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Ingy döt Net 2013-04-11 01:07:29 -07:00
parent b83f433714
commit 68f8f3e56b
14735 changed files with 178959 additions and 0 deletions
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17
Task/Sorting-algorithms-Quicksort/ACL2/sorting-algorithms-quicksort-1.acl2 Normal file
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(defun partition (p xs)
(if (endp xs)
(mv nil nil)
(mv-let (less more)
(partition p (rest xs))
(if (< (first xs) p)
(mv (cons (first xs) less) more)
(mv less (cons (first xs) more))))))
(defun qsort (xs)
(if (endp xs)
nil
(mv-let (less more)
(partition (first xs) (rest xs))
(append (qsort less)
(list (first xs))
(qsort more)))))

2
Task/Sorting-algorithms-Quicksort/ACL2/sorting-algorithms-quicksort-2.acl2 Normal file
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> (qsort '(8 6 7 5 3 0 9))
(0 3 5 6 7 8 9)