part one complete

AdventOfCode2025/AdventOfCode2025.csproj

@@ -32,6 +32,14 @@
       <Content Include="Input\DayFive.txt">
         <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       </Content>
+      <None Remove="Input\DaySix.txt" />
+      <Content Include="Input\DaySix.txt">
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      </Content>
+      <None Remove="Input\DaySeven.txt" />
+      <Content Include="Input\DaySeven.txt">
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      </Content>
     </ItemGroup>
 
 </Project>

AdventOfCode2025/Laboratories.cs

@@ -0,0 +1,32 @@
+using AdventOfCode2025.Utils;
+
+namespace AdventOfCode2025;
+
+public class Laboratories : IAdventSolution
+{
+    public AdventSolution Solve(string input)
+    {
+        var lines = input.SplitLines();
+        var start = lines[0].IndexOf('S');
+        var splitters = new HashSet<Coordinate>();
+        var origin = new Coordinate(start, 0);
+        Traverse(lines, origin, splitters);
+        return new AdventSolution(splitters.Count.ToString(), null);
+    }
+
+    private void Traverse(string[] map, Coordinate start, HashSet<Coordinate> splitters)
+    {
+        if (start.X < 0 || start.X >= map[0].Length)
+            return;
+        
+        for (var y = start.Y; y < map.Length; y++)
+        {
+            if (map[y][start.X] != '^') continue;
+            if (!splitters.Add(new Coordinate(start.X, y))) return;
+            
+            Traverse(map, new Coordinate(start.X + 1, y), splitters);
+            Traverse(map, new Coordinate(start.X - 1, y), splitters);
+            return;
+        }
+    }
+}

AdventOfCode2025/Program.cs

@@ -15,4 +15,10 @@ var dayFourInput = await File.ReadAllTextAsync("./Input/DayFour.txt");
 AdventSolver<PrintingDepartment>.Solve(dayFourInput, 4, "Printing Department");
 
 var dayFiveInput = await File.ReadAllTextAsync("./Input/DayFive.txt");
-AdventSolver<Cafeteria>.Solve(dayFiveInput, 4, "Cafeteria");
+AdventSolver<Cafeteria>.Solve(dayFiveInput, 5, "Cafeteria");
+
+var daySixInput = await File.ReadAllTextAsync("./Input/DaySix.txt");
+AdventSolver<TrashCompactor>.Solve(daySixInput, 6, "Trash Compactor");
+
+var daySevenInput = await File.ReadAllTextAsync("./Input/DaySeven.txt");
+AdventSolver<Laboratories>.Solve(daySevenInput, 7, "Laboratories");

AdventOfCode2025/TrashCompactor.cs

@@ -0,0 +1,34 @@
+using AdventOfCode2025.Utils;
+
+namespace AdventOfCode2025;
+
+public class TrashCompactor : IAdventSolution
+{
+    public AdventSolution Solve(string input)
+    {
+        var lines = input.SplitLines();
+        var operators = lines[^1].Split(' ',  StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+        var results = new ulong[operators.Length];
+        for (var i = 0; i < lines.Length - 1; i++)
+        {
+            var line = lines[i].Split(' ',  StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+            for (var j = 0; j < line.Length; j++)
+            {
+                if(i == 0)
+                    results[j] = ulong.Parse(line[j]);
+                else switch (operators[j])
+                {
+                    case "+":
+                        results[j] += ulong.Parse(line[j]);
+                        break;
+                    case "*":
+                        results[j] *= ulong.Parse(line[j]);
+                        break;
+                }
+            }
+        }
+        var sum = results.Aggregate(0UL, (current, result) => current + result);
+
+        return new AdventSolution(sum.ToString(),null);
+    }
+}