static void Main()
{
var sw = new Stopwatch();
sw.Start();
_input = File.ReadAllText("../../../input.txt").ParseLongs();
_pointCache = new Dictionary <Point, bool>();
var computer = LongCodeComputer.FromFile(@"../../../input.txt");
var sum = 0;
for (int y = 0; y < 50; y++)
{
for (int x = 0; x < 50; x++)
{
var inBeam = getPoint(x, y);
sum += inBeam ? 1 : 0;
Console.Write(inBeam ? '#' : '.');
}
Console.WriteLine();
}
Console.WriteLine($"Part 1: {sum}");
var probe = new Point(0, 10);
var diagMove = new Size(1, -1);
var topLeft = Point.Empty;
while (topLeft == Point.Empty)
{
while (!getPoint(probe))
{
probe = probe.MoveTo(Direction.Right);
}
var diagonal = new BinarySearchInt(dx => getPoint(probe + (diagMove * dx))).FindLast();
if (diagonal >= 98)
{
var rect = new Rectangle(probe.X, probe.Y - 99, 100, 100);
if (allPointsInBeam(rect))
{
topLeft = rect.Location;
break;
}
}
probe = probe.MoveTo(Direction.Down);
}
Console.WriteLine($"Part 2: topleft point is at {topLeft} => answer = {topLeft.X * 10000 + topLeft.Y}");
//Console.WriteLine("15231022");
sw.Stop();
Console.WriteLine($"Solving took {sw.ElapsedMilliseconds}ms.");
_ = Console.ReadLine();
}
static void Main()
{
var sw = new Stopwatch();
sw.Start();
//var input = File.ReadAllText("../../../input.txt").ParseLongs();
var c = LongCodeComputer.FromFile(@"../../../input.txt");
c.Store(0, 2);
var path = "R8L12R8R8L12R8L10L10R8L12L12L10R10L10L10R8L12L12L10R10L10L10R8R8L12R8L12L12L10R10R8L12R8";
var segments = new Stack <(char name, string value)>();
_ = FindPathFunctions(path, segments);
foreach (var func in segments)
{
Console.WriteLine($"Function {func.name} should be {func.value}");
}
Console.ReadLine();
Console.WindowHeight = Math.Max(Console.WindowHeight, 40);
Queue(c, "A,A,B,C,B,C,B,A,C,A\n");
Queue(c, "R,8,L,12,R,8\n");
Queue(c, "L,10,L,10,R,8\n");
Queue(c, "L,12,L,12,L,10,R,10\n");
Queue(c, "Y\n");
c.RunForOutputs(2167);
Console.Clear();
c.Outputs.Clear();
while (c.RunForOutputs(2101))
{
Paint(c.Outputs);
c.Outputs.Clear();
}
var collectedDust = c.Outputs.Dequeue();
Console.WriteLine($"Part 2: {collectedDust} dust collected.");
sw.Stop();
Console.WriteLine($"Solving took {sw.ElapsedMilliseconds}ms.");
_ = Console.ReadLine();
}
static void Main()
{
var sw = new Stopwatch();
sw.Start();
var c = LongCodeComputer.FromFile(@"../../../input.txt");
var allCommands = new List <string>();
if (File.Exists(@"../../../commands.txt"))
{
allCommands = File.ReadAllLines(@"../../../commands.txt").ToList();
foreach (var item in allCommands)
{
c.QueueInput(item);
}
}
_ = c.RunUntilInputRequired();
PrintOutputs(c);
var items = new string[] { "asterisk", "ornament", "cake", "space heater", "festive hat", "semiconductor", "food ration", "sand" };
TryAllCombinations(c, items);
while (c.RunUntilInputRequired())
{
PrintOutputs(c);
var cmd = Console.ReadLine();
allCommands.Add(cmd);
c.QueueInput(cmd);
}
PrintOutputs(c);
Console.WriteLine($"Part 1: ");
sw.Stop();
Console.WriteLine("Save commands?");
if (Console.ReadLine() == "y")
{
File.WriteAllLines(@"../../../commands.txt", allCommands);
}
Console.WriteLine($"Solving took {sw.ElapsedMilliseconds}ms.");
_ = Console.ReadLine();
}
static void Main()
{
var sw = new Stopwatch();
sw.Start();
var computers = new LongCodeComputer[50];
for (int i = 0; i < 50; i++)
{
computers[i] = LongCodeComputer.FromFile(@"../../../input.txt");
computers[i].Inputs.Enqueue(i);
computers[i].DefaultInput = -1;
}
Packet?natPacket = null;
Packet?lastNatPacket = null;
Packet?firstNatPacket = null;
var idlePeriod = 0;
var runNetwork = true;
while (runNetwork)
{
foreach (var c in computers)
{
c.Run(2);
}
var packets = computers.SelectMany(c => CollectPackets(c)).ToList();
if (packets.Any())
{
idlePeriod = 0;
foreach (var p in packets)
{
if (p.addr == 255)
{
natPacket = p;
}
else
{
QueuePacket(computers[p.addr], p);
}
}
}
else
{
idlePeriod++;
}
if (idlePeriod > 1000 && natPacket.HasValue)
{
// Send packet to fight network idling
QueuePacket(computers[0], natPacket.Value);
idlePeriod = 0;
firstNatPacket ??= natPacket;
Console.WriteLine($"Sent packet {natPacket.Value.y}");
if (lastNatPacket.HasValue && lastNatPacket.Value.y == natPacket.Value.y)
{
Console.WriteLine($"Duplicate y! {natPacket.Value.y}");
runNetwork = false;
}
lastNatPacket = natPacket;
natPacket = null;
}
}
// 19420 is too high
Console.WriteLine($"Part 1: santa packet has y value {firstNatPacket.Value.y}");
sw.Stop();
Console.WriteLine($"Solving took {sw.ElapsedMilliseconds}ms.");
_ = Console.ReadLine();
}
static void Main()
{
var sw = new Stopwatch();
sw.Start();
var c = LongCodeComputer.FromFile(@"../../../input.txt");
Console.WindowHeight = Math.Max(Console.WindowHeight, 40);
c.QueueInput("NOT A J");
c.QueueInput("NOT B T");
c.QueueInput("OR T J");
c.QueueInput("NOT C T");
c.QueueInput("OR T J");
c.QueueInput("AND D J");
c.QueueInput("WALK");
Console.Clear();
c.Outputs.Clear();
c.Run();
if (c.Outputs.Last() < 256)
{
Console.WriteLine($"Bad code!");
Paint(c.Outputs);
_ = Console.ReadLine();
return;
}
var shipDamage = c.Outputs.Last();
Console.WriteLine($"Part 1: damage = {shipDamage}");
c = LongCodeComputer.FromFile(@"../../../input.txt");
c.QueueInput("NOT A J");
c.QueueInput("NOT B T");
c.QueueInput("OR T J");
c.QueueInput("NOT C T");
c.QueueInput("OR T J");
c.QueueInput("AND D J");
c.QueueInput("NOT E T");
c.QueueInput("NOT T T");
c.QueueInput("OR H T");
c.QueueInput("AND T J");
c.QueueInput("RUN");
c.Outputs.Clear();
c.Run();
if (c.Outputs.Last() < 256)
{
Console.WriteLine($"Bad code!");
Paint(c.Outputs);
_ = Console.ReadLine();
return;
}
shipDamage = c.Outputs.Last();
Console.WriteLine($"Part 2: damage = {shipDamage}");
sw.Stop();
Console.WriteLine($"Solving took {sw.ElapsedMilliseconds}ms.");
_ = Console.ReadLine();
}