find SUM of digits of a number using recursion using c language | CTechnotips

Sum of digits in c using recursion

#include<stdio.h>

int main(){

  int num,x;

  clrscr();

  printf("\nEnter a number: ");

  scanf("%d",&num);

  x=findsum(num);

  printf("Sum of the digits of %d is: %d",num,x);

  return 0;

}

int r,s;

int findsum(int n){

if(n){

         r=n%10;

         s=s+r;

         findsum(n/10);

     }

     else

       return s;

}