2023.04.26 Today's Challenge

fabichoi 2023. 4. 26. 23:45

https://leetcode.com/problems/add-digits/

Add Digits - LeetCode

Can you solve this real interview question? Add Digits - Given an integer num, repeatedly add all its digits until the result has only one digit, and return it. Example 1: Input: num = 38 Output: 2 Explanation: The process is 38 --> 3 + 8 --> 11 11 -->

leetcode.com

class Solution:
    def addDigits(self, num: int) -> int:
        return 1 + (num - 1) % 9 if num else 0