public static void Main(string[] args)
{
Console.WriteLine("Advent Of Code 2016, day 7");
var input = InputUtils.GetInput(args).ReadToEnd();
var inputData = input
.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries)
.Select(Decompose)
.ToList();
var tlsAddresses = inputData
.Where(h => h.OutParts.Any(AbbaRegex.IsMatch) && !h.InParts.Any(AbbaRegex.IsMatch));
Console.WriteLine($"Count of addresses supporting TLS: {tlsAddresses.Count()}");
var sslAddresses = inputData
.Select(holder => new
{
InPartMatches = GetMatches(holder.InParts),
OutPartMatches = GetMatches(holder.OutParts)
})
.Select(a =>
a.InPartMatches.SelectMany(@in => a.OutPartMatches, (@in, @out) => new { @in, @out })
.Where(@t => AbaMatch(@t.@in, @t.@out))
.Select(@t => new { InPart = @t.@in, OutPart = @t.@out })
)
.Where(a => a.Any());
Console.WriteLine($"Count of addresses supporting SSL: {sslAddresses.Count()}");
}
public static void Main(string[] args)
{
Console.WriteLine("Advent Of Code 2016, day 3");
var input = InputUtils.GetInput(args).ReadToEnd();
var trianglesData = input
.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries)
.Select(s => s.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).Select(int.Parse).ToArray())
.ToList();
var possibleTrianglesCount = trianglesData.Count(PossibleTriangle);
Console.WriteLine($"Possible triangles count: {possibleTrianglesCount}");
var trianglesData2 = trianglesData.Select(x => x[0])
.Concat(trianglesData.Select(x => x[1]))
.Concat(trianglesData.Select(x => x[2]))
.PackBy(3)
.Select(x => x.ToArray())
.ToList();
var possibleTrianglesCount2 = trianglesData2.Count(PossibleTriangle);
Console.WriteLine($"Possible triangles count 2: {possibleTrianglesCount2}");
}
public static void Main(string[] args)
{
Console.WriteLine("Advent Of Code 2016, day 4");
var input = InputUtils.GetInput(args).ReadToEnd();
var lines = input.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
var regex = new Regex(@"^(?:(?<letters>[a-z]+)-)+(?<sectorid>\d+)\[(?<checksum>[a-z]*)\]$", RegexOptions.Compiled | RegexOptions.IgnoreCase);
var noDecoys = lines.Select(line => regex.Match(line))
.Where(NotDecoy)
.ToList();
var sumOfSectorIds = noDecoys
.Select(GetSectorId)
.Sum();
Console.WriteLine($"Sum of sector IDs is {sumOfSectorIds}");
var sector = noDecoys
.Select(match => new { Name = Decrypt(match), SectorID = GetSectorId(match) })
.FirstOrDefault(a => a.Name.Contains("northpole"));
if (sector != null)
{
Console.WriteLine($"Northpole objects stored in Sector #{sector.SectorID} ({sector.Name})");
}
}
public static void Main(string[] args)
{
Console.WriteLine("Advent Of Code 2016, day 2");
var input = InputUtils.GetInput(args).ReadToEnd();
var lines = input.Split('\n');
var parser = new MoveDirectionParser();
var clicker = new KeypadClicker(new DiamondKeypad());
foreach (var line in lines)
{
var letters = line.Select(parser.Parse);
foreach (var moveDirection in letters)
{
clicker.Move(moveDirection);
}
Console.WriteLine(clicker.CurrentButton);
}
Console.ReadLine();
}
public static void Main(string[] args)
{
Console.WriteLine("Advent Of Code 2016, day 9");
var input = InputUtils.GetInput(args).ReadToEnd().Trim();
var decompressedFileLength = GetDecompressedFileLength(input, recurse: false);
Console.WriteLine($"Decompressed file length: {decompressedFileLength}");
var decompressedFileV2Length = GetDecompressedFileLength(input);
Console.WriteLine($"Decompressed file v2 length: {decompressedFileV2Length}");
}
public static void Main(string[] args)
{
Console.WriteLine("Advent Of Code 2016, day 1");
var input = InputUtils.GetInput(args).ReadToEnd();
var routeParser = new RouteParser();
var steps = routeParser.GetSteps(input).ToArray();
var walker = new RouteWalker();
walker.Walk(steps);
var totalDistance = Math.Abs(walker.XCoordinate) + Math.Abs(walker.YCoordinate);
Console.WriteLine($"Answer to question 1: {totalDistance}");
RoutePoint intersection = null;
for (int i = 4; i <= walker.Links.Count; i++)
{
var subList = walker.Links.Take(i).ToList();
var subject = subList.Last();
foreach (var routeLink in subList.AsEnumerable().Reverse().Skip(3))
{
intersection = subject.FindIntersection(routeLink);
if (intersection != null)
{
break;
}
}
if (intersection != null)
{
break;
}
}
if (intersection != null)
{
var intersectionDistance = Math.Abs(intersection.X) + Math.Abs(intersection.Y);
Console.WriteLine($"Answer to question 2: {intersectionDistance}");
}
}
public static void Main(string[] args)
{
Console.WriteLine("Advent Of Code 2016, day 6");
var input = InputUtils.GetInput(args).ReadToEnd();
var datas = input.Split(new [] { '\n' }, StringSplitOptions.RemoveEmptyEntries).ToList();
var length = datas.First().Length;
var sb = new StringBuilder(length);
for (int i = 0; i < length; i++)
{
var commonLetter = datas.Select(d => d[i])
.GroupBy(c => c)
.OrderByDescending(grp => grp.Count())
.Select(grp => grp.Key)
.First();
sb.Append(commonLetter);
}
Console.WriteLine($"The message is '{sb}'");
sb = new StringBuilder(length);
for (int i = 0; i < length; i++)
{
var commonLetter = datas.Select(d => d[i])
.GroupBy(c => c)
.OrderBy(grp => grp.Count())
.Select(grp => grp.Key)
.First();
sb.Append(commonLetter);
}
Console.WriteLine($"The REAL message is '{sb}'");
}
public static void Main(string[] args)
{
Console.WriteLine("Advent Of Code 2016, day 8");
var input = InputUtils.GetInput(args).ReadToEnd();
var commandParser = new CommandParser();
var commands = input.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries)
.Select(commandParser.Parse);
var screen = new Screen(50, 6);
foreach (var screenCommand in commands)
{
screenCommand.Execute(screen);
}
Console.WriteLine(screen);
Console.WriteLine($"Bits turned on: {screen.ScreenBits.Cast<bool>().Count(x => x)}");
}
public static void Main(string[] args)
{
Console.WriteLine("Advent Of Code 2016, day 10");
var input = new AntlrInputStream(InputUtils.GetInput(args));
var lexer = new BotsScriptLexer(input);
var tokens = new CommonTokenStream(lexer);
var parser = new BotsScriptParser(tokens);
var program = parser.program();
IList <ITask> tasks = new List <ITask>();
var botsPlayground = new BotsPlayground();
var listener = new ExecutingListener(tasks, botsPlayground);
var walker = new ParseTreeWalker();
walker.Walk(listener, program);
while (tasks.Any())
{
foreach (var task in tasks)
{
if (task.AttemptToExecute(Inspect))
{
tasks.Remove(task);
break;
}
}
}
var output0 = botsPlayground.GetOutput(0);
var output1 = botsPlayground.GetOutput(1);
var output2 = botsPlayground.GetOutput(2);
Console.WriteLine($"O0 * O1 * O2 = {output0.Value*output1.Value*output2.Value}");
}
