бинарные файлы

#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
int main()
{
    ofstream out("chetni.txt", ios::binary);
    int n;
    int k = 0;
    cin >> n;
    for (int i = 0; i <= n; i++)
    {
        k = i;
        out.write((char*)& k, sizeof(double));
    }
    out.close();
    ifstream in("chetni.txt", ios::binary);
    while (in.peek() != EOF)
    {
        in.read((char*)& k, sizeof(double));
        if((k%2==0)&&(k!=0))
            cout << k << ' ';
        in.seekg(sizeof(double), ios::cur);
    }
    in.close();
    return 0;
}