Write a function that receives an integer number and returns

Write a function that receives an integer number and returns the sum of the digits as an integer. For example, if the input is 123, the sum of digits would be 6 because 1 + 2 + 3. Do not make any assumption about the number of digits in your input. You are not allowed to use characters, strings or character of arrays.

Solution

#include <stdio.h>

int main()
{
   int n;
   printf(\"Please enter an integer:\");
   scanf(\"%d\",&n);
   int sum=0;
   int tmp=n;
   while(n>0)
   {
       sum = sum+n%10;
       n = n/10;
   }
   printf(\"The sum of all the digits in %d is %d\ \",tmp,sum);
   return 0;
}