LintCode (9)Fizz Buzz

下面是AC代码，C++风格：

 1 class Solution {
 2 public:
 3     vector<string> fizzBuzz(int N) {
 4         vector<string> Answer;
 5         for(int i = 1;i <= N;i++) {
 6             if(i % 15 == 0) {
 7                 Answer.push_back("fizz buzz");
 8             } else if(i % 3 == 0) {
 9                 Answer.push_back("fizz");
10             } else if(i % 5 == 0) {
11                 Answer.push_back("buzz");
12             } else{
13                 Answer.push_back(to_string(i));
14             }
15         }
16         return Answer;
17     }
18 };

此处很奇怪，为何将成员函数名fizzBuzz的首字母改成大写，编译返回不通过？

编译警告

Main.cpp: In function ‘int main()’:
Main.cpp:26:39: error: ‘class Solution’ has no member named ‘fizzBuzz’
vector results = solution.fizzBuzz(n);
^

EXITCODE=1

What Greek，do put shit!