//Swap two variables with call by reference
#include<stdio.h>
#include<math.h>
void main(){
    int a,b,c,*p,*q;
    p=&a;
    q=&b;
    printf("ENTER ANY TWO NUMBER =\n");
    scanf("%d",&a);
    scanf("%d",&b);
    printf("the value of a= %d\n",a);
    printf("The value of b=%d\n",b);
    //printf("%d\n",*p);    
    //printf("%d\n",*q);
    c=*p;
    *p=*q;
    *q=c;
    printf("THE  REVERSE VALUE a= %d \n b= %d = ",a,b);
   
      
    
}