From 42e1a278060a9b03974b036d4e4fbe399ac5000e Mon Sep 17 00:00:00 2001
From: Parnic <github@parnic.com>
Date: Thu, 14 Dec 2023 23:05:46 -0600
Subject: [PATCH] Improve day 14 part 2 runtime

I realized I was looking for the third occurrence when the second works just as well.
---
 src/14.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/14.cs b/src/14.cs
index b0a7f82..32329e1 100644
--- a/src/14.cs
+++ b/src/14.cs
@@ -164,10 +164,10 @@ internal class Day14 : Day
             Tilt(part2, eastDir);
 
             var result = Stringify(part2);
-            if (seen.Count(g => g == result) == 2)
+            if (seen.Any(g => g == result))
             {
                 int periodStart = seen.FindIndex(g => g == result);
-                int periodLen = seen.Skip(periodStart + 1).ToList().FindIndex(g => g == result) + 1;
+                int periodLen = seen.Count - periodStart;
                 loopCycle = ((1000000000L - periodStart) % periodLen) + periodStart;
                 break;
             }