ООП лаб 8(2)

#include <iostream>
#include <string>

using namespace std;

class trail { //випробування
    protected:
        int max_rating;
    public:
        void input_trail() {
            cout << "Enter max rating: ";
            cin >> max_rating;
        }
        void print_trail() {
            cout << "Max rating: " << max_rating << endl;
        }
};

class test : public trail {
    protected:
        int number_question;
        string* question;
    public:
        void input_test() {
            input_trail();
            cout << "Enter number of questions: ";
            cin >> number_question;
            cin.ignore(32767, '\n');
            question = new string[number_question];
            for (int i = 0; i < number_question; i++)
                getline(cin, question[i]);
        }
        void print_test() {
            print_trail();
            cout << "Questions: " << endl;
            for (int i = 0; i < number_question; i++)
                cout << i + 1 << ": " << question[i] << endl;
        }
};

class exem : public test {
    protected:
        int time;
    public:
        void input_exem() {
            input_test();
            cout << "Enter time(minute): ";
            cin >> time;
        }
        void print_exem() {
            print_test();
            cout << "Time(minute): " << time << endl;
        }
};

class final_exem : public exem {
    bool is_final;
    final_exem() {
        is_final = 1;
    }
};

int main() {
    exem e;
    e.input_exem();
    cout << endl;
    e.print_exem();
    return 0;
}