#include <vector>
    #include <string>
    #include <cstring>
    #include <iostream>
    
    using namespace std;
    
    int main()
    {
        string aS="hello world";
        std::vector<char> aC(aS.begin(), aS.end());
        aC.push_back(0);
        cout << &aC[0] << endl;
    }