c++ program to swap two numbers using pointers

Here a and b are two no. and we are swapping them.It means we are interchanging the values of  a and b.

//

#include<iostream.h>

#include<conio.h>

void main()

{clrscr();

int *a,*b,*c,p,q;

cout<<"enter 2 nos.=";

cin>>p>>q;

a=&p;

b=&q;

*c=*a;

*a=*b;

*b=*c;

cout<<"swapping nos.="<<*a<<'\n'<<*c<<'\n';

getch();

}

OUTPUT

enter 2 nos.=7

5

swapping nos.=5

7