Write C++ program to swap value of two variables without using third variable.

Write C++ program to swap value of two variables without using third variable.

Program Code:

#include<iostream>

using namespace std;

int main()

{

int number1, number2;

cout<<" Number1 : ";

cin>>number1;

cout<<endl;

cout<<" Number2 : ";

cin>>number2;

cout<<endl;

number1 = number1 + number2;

number2 = number1 - number2;

number1 = number1 - number2;

cout<<" After swapping : ";

cout<<endl;

cout<<" Number1 = " <<number1;

cout<<endl;

cout<<" Number2 = " <<number2;

return 0;

}

The program code is tested on www.jdoodle.com

Output:

Number1 : 5

 Number2 : 4

 After swapping : 

 Number1 = 4

 Number2 = 5

Thanks

Mukesh Rajput