PROGRAM TO SWAP 2 VALUES USING POINTER

#include<stdio.h>

#include<conio.h>

void main()

            {

            int a,b,*p,*q,t;

            clrscr();

            printf("Enter the values of A and B: ");

            scanf("%d%d",&a,&b);

            printf("\nA=%d\nB=%d",a,b);

            p=&a;

            q=&b;

            t=*p;

            *p=*q;

            *q=t;

            printf("\n\nSwapped numbers \n");

            printf("\nA=%d\nB=%d",a,b);

            getch();

            }

OutPut

  ---------

Enter the values of A and B: 2 5

A=8

B=3

Swapped numbers

A=3

B=8