Program in C to reverse any number using while loop

Write a program in C to reverse any number using while loop

#include <stdio.h>

#include <conio.h>

#include <string.h>

void main ()

{

          int no,r,res;

          clrscr ();

          printf ("Enter any value: ");

          scanf ("%d",&no);

          r=res=0;

          while (no>0)

          {

                   r=no%10;

                   no=no/10;

                   res=(res*10)+r;

          }

          printf ("\nReverse is %d",res);

          getch ();

}