C++ Program for Swapping of Numbers using Pointers

Program code:

#include<iostream>

using namespace std;

int main()

{

int x  , y , z , *a , *b , *c  ;

cout<<"Enter value of x : ";

cin>>x;

cout<<"Enter value of y : ";

cin>>y;

cout<<"Before swapping x :  "<<x;

cout<<"\nBefore swapping y :  "<<y;

a = &x;

    b = &y;

c = &z;

*c = *a;

*a = *b;

*b = *c;

cout<<"\nAfter swapping x :  "<<x;

cout<<"\nAfter swapping y :  "<<y;

return 0;

}

Output:

.exe file