Addition of Three Numbers Using Functions in C++

 A simple program to ask the user to give three numbers and then the program will compute the sum of three numbers using a function in C++ programming language.

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Program Listing

#include <iostream>

using namespace std;

int add_three_numbers(int x, int y, int c)

{

    return(x+y+c);

}

int main(){

   int a=0,b=0,c=0;

   int sum=0;

   cout <<"\n\n";

   cout << "\tAddition of Three Numbers Using Functions in C++";

   cout <<"\n\n";

   cout << "\tEnter Three Numbers : ";

   cin >> a >> b >> c;

   sum = add_three_numbers(a,b,c);

   cout <<"\n\n";

   cout << "\tThe sum of " << a << ", " << b << " and "

        << c << " is " << sum << ".";

   cout <<"\n\n";

   cout <<"\tEnd of Program";

   cout <<"\n\n";

}