Leetcode 263. Ugly Number

文章作者：Tyan
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1. Description

Ugly Number

2. Solution

class Solution {
public:
    bool isUgly(int num) {
        if(num <= 0) {
            return false;
        }
        if(num == 1) {
            return true;
        }
        while(num != 1) {
            if(num % 2 == 0) {
                num = num / 2;
            }
            else if(num % 3 == 0) {
                num = num / 3;
            }
            else if(num % 5 == 0) {
                num = num / 5;
            }
            else {
                return false;
            }
        }
        return true;
    }
};

Reference

1. https://leetcode.com/problems/ugly-number/description/