Write a program to swap value of two variables without using third variable.
Source Code
#include<iostream>
using namespace std;
int main()
{
int a,b;
cout<<"\nEnter two numbers : ";
cin>>a>>b;
a=a+b;
b=a-b;
a=a-b;
cout<<"\nAfter swapping numbers are : ";
cout<<a<<" "<<b;
return 0;
}
Output
Enter two numbers : 78 12
After swapping numbers are : 12 78