aparler/RosettaCodeData
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Ingy döt Net 2013-06-05 21:47:54 +00:00
parent 1f1ad49427
commit 6f050a029e
2496 changed files with 37609 additions and 3031 deletions
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2
Task/Remove-duplicate-elements/Racket/remove-duplicate-elements-1.rkt Normal file
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-> (remove-duplicates '(2 1 3 2.0 a 4 5 b 4 3 a 7 1 3 x 2))
'(2 1 3 2.0 a 4 5 b 7 x)

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Task/Remove-duplicate-elements/Racket/remove-duplicate-elements-2.rkt Normal file
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(define (unique/hash lst)
(hash-keys (for/hash ([x (in-list lst)]) (values x #t))))

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Task/Remove-duplicate-elements/Racket/remove-duplicate-elements-3.rkt Normal file
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(define unique/set (compose1 set->list list->set))

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Task/Remove-duplicate-elements/Racket/remove-duplicate-elements-4.rkt Normal file
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(define (unique seq #:same-test [same? equal?])
(for/fold ([res '()])
([x seq] #:unless (memf (curry same? x) res))
(cons x res)))