C++ program to swap two values

A C++ program that inputs two numbers, swap two values and displays them.

#include <iostream>

using namespace std;

int main()

{

int a,b,temp;

cout<<"Enter first number : ";cin>>a;

cout<<"\n Enter second number : ";cin>>b;

cout<<"before swap a = "<<a<<" b = "<<b<<endl;

temp = a;

a = b;

b = temp;

cout<<"After swap a = "<<a<<" b = "<<b<<endl;

return 0;

}

Output:

Enter first number : 12

 Enter second number : 13

before swap a = 12 b = 13

After swap a = 13 b = 12