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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4.  
  5. using namespace std;
  6.  
  7. class Lib
  8. {
  9. protected:
  10.     string booth;
  11.     char hall;
  12.  
  13. public:
  14.     Lib(char hall, string booth)
  15.     {
  16.         this->booth = booth;
  17.         this->hall = hall;
  18.     }
  19. };
  20.  
  21. class Book : public Lib
  22. {
  23.     string title;
  24.     string author;
  25.     int pages;
  26.     int price;
  27.  
  28. public:
  29.     Book(string title, string author, int pages, int price, char hall, string booth) : Lib(hall, booth)
  30.     {
  31.         this->title = title;
  32.         this->author = author;
  33.         this->pages = pages;
  34.         this->price = price;
  35.     }
  36.  
  37.     string getTitle()
  38.     {
  39.         return title;
  40.     }
  41.     int getPrice()
  42.     {
  43.         return price;
  44.     }
  45.     int getPages()
  46.     {
  47.         return pages;
  48.     }
  49.     char getHall()
  50.     {
  51.         return hall;
  52.     }
  53.     string getBooth()
  54.     {
  55.         return booth;
  56.     }
  57.     string getAuthor()
  58.     {
  59.         return author;
  60.     }
  61. };
  62.  
  63. class User
  64. {
  65.     string first_name;
  66.     string last_name;
  67.     string email;
  68.     string phone_number;
  69.  
  70. public:
  71.     User(string first_name, string last_name, string email, string phone_number)
  72.     {
  73.         this->first_name = first_name;
  74.         this->last_name = last_name;
  75.         this->email = email;
  76.         this->phone_number = phone_number;
  77.     }
  78.  
  79.     string getFirstName()
  80.     {
  81.         return first_name;
  82.     }
  83.     string getLastName()
  84.     {
  85.         return last_name;
  86.     }
  87.     string getEmail()
  88.     {
  89.         return email;
  90.     }
  91.     string getPhoneNumber()
  92.     {
  93.         return phone_number;
  94.     }
  95. };
  96.  
  97. int main()
  98. {
  99.     vector<User *> users;
  100.     vector<Book *> books;
  101.  
  102.     cout << "\n==================================" << endl;
  103.     cout << "Welcome to \"The LighHouse Library\"" << endl;
  104.     cout << "==================================\n"
  105.          << endl;
  106.  
  107.     int choice;
  108.  
  109.     while (true)
  110.     {
  111.         cout << "   ***Main menu***\n";
  112.         cout << "1.Add new user.\n2.Add new book.\n3.View users.\n4.View available books.\n5.Buy a book.\n0.Exit!" << endl;
  113.         cout << "Enter your choice: ";
  114.         cin >> choice;
  115.         cout << endl;
  116.  
  117.         if (choice == 1)
  118.         {
  119.             string first, last, email, number;
  120.             cout << "\nEnter your (fisrt name): ";
  121.             cin >> first;
  122.             cout << "Enter your (last name): ";
  123.             cin >> last;
  124.             cout << "Enter your (email): ";
  125.             cin.ignore();
  126.             getline(cin, email);
  127.             cout << "Enter your (phone number): ";
  128.             cin >> number;
  129.  
  130.             users.push_back(new User(first, last, email, number));
  131.             cout << "Welcome, " << first << " " << last << "!\n" << endl;
  132.             cout << "============================================================================" << endl;
  133.         }
  134.  
  135.         else if (choice == 2)
  136.         {
  137.             string title, booth, author;
  138.             int price, pages;
  139.             char hall;
  140.             cout << "\nEnter the book's (title): ";
  141.             getline(cin, title);
  142.             cout << "This book was (wrote by): ";
  143.             getline(cin, author);
  144.             cout << "How many (pages) does \"" << title << "\" has? ";
  145.             cin >> pages;
  146.             cout << "*in dollars* How much does it (costs): ";
  147.             cin >> price;
  148.             cout << "What (hall) and (booth) does \"" << title << "\" belongs? ";
  149.             cin >> hall >> booth;
  150.  
  151.             books.push_back(new Book(title, author, pages, price, hall, booth));
  152.             cout << "Book added successfully.\n";
  153.             cout << "============================================================================" << endl;
  154.         }
  155.  
  156.         else if (choice == 3)
  157.         {
  158.             if (users.empty())
  159.                 cout << "No users yet." << endl;
  160.             else
  161.             {
  162.                 sort(users.begin(), users.end());
  163.                 for (int i = 0; i < users.size(); ++i)
  164.                 {
  165.                     cout << (i + 1) << "." << users[i]->getFirstName()
  166.                          << " " << users[i]->getLastName()
  167.                          << " | " << users[i]->getEmail()
  168.                          << " | " << users[i]->getPhoneNumber() << endl;
  169.                 }
  170.             }
  171.             cout << "============================================================================" << endl;
  172.         }
  173.  
  174.         else if (choice == 4)
  175.         {
  176.             if (books.empty())
  177.                 cout << "No books yet." << endl;
  178.             else
  179.             {
  180.                 sort(books.begin(), books.end());
  181.                 for (int i = 0; i < books.size(); ++i)
  182.                 {
  183.                     cout << (i + 1) << "." << books[i]->getTitle()
  184.                          << " was wrote by: \"" << books[i]->getAuthor()
  185.                          << "\" | " << books[i]->getPages() << "pages ,"
  186.                          << books[i]->getPrice() << "$ | Hall:"
  187.                          << books[i]->getHall() << " ,Booth: "
  188.                          << books[i]->getBooth() << endl;
  189.                 }
  190.             }
  191.             cout << "============================================================================" << endl;
  192.         }
  193.  
  194.         else if (choice == 5)
  195.         {
  196.             int i = 1, book_number;
  197.             Book *selected = books[book_number - 1];
  198.             char answer;
  199.             for (Book *b : books)
  200.             {
  201.                 cout << i << "." << b->getTitle() << " ---> " << b->getPrice() << "$" << endl;
  202.                 i++;
  203.             }
  204.             cout << "*Number of the book* Which book you want to buy: ";
  205.             cin >> book_number;
  206.             cout << "you will pay " << selected->getPrice() << "$" << "for \"" << selected->getTitle() << "\".\n";
  207.             cout << "Enter \"Y\" to confirm: ";
  208.             cin >> answer;
  209.             if (answer == 'Y' || answer == 'y')
  210.                 cout << "You bought the book!";
  211.             else
  212.                 cout << "Miser.\n";
  213.             cout << "============================================================================" << endl;
  214.         }
  215.  
  216.         else if (choice == 0)
  217.             break;
  218.         else
  219.         {
  220.             cout << "Invalid choice!" << endl;
  221.             cout << "============================================================================" << endl;
  222.         }
  223.     }
  224. }
Success #stdin #stdout 0.01s 5304KB
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==================================
Welcome to "The LighHouse Library"
==================================

   ***Main menu***
1.Add new user.
2.Add new book.
3.View users.
4.View available books.
5.Buy a book.
0.Exit!
Enter your choice:
https://ideone.com/h4Zo6k
language:
C++ (gcc 8.3)
created:
8 hours ago
visibility:
public

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