C Programming language

/** Program to Reverse the digits of a given number **/

#include<stdio.h>
#include<conio.h>
void main()
{
	long int num, a, b;
	long int ctr=0,s=0;
	clrscr();
	printf ("Enter the digit ");
	scanf ("%ld",&num);
	while (num!=0)
	{
		a=num%10;
		num=num/10;
		s=s*10;
		s=s + a;
		ctr++;
	}
	printf ("The reverse No. is=%ld" ,s);
	printf("\n count=%ld", ctr);
	getch();
}