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view paste/paste.14186 @ 4374:7db862205326
<oerjan> echo \'main = let p = 1 : zipWith (+) (map (*4) p) (map (sum . zipWith (*) p . reverse) (inits p)) in print $ p !! 1000\' >Test.hs
author | HackBot |
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date | Tue, 28 Jan 2014 07:49:28 +0000 |
parents | e037173e0012 |
children |
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import System.Environment import System.Process import System.Exit import Control.Monad import Control.Applicative import Data.List main = do r <- buildRegex . permuteArgs <$> getArgs (_, _, _, h) <- createProcess (proc "/hackenv/bin/log" [r]) exitWith <$> waitForProcess h where permuteArgs = permutations . join . map words buildRegex = oBrackets . intercalate ".*" . map (iBrackets . intercalate "|") iBrackets s = "(?:" ++ s ++ ")" oBrackets s = "^.*(?:" ++ s ++ ").*$"