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<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
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 ++ ").*$"