JingguoYao
Welcome! edit
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Your draft article, Wikipedia talk:Articles for creation/Slotted page edit
Hello JingguoYao. It has been over six months since you last edited your WP:AFC draft article submission, entitled "Slotted page".
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Thanks for your submission to Wikipedia, and happy editing. —Anne Delong (talk) 03:45, 5 January 2014 (UTC)
Your change to Quicksort edit
On 28 December 2013, you have changed the Quicksort article, noting: "The referred program is not a quicksort in a stick sense. No stable in-place quicksort is found." Why do you think it is not a quicksort or why do you think it is not stable? I think it is (both), at least it is a variant of quicksort (it uses insertion sort for small arrays), is that the reason you think it's not correct? ThomasMueller (talk) 13:39, 21 January 2014 (UTC)
> Because the time complexity of the referred algorithm is not O(n lg(n)).
Well, yes, the complexity of "in-place stable quicksort" is not O(n lg(n)), it is O(n lg(n) lg(n)). That's not so much different. It still is a quicksort variant, don't you agree? A sort algorithm isn't "quicksort" because it is O(n lg(n)), but because the base algorithm is quicksort. For example for Shellsort, the average case performance depends on the gap sequence. It wouldn't make sense to say one certain gap sequence isn't shell sort. The quicksort wikipedia page lists various variants of quicksort. Other articles on sorting algorithms also list various variants. Would you rather have a separate wikipedia page for each variant? Or only describe the base algorithm, and not those that are actually used in practice? ThomasMueller (talk) 07:43, 22 January 2014 (UTC)