test.cpp

#include <iostream>
#include <string>
#include <vector>

using namespace std;

class Author {

private:
    string name, id, email;

public:

    Author(string name, string id, string email) {
        Author::name = name;
        Author::id = id;
        Author::email = email;
    }

    string getName() {
        return name;
    }

    string getId() {
        return id;
    }

    string getEmail() {
        return email;
    }

    void setName(string name) {
        Author::name = name;
    }

    void setId(string id) {
        Author::id = id;
    }

    void setEmail(const string &email) {
        Author::email = email;
    }
};


class Book {
private:
    string name;
    double price;
    int sold;
    Author author;

public:
    Book(string name, double price, int sold, const Author &author) : name(name), price(price), sold(sold),
                                                                      author(author) {}

    void setName(string name) {
        Book::name = name;
    }

    void setPrice(double price) {
        Book::price = price;
    }

    void setSold(int sold) {
        Book::sold = sold;
    }

    void setAuthor(Author author) {
        Book::author = author;
    }

    string getName() {
        return name;
    }

    double getPrice() const {
        return price;
    }

    int getSold() const {
        return sold;
    }

    double getTotalSoldPrice() {
        return Book::sold * Book::price;
    }

    Author getAuthor() {
        return author;
    }
};

class Store {

private:
    vector<Book> books;
    Book *bookHasMaximumSold;

public:

    Store() {
        bookHasMaximumSold = NULL;
    }

    vector<Book> getBooks() {
        return books;
    }

    /**
     * Add new book
     * @param book
     */
    void addBook(Book book) {
        if (this->bookHasMaximumSold == NULL) {
            this->bookHasMaximumSold = &book;
        } else {
            if (this->bookHasMaximumSold->getSold() < book.getSold()) {
                this->bookHasMaximumSold = &book;
            }
        }

        Store::books.push_back(book);
    }

    /**
     * Get book has maximum sold
     * @return
     */
    Book *getMaximum() {
        return bookHasMaximumSold;
    }

    void print() {

        cout << "Your Store:" << endl;
        for (int i = 0; i < books.size(); ++i) {
            cout << "Book name: " << books[i].getName() << endl;
            cout << "Author: " << books[i].getAuthor().getName() << endl;
            cout << "price: " << books[i].getPrice() << endl;
            cout << "Num of sold: " << books[i].getSold() << endl;
            cout << "Total sold ($): " << books[i].getTotalSoldPrice() << endl;

            cout << "---------------------------------------------------------------------" << endl;
        }

        cout << "Best book:" << endl;
        cout << "Name: " << Store::getMaximum()->getName() << endl;
        cout << "Sold: " << Store::getMaximum()->getSold() << endl;
        cout << "Total sold ($): " << Store::getMaximum()->getTotalSoldPrice() << endl;
        cout << "---------------------------------------------------------------------" << endl;

    }

};

int main() {

    // khoi tao author 1
    Author a1("Join smith", "id-001", "[email protected]");
    // khoi tao author 2
    Author a2("Tom Cruise", "id-002", "[email protected]");

    // khoi tao book 1
    Book b1("C++ nang cao", 100, 500, a1);
    // khoi tao book 2
    Book b2("Java nang cao", 200, 700, a2);

    Store s; // store

    // them book 1 vao store
    s.addBook(b1);
    // them book 2 vao store
    s.addBook(b2);

    // thong ke
    s.print();

    return 0;
}