Digit count of an integer

Count how many digits an integer has without converting to a string.

integers loops arithmetic

Write a function `digit_count(n)` that takes an integer `n` and returns the number of digits in its decimal representation. For negative numbers, the minus sign is not counted. The number 0 has exactly one digit.

Constraints

n is an integer between -(10^9) and 10^9 inclusive.

Example

>>> digit_count(12345)
5
>>> digit_count(-7)
1
>>> digit_count(0)
1
>>> digit_count(10)
2

5 points ~5 min

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Hints

Work with the absolute value of n.

Use a loop that repeatedly divides by 10 and counts iterations.

Remember that 0 has one digit, so handle that case first.

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