Completed Day 02, fixed layout

2022.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>net6.0</TargetFramework>
-    <RootNamespace>Day_01</RootNamespace>
+    <RootNamespace>2022</RootNamespace>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
@@ -12,6 +12,9 @@
     <None Update="Day 01\day-01-input.txt">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
+    <None Update="Day 02\day-02-input.txt">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
 </Project>

Advent Of Code.sln

@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.3.32922.545
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "2022", "Day 01\2022.csproj", "{0547286C-CC14-44D9-8D7B-26BAA3377721}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "2022", "2022.csproj", "{10D21159-084F-4D2B-9254-1BC9D86E60F9}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -11,10 +11,10 @@ Global
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{0547286C-CC14-44D9-8D7B-26BAA3377721}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{10D21159-084F-4D2B-9254-1BC9D86E60F9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{0547286C-CC14-44D9-8D7B-26BAA3377721}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{10D21159-084F-4D2B-9254-1BC9D86E60F9}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{0547286C-CC14-44D9-8D7B-26BAA3377721}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{10D21159-084F-4D2B-9254-1BC9D86E60F9}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{0547286C-CC14-44D9-8D7B-26BAA3377721}.Release|Any CPU.Build.0 = Release|Any CPU
+		{10D21159-084F-4D2B-9254-1BC9D86E60F9}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Day 01/Program.cs

@@ -1,4 +0,0 @@
-using Day_01.Day_01;
-
-Console.WriteLine($"Max value: {Day01.GetPart2()}");
-Console.ReadKey(true);

Day 02/Day02.cs

@@ -0,0 +1,79 @@
+namespace Day_02.Day_02
+{
+    internal class Day02
+    {
+        private static string inputPath = "Day 02/day-02-input.txt";
+
+        private static int Win = 6, Draw = 3, Lost = 0, Rock = 1, Paper = 2, Scissors = 3;
+
+        private static string OpponentRock = "A", OpponentPaper = "B", OpponentScissors = "C",
+                                  PlayRock = "X", PlayPaper = "Y", PlayScissors = "Z",
+                                PlayWin = "Z", PlayDraw = "Y", PlayLose = "X";
+
+        private static Dictionary<string, int> PossibleScores;
+
+        private static void BuildScoreDic()
+        {
+            if (PossibleScores == null)
+            {
+                PossibleScores = new Dictionary<string, int>();
+
+                // Rock combos
+                PossibleScores.Add(OpponentRock + " " + PlayPaper, Paper + Win); // win
+                PossibleScores.Add(OpponentRock + " " + PlayRock, Rock + Draw); // draw
+                PossibleScores.Add(OpponentRock + " " + PlayScissors, Scissors + Lost); // lose
+
+                // Paper
+                PossibleScores.Add(OpponentPaper + " " + PlayScissors, Scissors + Win); // win
+                PossibleScores.Add(OpponentPaper + " " + PlayPaper, Paper + Draw); // draw
+                PossibleScores.Add(OpponentPaper + " " + PlayRock, Rock + Lost); // lose
+
+                // Scissors
+                PossibleScores.Add(OpponentScissors + " " + PlayRock, Rock + Win); // win
+                PossibleScores.Add(OpponentScissors + " " + PlayScissors, Scissors + Draw); // draw
+                PossibleScores.Add(OpponentScissors + " " + PlayPaper, Paper + Lost); // lose
+            }
+        }
+
+        private static void BuildWinDrawLoseTable()
+        {
+            if (PossibleScores == null)
+            {
+                PossibleScores = new Dictionary<string, int>();
+
+                // Rock combos
+                PossibleScores.Add(OpponentRock + " " + PlayWin, Paper + Win); // win
+                PossibleScores.Add(OpponentRock + " " + PlayDraw, Rock + Draw); // draw
+                PossibleScores.Add(OpponentRock + " " + PlayLose, Scissors + Lost); // lose
+
+                // Paper
+                PossibleScores.Add(OpponentPaper + " " + PlayWin, Scissors + Win); // win
+                PossibleScores.Add(OpponentPaper + " " + PlayDraw, Paper + Draw); // draw
+                PossibleScores.Add(OpponentPaper + " " + PlayLose, Rock + Lost); // lose
+
+                // Scissors
+                PossibleScores.Add(OpponentScissors + " " + PlayWin, Rock + Win); // win
+                PossibleScores.Add(OpponentScissors + " " + PlayDraw, Scissors + Draw); // draw
+                PossibleScores.Add(OpponentScissors + " " + PlayLose, Paper + Lost); // lose
+            }
+        }
+
+        private static int GetScore(string input) => PossibleScores[input];
+
+        internal static int GetPart1()
+        {
+            BuildScoreDic();
+            return File.ReadAllLines(inputPath)
+                .Select(GetScore)
+                .Sum();
+        }
+
+        internal static int GetPart2()
+        {
+            BuildWinDrawLoseTable();
+            return File.ReadAllLines(inputPath)
+                .Select(GetScore)
+                .Sum();
+        }
+    }
+}

Program.cs

@@ -0,0 +1,4 @@
+using Day_02.Day_02;
+
+Console.WriteLine($"Max value: {Day02.GetPart2()}");
+Console.ReadKey(true);