C Program to find the sum of digits of a number

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In this program, You will learn how to find the sum of digits of a number in c.

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2341 => 2 + 3 + 4 + 1 = 10

Example: How to find the sum of digits of a number in c.

#include<stdio.h>

int main() {

   int n, r, sum = 0;

   printf("Enter a number:");
   scanf("%d", &n);

   while (n > 0) {
       r = n % 10;
       sum = sum + r;
       n = n / 10;
   }
   printf("Sum of digits is:%d", sum);

   return 0;
}

Output:

Enter a number:123                                                                                                                     
Sum of digits is:6