BEst!

#include <iostream>
#include <fstream>

using namespace std;

int main()
{
	ofstream fout("in.dat", ios_base::binary);
	int i, n;
	do
	{
		cout << "Enter N: ";
		cin >> n;
	} while (n <= 0);
	cout << "Enter " << n << " number\n";
	int m;
	for (i = 0; i < n; i++)
	{
		cout << "Enter number ";
		cin >> m;
		fout.write((char*)&m, sizeof m);
	}
	fout.close();
	ifstream fin("in.dat", ios_base::binary);
	int minus;
		while (!fin.eof())
		{
			fin.read((char*)&m, sizeof m);
			if (m < 0)
				cout << m << " ";
		}
	fin.close();
	system("pause");
	return 0;
}