иерарх_наследование

#include <iostream>

using namespace std;

class Glider
{
    public:
        string model;       // модель
        string constructor; // конструктор
        string year;        // год разработки
        Glider(string m, string c, string y)
        {
            model = m;
            constructor = c;
            year = y;
        }
        void show()
        {
            cout << "<<----GLIDER---->>" << endl;
            cout << "Model: " << model << endl;
            cout << "Constructor: " << constructor << endl;
            cout << "Year of development: " << year << endl;
        }
};

class Airplane : public Glider
{
    public:
        string speed;   // скорость
        string range;   // дальность полета
        Airplane(string m, string c, string y, string s, string r)
                             : Glider(m, c, y), speed(s), range(r)
        {
            model = m;
            constructor = c;
            year = y;
            speed = s;
            range = r;
        }
        void show()
        {
            cout << "<<----AIRPLANE---->>" << endl;
            cout << "Model: " << model << endl;
            cout << "Constructor: " << constructor << endl;
            cout << "Year of development: " << year << endl;
            cout << "Speed: " << speed << endl;
            cout << "Flight range: " << range << endl;
        }
};

class Missile : public Airplane
{
    public:
        string purpose; // назначение
        string fuel;    // тип топлива
        Missile(string m, string c, string y, string s, string r, string p, string f)
                                       : Airplane(m, c, y, s, r), purpose(p), fuel(f)
        {
            model = m;
            constructor = c;
            year = y;
            speed = s;
            range = r;
            purpose = p;
            fuel = f;
        }
        void show()
        {
            cout << "<<----MISSILE---->>" << endl;
            cout << "Model: " << model << endl;
            cout << "Constructor: " << constructor << endl;
            cout << "Year of development: " << year << endl;
            cout << "Speed: " << speed << endl;
            cout << "Flight range: " << range << endl;
            cout << "Purpose: " << purpose << endl;
            cout << "Type of fuel: " << fuel << endl;
        }
};

int main()
{
    Glider G1("Perlan 2", "Airbus", "2018");
    Airplane A1("Foxhound", "A. B. Anosovich", "1970s", "920 km/h", "2240 km");
    Missile M1("Phase III Proton Breeze M", "GKNPTS named after M.V. Khrunichev", "2012", "1500 m/s", "65000 km", "Launch vehicle", "Amyl, Heptyl");
    G1.show();
    A1.show();
    M1.show();
    return 0;
}