數到3時打印Fizz，5時打印Buzz Fizz Buzz

問題：

Write a program that outputs the string representation of numbers from 1 to n.

But for multiples of three it should output 「Fizz」 instead of the number and for the multiples of five output 「Buzz」. For numbers which are multiples of both three and five output 「FizzBuzz」.

Example:

n = 15,
Return:
[
    "1",
    "2",
    "Fizz",
    "4",
    "Buzz",
    "Fizz",
    "7",
    "8",
    "Fizz",
    "Buzz",
    "11",
    "Fizz",
    "13",
    "14",
    "FizzBuzz"
]

解決：

① 直接解決，3的倍數輸出Fizz，5的倍數輸出Buzz。

class Solution { //6ms
    public List<String> fizzBuzz(int n) {
        List<String> res = new ArrayList<>();
        for (int i = 1;i <= n;i ++){
            String tmp = "";
            if (i % 3 != 0 && i % 5 != 0){
                tmp += i;
                res.add(tmp);
                tmp = "";
                continue;
            }
            if (i % 3 == 0){
                tmp += "Fizz";
            }
            if (i % 5 == 0){
                tmp += "Buzz";
            }
            res.add(tmp);
            tmp = "";
        }
        return res;
    }
}

② 

class Solution { //4ms
    public List<String> fizzBuzz(int n) {
        List<String> res = new ArrayList();
        if (n == 0) return res;
        int count = 1;
        while (count <= n) {
            if (count % 3 == 0 && count % 5 == 0) res.add("FizzBuzz");
            else if (count % 3 == 0) res.add("Fizz");
            else if (count % 5 == 0) res.add("Buzz");
            else res.add(String.valueOf(count));
            count ++;
        }
        return res;
    }
}