lr6

#include <iostream>
#include <string>

using namespace std;

class Republic{
    protected:
        string name;

    public:
        static Republic * begin;
        Republic * next;

        static void add(Republic *cur){
            cur->next = begin;
            begin = cur;
        }

        Republic(){
            add(this);
        }

    virtual void show(){
        cout << "Name: " << name << endl;
        cout << "----------------------------" << endl;
    }

    virtual void set_parameters(){
        string s;

        cout << "Name: ";
        cin >> s;

        name = s;
    }

    virtual void print() {
        Republic *l = begin;

        while (l) {
            l->show();
            l = l->next;
        }
    }
};

    Republic * Republic::begin;

    class Monarh: public Republic{
    protected:
        int peop;
        string lang;

    public:
        Monarh():Republic(){}

        void show() {
            cout << "Name: " << name << endl;
            cout << "People: " << peop << endl;
            cout << "Language: " << lang << endl;
            cout << "----------------------------" << endl;
        }

        void set_parameters() {
            int k;
            string s, a;

            cout << "Name: ";
            cin >> s;

            cout << "People: ";
            cin >> k;

            cout << "Language: ";
            cin>>a;

            name = s;
            peop = k;
            lang=a;
        }

};

    class Kingdom: public Republic{
    protected:
        int peop;

    public:
        Kingdom():Republic(){}

        void show(){
            cout << "Name: " << name << endl;
            cout << "People: " << peop << endl;
            cout << "----------------------------" << endl;
        }

        void set_parameters(){
            int n;
            string s;

            cout << "Name: ";
            cin >> s;

            cout << "People: ";
            cin >> n;


            name = s;
            peop = n;
        }
};

class State: public Republic{
    public:
        State():Republic(){}
};

int main(){
    Republic::begin = 0;
    Republic republic;
    Monarh monarch;
    Kingdom kingdom;
    State state;

    cout << "Republic" << endl;
    republic.set_parameters();

    cout << "Monarch" << endl;
    monarch.set_parameters();

    cout << "Kingdom" << endl;
    kingdom.set_parameters();

    cout << "State" << endl;
    state.set_parameters();

    cout << "============================" << endl;
    cout << "All REPUBLIC" << endl;
    cout << "============================" << endl;

    republic.print();
    return 0;
}