Initial Commit
This commit is contained in:
Jose Caban
14
2024/Day06CSharp/Day06CSharp.csproj
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14
2024/Day06CSharp/Day06CSharp.csproj
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@@ -0,0 +1,14 @@
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net9.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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<ItemGroup>
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<ProjectReference Include="..\AdventCommon\AdventCommon.csproj" />
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</ItemGroup>
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</Project>
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334
2024/Day06CSharp/Program.cs
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334
2024/Day06CSharp/Program.cs
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using System.Runtime.InteropServices;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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var exParsed = new Day06Parsed("example-input.txt");
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Console.WriteLine("Example Part01: {0}", exParsed.GetPart01());
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Console.WriteLine("Example Part02: {0}", exParsed.GetPart02());
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var pzParsed = new Day06Parsed("puzzle-input.txt");
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Console.WriteLine("Puzzle Part01: {0}", pzParsed.GetPart01());
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Console.WriteLine("Puzzle Part02: {0}", pzParsed.GetPart02());
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class Day06Parsed : AdventCommon.ParsedInput
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{
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public enum Direction
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{
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UP,
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DOWN,
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LEFT,
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RIGHT
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}
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public enum BLOCK_STATE
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{
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UNTOUCHED,
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OBSTACLE,
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VISITED
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}
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public class GridSquare
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{
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public GridSquare(BLOCK_STATE state)
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{
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State = state;
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}
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public BLOCK_STATE State { get; set; } = BLOCK_STATE.UNTOUCHED;
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public bool hasVisited() { return State == BLOCK_STATE.VISITED; }
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public bool VisitedFacingUp { get; set; } = false;
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public bool VisitedFacingDown { get; set; } = false;
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public bool VisitedFacingLeft { get; set; } = false;
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public bool VisitedFacingRight { get; set; } = false;
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public GridSquare Clone()
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{
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return (GridSquare)MemberwiseClone();
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}
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}
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public class Guard
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{
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public Guard() { }
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public Guard(Guard other)
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{
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CurrentDirection = other.CurrentDirection;
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X = other.X;
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Y = other.Y;
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IsGone = other.IsGone;
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}
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public Direction CurrentDirection { get; set; }
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public int X { get; set; }
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public int Y { get; set; }
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public bool IsGone { get; set; } = false;
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public Guard Clone()
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{
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return (Guard)MemberwiseClone();
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}
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}
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public class Level
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{
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public List<List<GridSquare>> Grid { get; set; } = new List<List<GridSquare>>();
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public Guard SecurityGuard { get; set; } = new Guard();
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public int CountVisited() => Grid.SelectMany(x => x).Count(x => x.State == BLOCK_STATE.VISITED);
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public bool GuardIsAround()
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{
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return SecurityGuard.X >= 0 && SecurityGuard.Y >= 0;
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}
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public enum SIMULATION_RESULT
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{
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CONTINUE,
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DONE,
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LOOP
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}
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public SIMULATION_RESULT SimStep()
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{
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if (SecurityGuard.IsGone) return SIMULATION_RESULT.DONE;
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try
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{
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int newY = SecurityGuard.Y, newX = SecurityGuard.X;
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switch (SecurityGuard.CurrentDirection)
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{
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case Direction.UP:
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newY = SecurityGuard.Y-1;
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break;
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case Direction.DOWN:
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newY = SecurityGuard.Y+1;
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break;
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case Direction.LEFT:
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newX = SecurityGuard.X-1;
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break;
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case Direction.RIGHT:
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newX = SecurityGuard.X+1;
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break;
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}
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if (Grid[newY][newX].State == BLOCK_STATE.OBSTACLE)
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{
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switch (SecurityGuard.CurrentDirection)
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{
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case Direction.UP:
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SecurityGuard.CurrentDirection = Direction.RIGHT;
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break;
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case Direction.DOWN:
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SecurityGuard.CurrentDirection = Direction.LEFT;
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break;
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case Direction.LEFT:
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SecurityGuard.CurrentDirection = Direction.UP;
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break;
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case Direction.RIGHT:
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SecurityGuard.CurrentDirection = Direction.DOWN;
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break;
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}
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}
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else
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{
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if (Grid[newY][newX].State == BLOCK_STATE.VISITED)
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{
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// We've already visited this block, check if we're looping
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bool hasLooped = false;
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switch (SecurityGuard.CurrentDirection)
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{
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case Direction.UP:
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if (Grid[newY][newX].VisitedFacingUp) hasLooped = true;
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break;
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case Direction.DOWN:
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if (Grid[newY][newX].VisitedFacingDown) hasLooped = true;
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break;
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case Direction.LEFT:
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if (Grid[newY][newX].VisitedFacingLeft) hasLooped = true;
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break;
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case Direction.RIGHT:
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if (Grid[newY][newX].VisitedFacingRight) hasLooped = true;
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break;
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default:
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throw new Exception("Unknown direction");
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}
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if (hasLooped) return SIMULATION_RESULT.LOOP;
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}
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SecurityGuard.X = newX;
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SecurityGuard.Y = newY;
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Grid[newY][newX].State = BLOCK_STATE.VISITED;
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switch (SecurityGuard.CurrentDirection)
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{
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case Direction.UP:
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Grid[newY][newX].VisitedFacingUp = true;
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break;
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case Direction.DOWN:
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Grid[newY][newX].VisitedFacingDown = true;
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break;
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case Direction.LEFT:
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Grid[newY][newX].VisitedFacingLeft = true;
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break;
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case Direction.RIGHT:
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Grid[newY][newX].VisitedFacingRight = true;
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break;
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}
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}
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}
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catch (Exception)
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{
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// Guard left the area
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SecurityGuard.IsGone = true;
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return SIMULATION_RESULT.DONE;
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}
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return SIMULATION_RESULT.CONTINUE;
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}
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public SIMULATION_RESULT SimulateAll()
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{
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SIMULATION_RESULT result;
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for (result = SIMULATION_RESULT.CONTINUE; result == SIMULATION_RESULT.CONTINUE; result = SimStep());
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return result;
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}
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public Level Clone()
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{
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bool useJson = false;
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if (!useJson)
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{
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Level other = new Level();
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// Copy the grid
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foreach (var row in this.Grid)
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{
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List<GridSquare> newRow = new List<GridSquare>();
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foreach (var s in row)
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{
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newRow.Add(s.Clone());
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}
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other.Grid.Add(newRow);
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}
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// Copy the guard
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other.SecurityGuard = SecurityGuard.Clone();
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return other;
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}
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else
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{
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var jsonString = JsonSerializer.Serialize(this);
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var copy = JsonSerializer.Deserialize<Level>(jsonString);
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if (copy == null) throw new Exception("Failed to clone");
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return copy;
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}
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}
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public GridSquare GetGridSquare(int x, int y) => Grid[y][x];
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}
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Level CurrentLevel { get; set; } = new Level();
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public Day06Parsed(string fileName) : base(fileName)
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{
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}
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public override int GetPart01()
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{
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var level = CurrentLevel.Clone();
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level.SimulateAll();
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return level.CountVisited();
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}
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public override int GetPart02()
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{
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// First simulate everything as a base
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var simulatedOriginalLevel = CurrentLevel.Clone();
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simulatedOriginalLevel.SimulateAll();
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int loops = 0;
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// Iterate across the level and find loops
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List<(int,int)> visited = new List<(int,int)>();
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for (int y = 0; y < simulatedOriginalLevel.Grid.Count; y++)
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{
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for (int x = 0; x < simulatedOriginalLevel.Grid[y].Count; x++)
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{
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if (simulatedOriginalLevel.Grid[y][x].State == BLOCK_STATE.VISITED)
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{
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visited.Add((x, y));
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}
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}
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}
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// Run simulations in parallel because we can
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Parallel.ForEach(visited, coords =>
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{
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int x = coords.Item1;
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int y = coords.Item2;
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//var loopTest = coords.Item3;
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var loopTest = CurrentLevel.Clone();
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loopTest.GetGridSquare(x, y).State = BLOCK_STATE.OBSTACLE;
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var result = loopTest.SimulateAll();
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if (result == Level.SIMULATION_RESULT.LOOP) loops++;
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});
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return loops;
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}
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public override bool ParseLine(string line, object? context = null)
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{
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List<GridSquare> list = new List<GridSquare>();
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int index = 0;
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foreach (char c in line)
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{
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switch (c)
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{
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case '.':
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list.Add(new GridSquare(BLOCK_STATE.UNTOUCHED));
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break;
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case '#':
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list.Add(new GridSquare(BLOCK_STATE.OBSTACLE));
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break;
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case '^':
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var gridSquare = new GridSquare(BLOCK_STATE.VISITED);
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int guardY = CurrentLevel.Grid.Count;
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int guardX = index;
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CurrentLevel.SecurityGuard.CurrentDirection = Direction.UP;
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CurrentLevel.SecurityGuard.X = guardX;
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CurrentLevel.SecurityGuard.Y = guardY;
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gridSquare.VisitedFacingUp = true;
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list.Add(gridSquare);
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break;
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default:
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throw new Exception("Unknown character");
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}
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index++;
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}
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CurrentLevel.Grid.Add(list);
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return true;
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}
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}
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8
2024/Day06CSharp/Properties/launchSettings.json
Normal file
8
2024/Day06CSharp/Properties/launchSettings.json
Normal file
@@ -0,0 +1,8 @@
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{
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"profiles": {
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"Day06CSharp": {
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"commandName": "Project",
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"workingDirectory": "C:\\dev\\dev-drive\\DevSandbox\\AdventOfCode\\2024\\Day06CSharp"
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}
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}
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}
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10
2024/Day06CSharp/example-input.txt
Normal file
10
2024/Day06CSharp/example-input.txt
Normal file
@@ -0,0 +1,10 @@
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....#.....
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.........#
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..........
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..#.......
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.......#..
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||||
..........
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.#..^.....
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........#.
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||||
#.........
|
||||
......#...
|
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130
2024/Day06CSharp/puzzle-input.txt
Normal file
130
2024/Day06CSharp/puzzle-input.txt
Normal file
@@ -0,0 +1,130 @@
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........................#........#................#.............#..#....#.#.#.........#........##..................#..#...........
|
||||
.#........#......##........#.................................................#.#.........#......#.................................
|
||||
...........#.#.##.#.........#.#..#............#.....................................................#.............#...............
|
||||
..........#...............#......#...............#.#..............................#..........#........#..#...##.........#..#......
|
||||
..........................................................#...........................................#...........................
|
||||
................#.....#.............#...........................................................#.....#..........#...#...##.......
|
||||
.....................#......#....................#..................#.....................#................................#......
|
||||
......#........#.........#.....................................#......................#...........#................#.......#......
|
||||
.........#.......#...#..................##.#...#...........#.......#............#...#....#...........#................#...........
|
||||
..........................................#..........................#........#.....##............#.........................#.....
|
||||
..........#...................##.......#.............#....##..............#.........#..............#........#..........#....#.....
|
||||
.#....##........#.....................................#...#.............................#..............#.....#....................
|
||||
....#..#................................................#.......#..........#.....#.....#..........................................
|
||||
.............##...............#..........#...............................................#............#..............#..##....#...
|
||||
......#...............#...............#.........................................................................#.#..............#
|
||||
......#........................................................................................#.......#.....#................#...
|
||||
.......#..#...#.............................#......#.....#........................................#.........................#..##.
|
||||
.................................#..................#.......#......#...................#...................#.......#............#.
|
||||
......#....................#.........................#........................................................#...#.......#..#..#.
|
||||
..##....#...............................#.................#....#........#......#..........#....#........#..................#......
|
||||
..................#..........#................................#.........#...........#..#......#.....................#.............
|
||||
##.................................................#..............#....#...............#..........................................
|
||||
....#..............#.............#..........................................................................#................#....
|
||||
..................................................#...#..#.......#................................................#...........#...
|
||||
.....#.......#...............................................................#......#.....#......................................#
|
||||
....#....................##....................#............#................................#..#....#....#..........#............
|
||||
.#.........................#.....................#..........................##............................................#.......
|
||||
.......................#.........................................#................................................................
|
||||
...............#........................................................................#..........#.............................#
|
||||
.#..............................#..#....................#........................#......#.#......#.......#....................#..#
|
||||
..........................#........#.........#.........#...#..#................#........#.........................#...............
|
||||
..#.................................#.........#......................#............................................................
|
||||
...........................#..............................................#.................#...............#.....................
|
||||
..........#..................#.............................................#.......................#..............................
|
||||
....................#............##..........................#...............#..........#.......................................#.
|
||||
....................#....#.....................................................................#.................................#
|
||||
....#.......#...................#....#.#....#..................................#.#....#..#.............................#.....##...
|
||||
.............#.#...................................................................#........#..............................#......
|
||||
.......................#.....................#.......#.........................................#..........#.......................
|
||||
...............#..............#..................................#.............#..................................................
|
||||
......................................................................................#........#......................#.....#.....
|
||||
.........#.....................................................#................#..........................#........###...........
|
||||
...................#..##...............#......................#...................................................................
|
||||
.............#........................................#..................................#.#.#....................................
|
||||
......#............#.........................#..........#..#.................................................................##...
|
||||
............#...............#..................................#...........#...............................#...........#..........
|
||||
................#.......#.......................#................#.............#................................#.................
|
||||
.........................#.#.........#..#.....#.....................................#................................#............
|
||||
..#...............#..#..........................#.#.....#....................#....................................................
|
||||
................................................................................#..........#..............#.......................
|
||||
............#.#......#......#........#..................#...#.....................................................................
|
||||
....#......................#........................#..................#......#.....#.............................................
|
||||
.#..................#...........................#..........#..........................................#....#......................
|
||||
...............#......................#.......#.....#...#.................#...............................................#.......
|
||||
#...#.......#..............................................................................................#...........#......#...
|
||||
........................#......................#..........#...............................##......#...........................#...
|
||||
....................#....#..............#.....#.....#................#............................................................
|
||||
................#........................................................................................#........................
|
||||
...##................#.............#..............................................................................................
|
||||
.#....#........................................................................................................................##.
|
||||
..#...................................#......#.#......#...................#........#.............................#....##..........
|
||||
.......................................................#..#....#..#.................................................#.............
|
||||
............#..................#......#.....#...........................................................#..#........#............#
|
||||
..#................................#....................................................................#.............#......#....
|
||||
..#..........#........#..............................................................................................#............
|
||||
.....#.....................#..............#.................................#................................#...#................
|
||||
........................#........#..................................................................................#.............
|
||||
...#...........#.............................................#....................#....#..........#...............................
|
||||
...................#...........#...................................................................#...........#..................
|
||||
...........#............................#......................................................................................##.
|
||||
#..............#.#.......................................#.......................#.....#...........#.......#...........#.##.......
|
||||
..............................................................##.........................................#.............#.........#
|
||||
...........................#.#..................................................#..................#..#...........................
|
||||
.....................................#...............#.....#...................................#..................................
|
||||
..#...................#.#....#...#......................................................#.#..................................#....
|
||||
..........................................#......................................................................#................
|
||||
.............#...................................................................#...#....#........#...................#..........
|
||||
.......................#.......................................##...........#......#......#..............................#........
|
||||
.......#..............#..............#..............................................................#............................#
|
||||
...........................................#...#.......#......#...............................#.........#.........................
|
||||
.......#...................................................#........................^..#..........................................
|
||||
.#..........................................................................................#.......#.#..#........................
|
||||
............................##........................................................................#..#........................
|
||||
..........#.#..#....#.##........................#.................................................................................
|
||||
......#.#...................................#...#...................#.............#.....#.........................................
|
||||
.................#........................................................................................#..#.#..................
|
||||
#....................#.......................................#..#..#.....#..............#......................................#..
|
||||
..............#.#............................................................#.....#......................................#......#
|
||||
....................#.......#.............................#..............#.........................................##.............
|
||||
.....#................................#.#...........#...........#.......................................#...#....#................
|
||||
...............#...#......................#............................#..................................#.......................
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Reference in New Issue
Block a user