Sum of Three Numbers Using C++

A simple program that I wrote using C++ as my programming language that will compute the sum of three numbers using functions and structure. The code is very simple and easy to understand.

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Program Listing

#include <iostream>

using namespace std;

struct num {

     int value[3];

 };

int addition(num a)

 {

     return(a.value[0] +

            a.value[1] +

            a.value[2]);

 }

 main() {

        num b;

        cout << "\t Sum of Three Numbers ";

        cout << "\n\n";

        cout << "Enter three numbers : ";

        cin >> b.value[0] >> b.value[1] >> b.value[2];

        cout << "\n\n";

        cout << "The sum is "  <<addition(b);

        cout << "\n\n";

        system("pause");

 }