#include<string>
#include<iostream>
using namespace std;
class Person {
    string name;
public:
    Person(string Name) {name = Name;}
    string showName() { return name; };
    virtual void print() { cout << name << endl; }//"name"
};
class Member : public Person{
    string type;
public:
    Member(string Name, string Type) : Person(Name) { type = Type; }
        void print() { cout << showName() << "," << type << endl;}
};
class Industry : public Person {
    string position, company;
public:
    Industry(string Name, string Position, string Company) : Person(Name) { position = Position; company = Company; }
    void print() { cout << showName() << "," << position << "," << company << endl; }
};
class Seminar {
    string room;
    string time;
    int MAX_NO_OF_PERSON;
    Person *personList[30];
    int noOfPerson;
public:
    Seminar() {
        MAX_NO_OF_PERSON = 30;
        noOfPerson = 0;
    }
    void setRoom(string Room) { room = Room; }
    void setTime(string Time) { time = Time; }
    Person** PersonList() { return personList; }
    int NumberOfPerson() { return noOfPerson; }
    void Register(Person *p) {
        if (noOfPerson < MAX_NO_OF_PERSON) {
            personList[noOfPerson] = p;
            noOfPerson++;
        }
    }
    void print() { cout << "Room:" << room << " Time:" << time << endl; } //"Room:room Time:time"
};
void main()
{
    string str;
    Seminar *s = new Seminar;
    cout << "Seminar room? "; cin >> str;
    s->setRoom(str);
    cout << "Seminar time? "; cin >> str;
    s->setTime(str);
    for (;;) {
        cout << " Participant? ([m]ember/[s]tudent/[i]ndustry/[n]one)"; cin >> str;
        if (str == "m") {
            string name, type;
            cout << "Name ?";
            cin >> name;
            cout << "Member ?";
            cin >> type;
            Member* member = new Member(name, type);
            s->Register(member);
        }
        if (str == "i") {
            string name, position , company;
            cout << "Name ?";
            cin >> name;
            cout << "Position ?";
            cin >> position;
            cout << "Company ?";
            cin >> company;
            Industry* industry = new Industry(name, position , company);
            s->Register(industry);
        }
        if (str == "n") break;
    }
    //display
    cout << "\nSummary details:\n";
    cout << " Seminar:\n";
    cout << " "; s->print();
    cout << " Participant:\n";
    for (int i = 0; i<s->NumberOfPerson(); i++) {
        cout << " ";
        s->PersonList()[i]->print();
    }
    cin.ignore();
    getchar();
    return;
}