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Permutations: Difference between revisions
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→{{header|Haskell}}: Fixed type definition
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m (→{{header|Haskell}}: Fixed type definition) |
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Line 1,467:
<lang haskell>import Data.List (delete)
permutations :: Eq a
permutations [] = [[]]
permutations xs = [ x:ys | x <- xs, ys <- permutations (delete x xs)]</lang>
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