Removed needless directory

[advent-of-code-16.git] / adventofcode16 / app / advent19.hs

diff --git a/adventofcode16/app/advent19.hs b/adventofcode16/app/advent19.hs
deleted file mode 100644 (file)
index 009a07c..0000000
--- a/adventofcode16/app/advent19.hs
+++ /dev/null
@@ -1,37 +0,0 @@
-module Main(main) where
-
-import Prelude hiding (length, take, drop)
-import Data.Sequence
-
--- input = 5 
-input = 3012210 
-
-main :: IO ()
-main = do 
-    part1 
-    part2
-
-part1 :: IO ()
-part1 = print $ 2 * (input - 2 ^ (toInteger (floor $ logBase 2 (fromIntegral input)))) + 1
-
-part2 :: IO ()
-part2 = print $ flip index 0 $ presentSteps initial
-
-presentSteps :: Seq Int -> Seq Int
-presentSteps elves 
-    | isFinished elves = elves
-    | otherwise = presentSteps $ next elves
-
-initial :: Seq Int
-initial = fromList [1..input] 
-
-isFinished :: Seq Int -> Bool
-isFinished elves = length elves == 1
-
-next :: Seq Int -> Seq Int
-next elves = prefix >< (midfix |> suffix)
-    where 
-        target = length elves `quot` 2
-        prefix = drop 1 $ take target elves
-        midfix = drop (target+1) elves
-        suffix = index elves 0