Move scala codebase in a directory on its own

scalaAoC/2015/day2.hs

@@ -0,0 +1,47 @@
+import Data.List.Split
+
+computeSides :: [Int] -> [Int]
+computeSides dims = [l * w, w * h, h * l]
+  -- Not really safe...
+  where l = dims !! 0
+        w = dims !! 1
+        h = dims !! 2
+
+computeWrapping :: [Int] -> Int
+computeWrapping dims = sum (map (* 2) sides)
+  where sides = computeSides dims
+
+computeSlack :: [Int] -> Int
+computeSlack dims = minimum sides
+  where sides = computeSides dims
+
+computeRibbonWrap :: [Int] -> Int
+computeRibbonWrap dims = (sum dims - maximum dims) * 2
+
+computeRibbonBow :: [Int] -> Int
+computeRibbonBow dims = product dims
+
+parseDims :: String -> [Int]
+parseDims input = map read (splitOn "x" input)
+
+part1computation :: [Int] -> Int
+part1computation dims = computeWrapping dims + computeSlack dims
+
+part2computation :: [Int] -> Int
+part2computation dims = computeRibbonWrap dims + computeRibbonBow dims
+
+day2 :: ([Int] -> Int) -> String -> Int
+day2 fn input = sum paper
+  where entries = lines input
+        dims = map parseDims entries
+        paper = map fn dims
+
+main :: IO ()
+main = do
+  input <- getContents
+  putStr "Part1: "
+  print (day2 part1computation input)
+  putStrLn ""
+  putStr "Part2: "
+  print (day2 part2computation input)
+  putStrLn ""