int main() {
    int arr[5][2]={0,3,33,2,55,0,11,4,22,1};
    ofstream fout ("data.txt",ios::binary);
    fout.write((char*)arr,40);
    fout.close();
    int p = arr[0][1];
    while (p) {
        cout<<arr[p][0]<<endl;
        p = arr[p][1];
    };
    cout<<endl;
    ifstream fin ("data.txt",ios::binary);
    fin.seekg(4);
    fin.read((char*)&p,4);
    while (p) {
        fin.seekg(p*8);
        fin.read((char*)&p,4);
        cout<<p<<endl;
        fin.read((char*)&p,4);
    };
}