tools/hashTest.hs
author Wuzzy <Wuzzy2@mail.ru>
Mon, 13 Nov 2017 22:14:45 +0100
changeset 12841 8610462e3d33
parent 9464 901e363d5837
permissions -rw-r--r--
Remove 2 unused number tags in Construction Mode GUI These numbers are shown aside the power tag, but the numbers never change. They don't serve any purpose and are just visual clutter and annoying, since they partially overlap. They are probably a leftover from copying code over from other scripts. With this changeset, only the power and turn time are left visible, as it is supposed to.
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module Test where
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import Control.Monad
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import Data.Word
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import qualified Data.IntSet as IS
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data OP = Sum
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        | Mul
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        | Sub
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    deriving Show
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genOps :: Int -> [[OP]]
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genOps 1 = [[Sum], [Mul], [Sub]]
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genOps n = [a : as | a <- [Sum, Mul, Sub], as <- genOps (n - 1)]
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genPos :: Int -> Int -> [[Int]]
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genPos m 1 = map (:[]) [-m..m - 1]
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genPos m n = [a : as | a <- [-m..m - 1], as <- genPos m (n - 1)]
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hash :: [Int] -> [OP] -> [Int] -> Int
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hash poss op s = foldl applyOp s' (zip ss op)
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    where
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        applyOp v (n, Sum) = (v + n) `mod` 256
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        applyOp v (n, Mul) = (v * n) `mod` 256
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        applyOp v (n, Sub) = (v - n) `mod` 256
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        (s' : ss) = map (\p -> if p >= 0 then s !! p else s !! (l + p)) poss
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        l = length s
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test = do
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    a <- liftM lines getContents
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    let w = minimum $ map length a
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    let opsNum = 4
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    let opsList = genOps (opsNum - 1)
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    let posList = genPos w opsNum
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    let target = length a
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    let wordsList = map (map fromEnum) a
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    let hashedSize = IS.size . IS.fromList
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    print $ length a
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    putStrLn . unlines . map show $ filter (\l -> fst l == length a) $ [(hs, (p, o)) | p <- posList, o <- opsList, let hs = hashedSize . map (hash p o) $ wordsList]
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didIunderstand' = do
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    a <- liftM lines getContents
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    print $ length a
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    print . IS.size . IS.fromList . map (testHash . map fromEnum) $ a
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    where
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        testHash s = let l = length s in (
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                         (s !! (l - 2) * s !! 1) + s !! (l - 1) - s !! 0
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                         ) `mod` 256