#include <iostream>


using namespace std;

struct date {
    int day_;
    int month_;
    int year_;
};

class person {

public:
    person(const int id, const char* last_name, const char* first_name, const char* middle_name, const date birthday) : id_(id), last_name_(new char[strlen(last_name) + 1]), first_name_(new char[strlen(first_name) + 1]), middle_name_(new char[strlen(middle_name) + 1]), birthday_(birthday) {
        strcpy(last_name_, last_name);
        strcpy(first_name_, first_name);
        strcpy(middle_name_, middle_name);
        number_person_++;
    }

    person() : person(111111, "Ivanov", "Ivan", "Ivanovich", { 1,1,1993 }) {}

    person(const person& other) : person(other.id_, other.last_name_, other.first_name_, other.middle_name_, other.birthday_) {}

    void print() {
        cout << last_name_ << " " << first_name_ << " " << middle_name_ << ", " << birthday_.day_ << '.' << birthday_.month_ << '.' << birthday_.year_ << ", id - " << id_ << endl;
    }

    static int get_number_person() {
        return number_person_;
    }

    ~person() {
        delete[] last_name_;
        delete[] first_name_;
        delete[] middle_name_;
        number_person_--;
    }

    void set_id(const int id) {
        id_ = id;
    }


    void set_last_name(const char* last_name) {
        delete[] last_name_;
        last_name_ = new char[strlen(last_name) + 1];
        strcpy(last_name_, last_name);
    }

    void set_first_name(const char* first_name) {
        delete[] first_name_;
        first_name_ = new char[strlen(first_name) + 1];
        strcpy(first_name_, first_name);
    }

    void set_middle_name(const char* middle_name) {
        delete[] middle_name_;
        middle_name_ = new char[strlen(middle_name) + 1];
        strcpy(middle_name_, middle_name);
    }

    void set_birthday(const int day, const int month, const int year) {
        birthday_.day_ = day;
        birthday_.month_ = month;
        birthday_.year_ = year;
    }

private:
    int id_; // идентификационный номер
    char* last_name_; // фамилия
    char* first_name_; // имя
    char* middle_name_; // отчество
    date birthday_; // дата рождения
    static int number_person_;
};

int person::number_person_ = 0;

int main() {
    person p1(222222, "Petrov", "Petr", "Petrovich", {23,8,1997});

    cout << person::get_number_person() << endl;

    person p2;

    person p3(p1);

    cout << person::get_number_person() << endl;

    p1.print();
    p2.print();

    p3.set_id(333333);
    p3.set_last_name("Sidorov");
    p3.set_first_name("Sidor");
    p3.set_middle_name("Sidorovich");
    p3.set_birthday(11, 1, 1995);

    p3.print();

}