/*You are given an integer array A of length N. You have to find the sum of all subarray sums of A. More formally, a subarray is defined as a contiguous part of an array which we can obtain by ...

//You are given an integer array A of length N. //You are also given a 2D integer array B with dimensions M x 2, where each row denotes a [L, R] query. //For each query, you have to find the sum of ...