If a 5 digit number is entered by a user. Write a program to calculate sum of its digits

Question

without using loops and remainder theorem

Answer 1

Hint:

* Use std::to_string() to convert number to string

* Ignore if string length not equal to 5

* Subtract each character by 48 to get the digit to add to sum variable.

Answer 2

I think you should post it in coding challenges section