public void PartOne(string[] input, TextWriter @out)
{
const int cards = 10_007;
var deck = Enumerable.Range(0, cards).ToArray();
@out.WriteLine($"Card at position 2019: {Array.IndexOf(deck, 2019)}");
var resultDeck = ShuffleTechniques.RunShuffleTechnique <int>(deck, input);
@out.WriteLine($"Position of card 2019: {Array.IndexOf(resultDeck, 2019)}");
}
public void PartTwo(string[] input, TextWriter @out)
{
var deck = MassiveDeck().ToArray();
for (long i = 0; i < 101_741_582_076_661; i++)
{
@out.WriteLine($"Shuffle {i}");
deck = ShuffleTechniques.RunShuffleTechnique <long>(deck, input);
}
@out.WriteLine($"Position 2020 contains card: {deck[2020]}");
}