public static string Part2(int listSize, string input)
{
var standardAddition = new int[] { 17, 31, 73, 47, 23 };
var lengths = input.Select(c => (int)Convert.ToByte(c)).Concat(standardAddition).ToArray();
var runner = new KnotRunner(listSize, lengths);
var denseHash = runner.GetResult();
var hexString = BitConverter.ToString(denseHash.ToArray());
return(hexString.Replace("-", string.Empty));
}
private static Dictionary <ValueTuple <int, int>, Point> GetGrid(string input)
{
var grid = new Dictionary <ValueTuple <int, int>, Point>();
var standardAddition = new int[] { 17, 31, 73, 47, 23 };
for (int i = 0; i < 128; i++)
{
var part = input + "-" + i;
var lengths = part.Select(c => (int)Convert.ToByte(c)).Concat(standardAddition).ToArray();
var runner = new KnotRunner(256, lengths);
var result = runner.GetResult().SelectMany(k => Convert.ToString(k, 2).PadLeft(8, '0').Select(c => c == '0' ? 0 : 1)).ToList();
for (var j = 0; j < result.Count(); j++)
{
grid.Add(new ValueTuple <int, int>(i, j), new Point(i, j, result[j]));
}
}
return(grid);
}