Program in C to find that number is palindrome or not (121=121)

Write a program in C to find that number is palindrome or not (121=121)

#include <stdio.h>

#include <conio.h>

#include <math.h>

void main ()

{

          int no,r,res,temp=0;

          clrscr ();

          printf ("Enter Number: ");

          scanf ("%d",&no);

          r=res=0;

          temp=no;

          while (no>0)

          {

                   r=no%10;

                   no=no/10;

                   res=(res*10)+r;

          }

          if (temp==res)

                   printf("Number is Palandrom");

          else

                   printf("Number is not Palandrom");

          getch ();

}