#include<vector>
#include<iostream>
#include<string>

class SomeObject {

private:
    std::vector<std::string> squares;

public:
    SomeObject() {}

    void fill() {
        squares.push_back(std::string("one"));
        squares.push_back(std::string("two"));
    }

    void print() const {
        for (std::string s : squares) {
            std::cout << s << std::endl;
        }
    }
};

int main() {
    SomeObject o = SomeObject();
    o.fill();
    o.print();
}