Jump to content

Recommended Posts

for a musical research project where i work with the sorting processes of different sorting algorithms (bubble-sort, heap-sort ...), i have to program such algorithms myself. the ide is that not only the end result of the algorithm is visible but also the constant changes (the mechansim). here the first: bubble-sort.

very simple and inelegant programmed - but the thing i need to have  :-)

 

bubble-sort:

https://en.wikipedia.org/wiki/Bubble_sort

 

have a look to different sorting algorithms:

 

 

greetings

andré

 


;;; bubble-sort -> with all GEN's to see the process of sorting
;;; end-test "until (equal (sort-asc alist) list)" very uncommon (and strange), 
;;; but most simple-stupid test to check the end, only okay for this kind of idea ("watching the process not the endresult")

(defun bubble-sort (seq)
  (let ((alist))
    (progn
      (setf alist (cond ((pitchp (car seq))
                         (pitch-to-midi seq))
                        ((lengthp (car seq))
                         (omn :length seq))
                        (t seq)))
      
      
      (setf alist (loop until (equal (sort-asc alist) list) 
                    with list = alist
                    append (loop 
                             for i from 0 to (- (length list) 2)
                             for j from 1 to (- (length list) 1)
                             when (> (nth i list) (nth j list))
                             collect (setf list (position-swap (list j i) list))
                             else do (setf list list))))
      
      (cond ((pitchp (car seq))
             (midi-to-pitch alist))
            (t alist)))))
 
  

(bubble-sort (rnd-order '(c5 e4 g3 b7)))
(bubble-sort (rnd-order '(t s e q h w)))
(bubble-sort '(1 6 334 2 6 4 111))

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

Terms of Use Privacy Policy