#include<iostream>
#include<iomanip>
#include<fstream>
#include<string>
#include<Windows.h>
using namespace std;

struct book
{
  char name[100]{ 0 };
  unsigned year;
  unsigned circulation;
};

int count_if(book* b, int sz, int from, int to)
{
  int cn = 0;
  for(int i = 0; i < sz; ++i)
  {
    if(b[i].year >= from && b[i].year <= to)
    {
      ++cn;
    }
  }
  return cn;
}

book* get_books_list(book* arr, int n, int from, int to, int& out_sz)
{
  out_sz = count_if(arr, n, from, to);
  if(out_sz == 0)
  {
    return nullptr;
  }

  book* array = new book[out_sz];
  int idx = 0;

  for(int i = 0; i < n; ++i)
  {
    if(arr[i].year >= from && arr[i].year <= to)
    {
      strcpy_s(array[idx].name, arr[i].name);
      array[idx].year = arr[i].year;
      array[idx].circulation = arr[i].circulation;
      ++idx;
    }
  }
  return array;
}

int main()
{
  SetConsoleCP(1251);
  SetConsoleOutputCP(1251);

  string kng = "TextFile1.txt";
  int N;
  book *arr;
  int otkr;
  cout << "ВЫБЕРИТЕ СПОСОБ ВВОДА. 0 - С КЛАВИАТУРЫ, 1 - ИЗ ФАЙЛА  \n";
  cin >> otkr;
  if(otkr == 0)
  {
    cout << "введите размер массива \n";
    cin >> N;
    arr = new book[N];
    for(int i = 0; i < N; ++i)
    {
      cout << "Введите название книги\n";
      cin >> arr[i].name;
      cout << "Введите тираж \n";
      cin >> arr[i].circulation;
      cout << "Введите год издания \n";
      cin >> arr[i].year;
    }

    for(int i = 0; i < N; ++i)
    {
      cout << arr[i].name << "  " << arr[i].circulation << "  " << arr[i].year << endl;
    }

  }
  else
  {
    fstream knigi;
    knigi.open("TextFile1.txt");
    knigi >> N;
    arr = new book[N];
    for(int i = 0; i < N; i++)
    {
      knigi >> arr[i].name >> arr[i].circulation >> arr[i].year;
    }
  }

  int sz = 0;

  book* books = get_books_list(arr, N, 2000, 2010, sz);

  delete[] arr;

  if(books)
  {
    cout << "НАЗВАНИЕ И ТИРАЖ КНИГ С ИЗДАННЫХ С 2000-2010 ГГ:\n";
    for(int i = 0; i < sz; ++i)
    {
      cout << books[i].name << "  " << books[i].circulation << "\n";
    }
    delete[] books;
  }
  else
  {
    cout << "ТАКИХ НЕТ.";
  }
  system("pause");
}