Q: If a five-digit number is input through the keyboard, write a program to calculate the sum of its digits. (Hint: Use the modulus operator ‘%’)

#include <stdio.h>
int main()
{
   
    int num, sum;
   
    printf("enter any number : ");
    scanf("%d",&num);
   
    while(num != 0)    /*condition used unti num becomes zero*/
    {
        /* modulo operator is used to find remainder*/
        sum += num%10;   /* sum is increase with new remainder after the no is divide by 10 */
        num  =  num/10;
    }

    printf("sum of digits of given no is %d",sum);

    return 0;
}

-----------------------------------------

output :

enter any number : 12345
sum of digits of given no is 15