c-program to calculate the sum of the digits of the numbers using recursion.| c-programming

Q.no program to calculate the sum of the digits of the number using recursion in c-programming. 

In this program, we will calculate the sum of the digits of the number by taking the input from the user in c-programming

recursion means function calling itself is called recursion .

#include<stdio.h>
#include<conio.h>
int sum(int n);
void main()
{
   int n;
   printf("enter the number\n");
   scanf("%d",&n);
   printf("the sum of the digits of the number is %d",sum(n));
   getch();
}
int sum(int n)
{
   if(n/10==0)
         return(n);
   else
         return(n%10+sum(n/10));
}

Output:-

               enter the number 343

                sum of the digits of the number is 10.

For more c-programming example:-

c-program to calculate the GCD of two number by recursion

.c-program to calculate the sum of the natural number by recursion