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buchgr/gist:3976707

Created October 29, 2012 21:39
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gistfile1.txt
{-WETT-}
perms :: [Char] -> [[Char]]
perms [] = [""]
perms xs = reverse $ sort $ nub [x:y | x <- xs, y <- perms $ delete x xs]
{-TTEW-}
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