OOP4.cpp - master - vedeneevt/OOP4

OOP4.cpp
95 строк2 KB
vedeneev.t
неготовый 4 пункт
19 ноя 2025, 18:18
19 ноя 2025, 18:1854fc5e0
#include <iostream>
#include <locale>
#include <vector>
#include <string>
#include <algorithm>

using namespace std;

/* 1 структура  */

struct men {
    string surname; /* фамилия */
    string name;
    string lastname; /* отчество  */
    int birthday;
    men() : birthday(0) {}
    men(string s, string n, string l, int b) : surname(s), name(n), lastname(l), birthday(b) {}
};

/* 2 абстрактный класс */
enum class Category {HudLit, SpravLit, YchLit, Other};

class Book {
protected:
    string title;
    int pages;
    vector<men> authors;
    string publisher;
    int year;
    Category category;

public:
    virtual ~Book() = default;
    void set_title(const string& t) { title = t; } 
    string get_title() const { return title; }   
  };

  /* 3 класс книг в каталоге */

class CatalBook : public Book {
    int id;
    int total;
public:
    CatalBook(int id = 0 , string t = "" , int p = 0 , int tt = 1 ){
        this -> id = id;
        this -> title = t;
        this -> pages = p;
        this -> total = tt;
    }    
    
    int get_id() const { return id; }
    int get_total() const { return total; }
};

class RegBook {
public:
    static vector<CatalBook> books;

    static void add(const CatalBook& b) {books.push_back(b); }

    static CatalBook* get(int id) {
        for (auto& b : books)
            if (b.get_id() == id )
            return &b;
        return nullptr;
    }

    static void list(){
        for (auto& b : books )
            cout << "id" << b.get_id() << " " << b.get_title() << " копий=" << b.get_total() << "\n";
    }

};

vector<CatalBook> RegBook::books;

/* 4 читатель */
class Reader : public men {
    int reader_id;
    bool active;
    vector <int> taken_books;
public:
    Reader ( int id = 0, string s = "" , string n = "" , string l = "" ) { 
        reader_id = id;
        surname = s; 
        name = n; 
        lastname = l;
        active = true;
    }
    int get_id() const { return reader_id; }
    bool is_active() const { return active; }


    
};