finish day three

three.hs

@@ -1,3 +1,4 @@
+import           Data.Char
 
 splitlist :: [a] -> ([a],[a])
 splitlist list = (take n list,drop n list)
@@ -8,8 +9,14 @@ inBoth (first,second) = do
   inFirst <- first
   if (inFirst `elem` second) then return inFirst else []
 
-
+toPriority :: Char -> Int
+toPriority char = ordNum - (substract ordNum)
+  where
+    ordNum = (ord char)
+    substract n
+      | n < 97 = 38
+      | otherwise = 96
 
 main = do
   input <- readFile "three-input.txt"
-  print $ map ( inBoth . splitlist ) $ lines input
+  print $sum $  map (toPriority . head . inBoth . splitlist ) $ lines input

three2.hs

@@ -0,0 +1,22 @@
+import           Data.Char
+import           Data.List.Split
+
+
+inAll :: [String] -> [Char]
+inAll [first,second,third] = do
+  eachChar <- first
+  if (eachChar `elem` second && eachChar `elem` third) then return eachChar else []
+
+
+toPriority :: Char -> Int
+toPriority char = ordNum - (substract ordNum)
+  where
+    ordNum = (ord char)
+    substract n
+      | n < 97 = 38
+      | otherwise = 96
+
+main = do
+  input <- readFile "three-input.txt"
+  print $sum $  map (toPriority . head . inAll ) $ chunksOf 3 $ lines input
+  --print $map ( inAll ) $ chunksOf 3 $ lines input