X-Git-Url: https://git.njae.me.uk/?a=blobdiff_plain;f=advent07%2FMainWithCase.hs;fp=advent07%2FMainWithCase.hs;h=e5a181fd6217a43804e9233f71cdd6eb1c99d7fe;hb=c4136e04dca618af23f2bbc30dc1045afb8a6bac;hp=36b4cd86a5178b4db55be5da2de60862907cc016;hpb=3e6691d64d99bf6a3c5ebbf10372d1ea4b864c9e;p=advent-of-code-23.git

diff --git a/advent07/MainWithCase.hs b/advent07/MainWithCase.hs
index 36b4cd8..e5a181f 100644
--- a/advent07/MainWithCase.hs
+++ b/advent07/MainWithCase.hs
@@ -40,10 +40,7 @@ enJoker (Hand cards bid) = Hand jCards bid
   where jCards = replace Jack Joker cards
 
 replace :: Eq a => a -> a -> [a] -> [a]
-replace _ _ [] = []
-replace f t (x:xs) 
-  | x == f = t : replace f t xs
-  | otherwise = x : replace f t xs
+replace f t = fmap (\x -> if x == f then t else x)
 
 classify :: Hand -> ClassifiedHand
 classify (Hand cards bid) =