Addition and Subtraction of Another Number in C++

 I wrote this program as a request of one of my subscriber in my youtube channel. This program that will ask the user to give two numbers and then the program will compute the sum of the two numbers. After which the program display two options to add and to substract the sum of two number by given a number value using if else statement in C++.  

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Program Listing

// addition_subtraction.cpp

// Jake Rodriguez Pomperada, MAED-IT, MIT

// www.jakerpomperada.blogspot.com / www.jakerpomperada.com

// jakerpomperada@gmail.com

// Bacolod City, Negros Occidental Philippines

#include <iostream>

using namespace std;

int main()

{

    int a=0,b=0,sum=0,difference=0;

    int option=0,add=0,subtract=0;

    int total=0;

    cout <<"\n";

    cout <<"\tAddition and Subtraction of Another Number in C++";

    cout <<"\n\n";

    cout <<"\tGive First  Value : ";

    cin >> a;

    cout <<"\tGive Second Value : ";

    cin >> b;

    sum = (a+b);

    difference = (a-b);

    cout <<"\n\n";

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

         " is " << sum <<"."<<"\n";

    cout <<"\n\n";

    cout << "\tOption  [1] - Add  [2] Subtract : ";

    cin >> option;

    cout <<"\n\n";

    if (option == 1) {

        cout << "\tGive a Number To Add     : ";

        cin >>add;

        total = add+ sum;

    }

    else if (option == 2) {

        cout << "\tGive a Number To Subtract : ";

        cin >>subtract;

        total = sum - subtract;

    }

    cout <<"\n\n";

    cout << "\tThe total result is " << total <<".";

    cout <<"\n\n";

    cout <<"\tEnd of Program";

    cout <<"\n";

}