Today's Challenge

https://leetcode.com/problems/power-of-three/submissions/

Power of Three - LeetCode

오늘도 easy 난이도 문제.
생각보다 따질 조건들이 몇개 있음.

class Solution:
    def isPowerOfThree(self, n: int) -> bool:
        if n == 1:
            return True
        if n < 3:
            return False
        while n > 1:
            if n % 3 != 0:
                return False
            n //= 3
        return True