Swapping of 2 Numbers {Pointers}

#include<stdio.h>
#include<conio.h>
void main()
{
   int x, y, *a, *b, temp;
   clrscr();
   printf("Enter the value of x and y ");
   scanf("%d%d",&x,&y);
   printf("Before Swapping\nx = %d\ny = %d\n", x, y);
   a = &x;
   b = &y;
   temp = *b;
   *b = *a;
   *a = temp;
   printf("After Swapping\nx = %d\ny = %d\n", x, y);
   getch();
}