Sum of digits

Number decomposition basics.

arithmetic loops

Implement `digit_sum(n: int) -> int`.

Return the sum of the decimal digits of `n`.

Constraints

0 ≤ n ≤ 10^15

Example

>>> digit_sum(1234)
10

8 points ~10 min

Recent Submissions

No submissions yet — hit Run Tests to try!

Hints

Convert to string, iterate chars, sum int(ch).

Test Results

Press Ctrl+Enter or click Run Tests to execute your code.