feat: solved day 11 part 1 and part 2

11/PlutonianPebbles/Program.cs

@@ -1,5 +1,7 @@
 using System.Diagnostics;
 
+using PlutonianPebbles;
+
 if (args.Length is 0)
 {
   Console.WriteLine("Please provide a path to the input file.");
@@ -25,69 +27,9 @@ var stones = input
 
 var observer = Observer.Of(stones);
 
-var result = observer.Blink(25);
+var times = isPart2 ? 75 : 25;
+
+var result = observer.Blink(times);
 
 stopwatch.Stop();
-Console.WriteLine($". ({stopwatch.ElapsedMilliseconds}ms)");
-
-class Observer
-{
-  private readonly List<Stone> _stones;
-
-  private Observer(List<Stone> stones)
-  {
-    _stones = stones;
-  }
-
-  public static Observer Of(List<Stone> stones) => new(stones);
-
-  public string Blink(int times)
-  {
-    if (times < 1)
-    {
-      return string.Join(" ", _stones);
-    }
-    
-    return string.Empty;
-  }
-}
-
-record Stone
-{
-  private readonly string _engravedValue;
-
-  private Stone(string engravedValue)
-  {
-    _engravedValue = engravedValue;
-  }
-
-  public static Stone From(string engraving) => new(engraving);
-
-  public List<Stone> Transform()
-  {
-    if (_engravedValue is "0")
-    {
-      return [new Stone("1")];
-    }
-
-    var hasOddNumberOfDigits = _engravedValue.Length % 2 is not 0;
-
-    if (hasOddNumberOfDigits)
-    {
-      var engravedNumber = int.Parse(_engravedValue);
-      var newEngravedValue = engravedNumber * 2024;
-      return [new(newEngravedValue.ToString())];
-    }
-
-    var middleIndex = _engravedValue.Length / 2;
-    var leftDigits = _engravedValue[..middleIndex].TrimStart('0');
-    var rightDigits = _engravedValue[middleIndex..].TrimStart('0');
-
-    return [new(leftDigits), new(rightDigits)];
-  }
-
-  public override string ToString()
-  {
-    return _engravedValue;
-  }
-}
+Console.WriteLine($"The number of stones is {result}. ({stopwatch.ElapsedMilliseconds}ms)");