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flazz/sux.hs

Created July 26, 2012 17:42
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sux.hs
module Sux where
import Data.List
sux :: Eq a => [a] -> [[a]]
sux (a:b:[]) = [[a,b], [b,a]]
sux ns = do
x <- ns
let xs = delete x ns
xs' <- sux xs
return (x:xs')
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