skinny

	
	var src = (from l in GetInput().Take(2)
				
				  let parts = l.Split(new[] { '[', ']' }, StringSplitOptions.RemoveEmptyEntries)
				  
				  select new
				  {
					  Sequences = parts.Where((c, i) => i % 2 != 0).Select(x=>GetAbba(x)).Where(y=>y!=null),
					  Bracketed = parts.Where((c, i) => i % 2 == 0).Select(x=>GetAbba(x)).Where(y=>y!=null)
				  }

skinny

public string B()
{return GetInput().Split(new[]{Environment.NewLine},StringSplitOptions.None).Count(s=>{var split=s.Split(new[]{'[',']'},StringSplitOptions.None);var sequences=split.Where((c,i)=>i%2==0).ToArray();var bracketed=split.Where((c,i)=>i%2!=0).ToArray();foreach(var sq in sequences)
{for(var i=0;i<sq.Length-2;i++)
{if(sq[i]!=sq[i+2]||sq[i]==sq[i+1])continue;if(bracketed.Any(x=>x.Contains(string.Format("{1}{0}{1}",sq[i],sq[i+1]))))return true;}}
return false;}).ToString();}

skinny

    private void MakeMove(Move move)
    {

      this.Apply(move);
      _state.Push(move);

      if (this.IsValid())
      {

        var sc = this.GetStateCode();

skinny

4 -> 3 : HM
3 -> 4 : LG,HG
4 -> 3 : HG
3 -> 4 : HG,HM
4 -> 3 : HM,LM
3 -> 4 : HM
4 -> 3 : LG,HG
3 -> 4 : HG
2 -> 3 : HG,HM
3 -> 2 : HG

skinny

 public enum ElementType
  {
    Generator = 0,
    MicroChip = 1,
  }

  public class Move
  {
    public Component[] Components { get; set; }
    public Floor SourceFloor { get; set; }

skinny

 public class AoC_20161302
  {
    private int _favouriteNumber;

    SortedDictionary<Tuple<int, int>, char> Maze = new SortedDictionary<Tuple<int, int>, char>();

    public AoC_20161302(int fav)
    {
      _favouriteNumber = fav;
    }

skinny

  class AoC20161402
  {
    string input = @"zpqevtbw";

    MD5 md5 = MD5.Create();

    List<string> hashes = new List<string>();

    public string ToHex(byte[] bytes)
    {

skinny

 class AoC20161501
  {
    public Tuple<int, int>[] Dials { get; private set; }


    public AoC20161501()
    {
      Dials = new[] {
       Tuple.Create(13,11),
       Tuple.Create(5,0),

skinny

public class Elf
{
	public string Name { get; set; }
	public int Presents { get; set; }

}
int numberOfElves = 3017957;


void Main()

skinny

Regex regex = new Regex(@"(letter|positions|through|position of letter|position|right|left)\s(\w)");

void Process(string instruction)
{
	var parts = instruction.Split(new[] { ' ' }, 2);

	MatchCollection matches = regex.Matches(parts[1]);

	var values = (from Match m in matches
				  select m.Groups[1].Value.Contains("letter") ? password.IndexOf(m.Groups[2].Value[0]) : Int32.Parse(m.Groups[2].Value)