Member

#include <iostream>
using namespace std;

class Member {
protected :
    int id;
    char* name;
    int age
    int guardID = -1;
public :
    Member() {
        name = new char[100];
        cin >> id >> name >> age;

        if (age < 19) cin >> guardID;
    }
    
};

class Adult : public Member{
public :
    friend ostream& operator<< (ostream& os, const Adult adt);
};

ostream& operator<< (ostream& os, const Adult adt) {
    os << adt->id << adt->name << adt->age << endl;
    return os;
}

class Underage : public Member {
private :
    Member* guardian;
public :
    Underage
    friend ostream& operator(ostream& os, const Underage& uda)
}

ostream& operator<< (ostream& os, const Underage& uda) {
    os << uda.id << uda.name << uda.age << uda.guardian->id << uda.guardian->name
    << uda.guardian->age << endl;
}
template <typedef T>
class Array {
private :
    T* arr[100];
    int arrlen;
public : 
    void InsertArray() {
        arr[arrlen] = new Member();
        arrlen++;
    }
    void ShowAllArray() {
        for (int i = 0; i < len; i++)
            cout << arr[i];
    }
    ~Array () {
        delete []arr;
    }
};

class MemberManager{
private :
    Array<Member> mList;
public :
    void InsertMember() {
        mList.InsertArray();
    }
    void ShowAllMember() {
        mList.ShowAllArray();
    }
};