Question

Write a function solution that, given an array A consisting of N integers, returns the number of fragements of A whose sum equals 0 (that is, pairs (p,q) such that P

Answer 1

Answer:

#include <iostream>

using namespace std;

void fragment(int arr[], int n){

   for (int i = 0; i < n; i++){

       for (int x = 0; x < n; x++){

           if (x != i && arr[i] + arr[x] == 0){

               cout<< arr[i] << " , " << arr[x];

           }

       }

   }

}

int main(){

   int n = 7;

   int myArr = {1, 2, -1, -2, 0, 0, 3};

   fragment(myArr, n);

}

Explanation:

The C++ source code defines an array called "myArr" in the main program and its array size n. The void function "fragment" prints out the pairs of the array whose sum equates to zero.