feat: solve day 5 part 1

05/PrintQueue/Program.cs

@@ -1,5 +1,7 @@
 using System.Diagnostics;
 
+using PrintQueue;
+
 if (args.Length is 0)
 {
   Console.WriteLine("Please provide a path to the input file.");
@@ -13,14 +15,21 @@ if (File.Exists(args[0]) is false)
 }
 
 var isPart2 = args.Length is 2 && args[1] is "part2";
-var input = await File.ReadAllLinesAsync(args[0]);
+var input = await File.ReadAllTextAsync(args[0]);
 
 var stopwatch = new Stopwatch();
 stopwatch.Start();
 
-// TODO: Perform work here
-  
-stopwatch.Stop();
+var parser = new PuzzleParser();
 
-// TODO: Print results
-Console.WriteLine($". ({stopwatch.ElapsedMilliseconds}ms)");
+var parseResult = parser.Parse(input);
+
+var validator = new UpdateValidator(parseResult.Rules);
+
+var result = parseResult.Updates
+  .Where(u => validator.Validate(u))
+  .Select(u => u.GetMiddlePage())
+  .Sum();
+
+stopwatch.Stop();
+Console.WriteLine($"The sum of the page numbers is {result}. ({stopwatch.ElapsedMilliseconds}ms)");