第九周作业：Fizz Buzz

题面：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"]

题解：可以类似先建立一个堆栈，对15的倍数，3的倍数，5的倍数，依次讨论，最后则利用一个将int转为string的函数转换即可。

代码：
class Solution {public:    vector<string> fizzBuzz(int n) {        vector<string> result;        for(int i=1;i<=n;i++){            if(i%15==0)                 result.push_back("FizzBuzz");            else if(i%3==0)                result.push_back("Fizz");            else if(i%5==0)                result.push_back("Buzz");            else                result.push_back(to_string(i));        }        return result;    }};