This is an example program that demonstrates how you can perform the addition of two user given numbers in C++.

In this program first we are taking two integer numbers from the user, and then displaying the result of addition into the console.

Program

#include <iostream>

using namespace std;

int main() {

    int num1, num2, sum;

    cout << "Enter 1st number : ";
    cin >> num1;

    cout << endl << "Enter 2nd number : ";
    cin >> num2;

    sum = num1 + num2;

    cout << endl << "Result = " << sum;

    return 0;
}

Output

Enter 1st number : 10
Enter 2nd number : 40
Result = 50