#include "stdafx.h"
#include "iostream"
#include "io.h"

struct Info {
	char Author[20];
	char Name[20];
	int Cost;
};

class Book {
	Info* mas;
	int N;
public:
	void ReadFL();
	void Output();
	void Sort();
};

void Book::ReadFL() {
	FILE *f;
	fopen_s(&f,"Book.dat", "rb");
	int d;
	d = _fileno(f);
	long L = filelength(d);
	N = L / sizeof(Info);
	mas = new Info;
	for (int i = 0; i < N; i++) {
		fread(mas + i, sizeof(Info), 1, f);
	}
	fclose(f);
}

void Book::Sort() {
	Info zap;
	int f;
	for (int i = 0; i < N - 1; i++)
	{
		for (int j = i + 1; j < N; j++)
		{
			mas[i].Cost < mas[j].Cost;
			if (f) {
				zap = mas[i];
				mas[i] = mas[j];
				mas[j] = zap;
			}
		}
	}
}

void Book::Output() {
	char* Aut;
	Aut = new char;
	std::cout << "Enter author name" << std::endl;
	std::cin >> Aut;
	printf("%-20s", "Author");
	printf("%-20s", "Name");
	printf("%-20s", "Cost");

	for (int i = 0; i < N; i++) {
		if (Aut == mas[i].Author) {
			printf("%-20s", mas[i].Author);
			printf("%-20s", mas[i].Name);
			printf("%-20s", mas[i].Cost);
		}
	}
}

int main()
{
    return 0;
}