completed part 1

AdventOfCode2025/AdventOfCode2025.csproj

@@ -32,6 +32,10 @@
       <Content Include="Input\DayFive.txt">
         <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       </Content>
+      <None Remove="Input\DaySix.txt" />
+      <Content Include="Input\DaySix.txt">
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      </Content>
     </ItemGroup>
 
 </Project>

AdventOfCode2025/Program.cs

@@ -15,4 +15,7 @@ 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");

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);
+    }
+}