Program In C To Find Sum Of Digits Of A Number Using Recursion

#include<stdio.h>

#include<conio.h>

int fun(int num)

{ int rem,sum;

if(num==0)

return 0;

else

{ rem=num%10;

sum=rem+fun(num/=10); }

return sum;

}

void main()

{ int n,sod;

clrscr();

printf("Enter Number: ");

scanf("%d",&n);

sod=fun(n);

printf("Sum Of Digits Is: %d",sod);

getch();

}