C Program to find the reverse and sum of a number

# include "stdio.h"
void sum_rev (int);
void main ()
{ 
     int num;
     clrscr ();
     printf ("Enter a number \n");
     scanf ("%d", & num);
     sum_rev (num);
     getch ();
}

void sum_rev (int n)
{
     int a, s = 0, rev = 0;
     while (n > 0)
     {
          a = n % 10;
          rev = rev * 10 + a;
          s = s + a;
          n = n / 10;
      }
      printf ("Reverse is %d . Sum is %d", rev, s);
}