Add AoC 2025 project structure and first solutions

AoC_2025.Runner/AoC_2025.Runner.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net9.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\AoC_2025\AoC_2025.csproj" />
+    </ItemGroup>
+
+</Project>

AoC_2025.Runner/Program.cs

@@ -0,0 +1,28 @@
+// See https://aka.ms/new-console-template for more information
+
+using System.Globalization;
+using AoC_2025;
+
+var day01 = new Day01();
+const string day01Path = @"C:\Users\p01004051\Documents\AoC-PuzzleInputs\2025\Prod\day01.txt";
+Console.WriteLine(day01.SolvePart1(day01Path));
+Console.WriteLine(day01.SolvePart2(day01Path));
+Console.WriteLine();
+
+var day02 = new Day02();
+const string day02Path = @"C:\Users\p01004051\Documents\AoC-PuzzleInputs\2025\Prod\day02.txt";
+Console.WriteLine(day02.SolvePart1(day02Path));
+Console.WriteLine(day02.SolvePart2(day02Path));
+Console.WriteLine();
+
+var day03 = new Day03();
+const string day03Path = @"C:\Users\p01004051\Documents\AoC-PuzzleInputs\2025\Prod\day03.txt";
+Console.WriteLine(day03.SolvePart1(day03Path));
+Console.WriteLine(day03.SolvePart2(day03Path));
+Console.WriteLine();
+
+var day04 = new Day04();
+const string day04Path = @"C:\Users\p01004051\Documents\AoC-PuzzleInputs\2025\Prod\day04.txt";
+Console.WriteLine(day04.SolvePart1(day04Path));
+Console.WriteLine(day04.SolvePart2(day04Path));
+Console.WriteLine();