Day 22, with stack build system

[advent-of-code-16.git] / advent05.hs

diff --git a/advent05.hs b/advent05.hs
deleted file mode 100644 (file)
index c86b14c..0000000
--- a/advent05.hs
+++ /dev/null
@@ -1,44 +0,0 @@
-module Main(main) where
-
-import Data.Hash.MD5 (md5s, Str(..))
-import Data.List (isPrefixOf)
-import qualified Data.Map.Lazy as Map 
-
-type Password = Map.Map Integer Char
-
-input = "cxdnnyjw"
-
-main :: IO ()
-main = do 
-        part1 
-        part2
-
-
-part1 :: IO ()
-part1 = do 
-    print $ take 8 [h!!5 | h <- filter (interesting) $ md5sequence input 0]
-
-part2 :: IO ()
-part2 = do 
-    print $ Map.foldr (:) [] password
-    where interestingHashes = 
-            [(read [h!!5], h!!6) | 
-              h <- filter (interesting) (md5sequence input 0), 
-              h!!5 `elem` "01234567"]
-          password = findPassword Map.empty interestingHashes
-
-
-md5sequence :: String -> Integer -> [String]
-md5sequence key i = (md5s (Str (key ++ show i))) : (md5sequence key (i+1))
-
-interesting :: String -> Bool
-interesting hash = "00000" `isPrefixOf` hash
-
-dontReplace :: (Integer, Char) -> Password -> Password
-dontReplace (k, v) = Map.insertWith (\_ v -> v) k v
-
-findPassword :: Password -> [(Integer, Char)] -> Password
-findPassword p (c:cs)
-  | Map.size p == 8 = p
-  | otherwise = findPassword p' cs
-      where p' = dontReplace c p