You are given an integer array and a positive integer K. You have to tell if there exists i,j,k in the given array such that ar[i]+ar[j]+ar[k]=K, i≠j≠k. Input Format The first line of input contains T ...

What is the prefix sum array problem? The prefix sum problem in computer science is a popular programming puzzle used to test the array handling skills of software developers. The prefix sum problem ...