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monzou/encode.hs

Created June 17, 2012 02:34
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encode.hs
import Data.Char
main = print $ decode 3 $ encode 3 "hello, world !"
encode :: Int -> String -> String
encode offset msg = map (\c -> chr $ ord c + offset) msg
decode :: Int -> String -> String
decode shift msg = encode (negate shift) msg
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