#include "stdafx.h"
#include "iostream"
#include "stdio.h"

using namespace std;

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

class Auto {
	Info* mas;
	int N;
public:
	void Input();
	double AvgCost();
	void Sort();
	void WriteBinFL();
	void WriteFile();
};

void Auto::Input() {
	cout << "Enter amount" << endl;
	cin >> N;
	mas = (Info*)malloc(sizeof(Info));
	for (int i = 0; i < N; i++)
	{
		cout << "Enter name" << endl; cin >> mas[i].Name;
		cout << "Enter cost" << endl; cin >> mas[i].Cost;
		cout << "Enter year" << endl; cin >> mas[i].Year;
		cout << "Enter pr" << endl; cin >> mas[i].Probeg;
	}
}

double Auto::AvgCost() {
	int Sum = 0;
	for (int i = 0; i < N; i++)
	{
		Sum += mas[i].Cost;
	}
	return Sum / N;
}

void Auto::WriteFile() {
	FILE *f;
	fopen_s(&f, "Auto.txt", "wt");
	fprintf(f, "%-20c", "Name");
	fprintf(f, "%-20c", "Year");
	fprintf(f, "%-20c", "Probeg");
	fprintf(f, "%-20c", "Cost");
	fprintf(f, "\n");

	for (int i = 0; i < N; i++)
	{
		if (mas[i].Cost < AvgCost())
		{
			fprintf(f, "%-20c", mas[i].Name);
			fprintf(f, "%-20d", mas[i].Year);
			fprintf(f, "%-20d", mas[i].Probeg);
			fprintf(f, "%-20d", mas[i].Cost);
			fprintf(f, "\n");
		}
	}fclose(f);
	cout << "Произведена запись в тхт файл" << endl;
}


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

void Auto::WriteBinFL() {
	FILE *q;
	fopen_s(&q, "Auto.bin", "wb");
	for (int i = 0; i < N; i++) {
		fwrite(mas + i, sizeof(Info), 1, q);
	}
	fclose(q);
	cout << "Произведена запись в бин файл";
}

int main()
{
	setlocale(LC_ALL, "Russian");

	Auto q;
	q.Input();
	q.AvgCost();
	q.Sort();
	q.WriteFile();
	q.WriteBinFL();

	system("pause");
	return 0;
}