#include <iostream>
#include <string>

using namespace std;

class Book
{
private:
    string title;
    string authorName;
    string authorFamily;
    string date;
public:
    Book();
    Book(string _title,
         string _authorName,
         string _authorFamily,
         string _date);
    friend ostream& operator<< (ostream &obj, const Book &obj2);
    string getTitle();
    string getAuthorName();
    string getAuthorFamily();
    string getDate();
};

class Library:public Book
{
private:
    const int numberOfBooks;
    Book* books;
public:
    Library(int _number);
    void fillBooks();
    void find(string date);
};

Book::Book():
    title(),
    authorName(),
    authorFamily(),
    date()
{}
Book::Book(string _title,
           string _authorName,
           string _authorFamily,
           string _date):
           title(_title),
           authorName(_authorName),
           authorFamily(_authorFamily),
           date(_date)
{}
string Book::getTitle(){return title;}
string Book::getAuthorName(){return authorName;}
string Book::getAuthorFamily(){return authorFamily;}
string Book::getDate(){return date;}

ostream& operator<< (ostream &obj, Book &obj2)
{
    cout << "Title: ";
    obj << obj2.getTitle() <<"\n";
    cout << "Author Name: ";
    obj << obj2.getAuthorName()<<" "<<obj2.getAuthorFamily()<<"\n";
    cout << "Date:";
    obj << obj2.getDate()<<"\n";
    return obj;
}

Library::Library(int _number):
                 numberOfBooks(_number)
{
    books = new Book[numberOfBooks];
    fillBooks();
}

void Library::fillBooks()
{
    if(numberOfBooks!=0){
        string title;
        string authorName;
        string authorFamily;
        string date;
        for(int i = 0;i < numberOfBooks;i++)
        {
            cout << "Input Book Title: ";
            cin >> title;
            cout << "Input Author Name: ";
            cin >> authorName;
            cout << "Input Author Family: ";
            cin >> authorFamily;
            cout << "Input Date taken: ";
            cin >> date;
            books[i] = Book(&title[0], &authorName[0], &authorFamily[0], &date[0]);
        }
    }else
    {
        cout << "No books";
    }
}

void Library::find(string date)
{
    for(int i = 0;i < numberOfBooks;i++){
        if(date == books[i].getDate()){
            cout << books[i];
        }
    }
}