// Simple Java program to compute sum of // subarray elements classGFG { // Computes sum all sub-array publicstaticlongSubArraySum(intarr[],intn) { longresult = 0; // Pick starting point for(inti = 0; i < n; i ++) { // Pick ending point for(intj = i; j < n; j ++) {...
Naive Solution – A simple solution is to traverse each element and check if there’s another number in the array which can be added to it to give sum. // C# implementation of simple // method to find count of // pairs with given sum. using System; class GFG { public static void...
For every indexiwe'll try and find the smallest length subarray such that it ends at positioniand it's sum is >= k.pref[i]is equal to the prefix sum of the array that ends at positioni. So if we're looking at positioniand we don't plan on taking the entire prefix we know tha...