Scaffold for Day 4

Day4/Day4.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <RootNamespace>Day2</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Update="inputs\lan-input.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="inputs\sample-input.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="inputs\sample-input2.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="inputs\lar-input.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

Day4/Program.cs

@@ -0,0 +1,9 @@
+using Day4;
+
+if (args.Length < 1)
+{
+    Console.WriteLine("Requires 1 args: inputFileName");
+    return -1;
+}
+
+var inputFile = args[0];