficiently find the sum within a specified index range. This lesson helps you master sorting and searching strategies to solve range sum problems on sorted subarray sums, strengthening your ability to handle array manipulation and optimization challenges.

Statement

You are given an integer array nums containing nn positive integers along with left and right. Calculate the sum of its elements for every non-empty continuous subarray of nums. Collect these sums into a new array and sort it in nondecreasing order. This will result in a new array of size n×(n+1)/2n \times (n + 1) /2 ...