Swap Two Numbers using Pointers

/*
Write a program in C for swap two numbers using pointers
*/
 
#include<stdio.h>

main()
{
int x, y, *a, *b, temp;

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);

return 0;
}