Иерархические именованные списки - C++ - Ответ 13760959

class Section
{
    private:
    std::string _name;
    std::vector<Book> _books;
    std::vector<Section> _sections;
 
    public:
    Section(std::string name, std::vector<Book> books = std::vector<Book>(0), std::vector<Section> sections = std::vector<Section>(0))
    {
        if (name.empty()) throw "The name cannot be empty";
        else {
            _name = name;
            _books = books;
            _sections = sections;
        }
    }
    std::string get_name() { return _name; }
    std::vector<Book> get_books() { return _books; }
    std::vector<Section> get_sections() { return _sections; }
    void add_book(std::string name, unsigned int total_pages) { _books.push_back(Book(name, total_pages)); }
    void add_book(Book book) { _books.push_back(book); }
    //void add_section(std::string name) { _sections.push_back(Section(name)); }
};