Java

public class Solution {
    public boolean isPowerOfThree(int n) {
        if(n<=0) return false;
        while(n>1)
        {
            if(n%3==0)
            n=n/3;
            else
            return false;
        }
        return true;
    }
}

Leetcode笔记(python)
326. Power of Three Given an integer, write a function to...
326 && 342
326. Power of Three Given an integer, write a function to...
326. Power of Three
326. Power of Three 题目：https://leetcode.com/problems/powe...
326. Power of Three
Problem Given an integer, write a function to determine i...
326. Power of Three
题目分析题目链接，登录 LeetCode 后可用题目要求是让我们判断一个整数是不是 3 的次方数。首先将整数分为...
326. Power of Three
1.描述 Given an integer, write a function to determine if i...
326. Power of Three
Java
326. Power of Three
Given an integer, write a function to determine if it is ...
326. Power of Three
Given an integer, write a function to determine if it is ...
326. Power of Three
Given an integer, write a function to determine if it is ...