补充find函数，其功能为在数组中查找某个id的User，输出其qq号码。（注意：部分代码已给出且不可删改）
#include
#include
using namespace std;
struct User
{
int id;
char email[16];
char gender[5];
int qq;
};
int find(User* message, int n, int id)
{

int m;
/************在这里补充代码************/

/**************************************/
return m;
}
int main()
{
int result;
User a[3] = {
{123,"a@xxx.net","boy",2018},
{124,"b@xxx.net","girl",2020},
{125,"c@xxx.net","boy",2019}
};
result=find(a, 3, 124);
cout<<result<<endl;

}