Birleştirme

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

class Book {
private:
    std::string title;
    std::string author;
public:
    Book(std::string t, std::string a) : title(t), author(a) {}
    std::string getTitle() const { return title; }
    std::string getAuthor() const { return author; }
};

class Library {
private:
    std::vector<Book> books;
    std::vector<bool> borrowed;
public:
    void addBook(const Book& b) { books.push_back(b); borrowed.push_back(false); }
    size_t count() const { return books.size(); }
    Book getBook(int idx) const { return books[idx]; }
    bool checkout(int idx) {
        if (idx < 0 || idx >= (int)books.size()) return false;
        if (borrowed[idx]) return false;
        borrowed[idx] = true;
        return true;
    }
    bool searchByTitle(const std::string& t) const {
        auto it = std::find_if(books.begin(), books.end(),
            [&t](const Book& b) { return b.getTitle() == t; });
        return it != books.end();
    }
};

int main() {
    Library lib;
    lib.addBook(Book("Tutunamayanlar", "Oğuz Atay"));
    lib.addBook(Book("İnce Memed", "Yaşar Kemal"));
    for (size_t i = 0; i < lib.count(); ++i) {
        std::cout << i << ": " << lib.getBook(i).getTitle() << "\n";
    }
    if (lib.checkout(0)) {
        std::cout << "ödünç verildi";
    }
    return 0;
}