Poison

263. Ugly Number

发表于 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
class Solution {
    public boolean isUgly(int n) {
        if (n <= 0) {
            return false;
        }
        
        while (n % 5 == 0) {
            n /= 5;
        }
        while (n % 3 == 0) {
            n /= 3;
        }
        while (n % 2 == 0) {
            n /= 2;
        }

        return n == 1;
    }
}
Reference

263. Ugly Number