slightly more clean day 15

mstksg · Dec 15, 2023 · 91046e5 · 91046e5
1 parent f3f7b5c
commit 91046e5
Showing 1 changed file with 1 addition and 4 deletions.
diff --git a/src/AOC/Challenge/Day15.hs b/src/AOC/Challenge/Day15.hs
@@ -119,11 +119,8 @@ initBox label n = B (NEM.singleton label (BN n Nothing Nothing)) label label
 traceBox :: Box -> [(String, Int)]
 traceBox B {..} = go _bFirst
   where
-    go x = case _bnAfter of
-      Nothing -> [out]
-      Just y -> out : go y
+    go x = (x, _bnValue) : maybe [] go _bnAfter
       where
-        out = (x, _bnValue)
         BN {..} = _bMap NEM.! x
 
 day15b :: [(String, Act)] :~> Int