Function sum_of_digits

sum_of_digits_of_a_number.py:49–74

Compute the sum of the digits of an integer. Args: n: Non-negative integer. If the integer is negative, it is converted to positive before computing the sum. Returns: Sum of digits of the number. Examples: >>> sum_of_digits(123) 6 >

(n: int)

def sum_of_digits(n: int) -> int:
    """
    Compute the sum of the digits of an integer.

    Args:
        n: Non-negative integer.
        If the integer is negative, it is converted to positive before computing the sum.

    Returns:
        Sum of digits of the number.

    Examples:
        >>> sum_of_digits(123)
        6
        >>> sum_of_digits(405)
        9
        >>> sum_of_digits(-789)
        24
    """
    n = abs(n)  # FIX: handle negative numbers
    total = 0
    while n > 0:
        # Add last digit and remove it from n
        total += n % 10
        n //= 10
    return total


def main() -> None: