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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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19
Task/Sorting-algorithms-Heapsort/PicoLisp/sorting-algorithms-heapsort.l Normal file
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(de heapSort (A Cnt)
(let Cnt (length A)
(for (Start (/ Cnt 2) (gt0 Start) (dec Start))
(siftDown A Start (inc Cnt)) )
(for (End Cnt (> End 1) (dec End))
(xchg (nth A End) A)
(siftDown A 1 End) ) )
A )
(de siftDown (A Start End)
(use Child
(for (Root Start (> End (setq Child (* 2 Root))))
(and
(> End (inc Child))
(> (get A (inc Child)) (get A Child))
(inc 'Child) )
(NIL (> (get A Child) (get A Root)))
(xchg (nth A Root) (nth A Child))
(setq Root Child) ) ) )