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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 72d218235f
commit f23f22d71c
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26
Task/Sorting-algorithms-Bubble-sort/ACL2/sorting-algorithms-bubble-sort.acl2 Normal file
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(defun bubble (xs)
(if (endp (rest xs))
(mv nil xs)
(let ((x1 (first xs))
(x2 (second xs)))
(if (> x1 x2)
(mv-let (_ ys)
(bubble (cons x1 (rest (rest xs))))
(declare (ignore _))
(mv t (cons x2 ys)))
(mv-let (has-changed ys)
(bubble (rest xs))
(mv has-changed (cons x1 ys)))))))
(defun bsort-r (xs limit)
(declare (xargs :measure (nfix limit)))
(if (zp limit)
xs
(mv-let (has-changed ys)
(bubble xs)
(if has-changed
(bsort-r ys (1- limit))
ys))))
(defun bsort (xs)
(bsort-r xs (len xs)))