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"
]

沒什麼說的，唯一就是c++ int to string 使用

to_string(n)，

string to int：

std::string str = "123";
int n = atoi(str.c_str());

程式碼：

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