Dường như bạn đang tìm kiếm sản phẩm nói về quicksort có phải không? Dường như bạn đang muốn tìm chủ đề Sorts 8 Quick Sort đúng không? Nếu đúng như vậy thì mời bạn xem nó ngay tại đây.
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Hướng dẫn liên quan đến đề tài quicksort.
Tiến sĩ Rob Edwards từ Đại học Bang San Diego mô tả một cách rõ ràng thuật toán sắp xếp nhanh, thực sự là cách sắp xếp duy nhất bạn cần hoặc sử dụng.
Hình ảnh liên quan đếnchuyên mục Sorts 8 Quick Sort.
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Nội dung liên quan đến bài viết quicksort.
#Sorts #Quick #Sort.
[vid_tags].Sorts 8 Quick Sort.
quicksort.
Chúng tôi mong rằng những Kiến thức về chủ đề quicksort này sẽ mang lại kiến thức cho bạn. Chúng tôi chân thành .
s w o p
Superb explanation 🙏🙏
Rob your algorithms videos are top notch. Thank you.
This is the best video on quick sort! <3
What sorcery is this
How can we exactly count the number of comparisons? I establish a counter for 10000 number am I obtain 9999. If I consider the recursion -1 each time the numbers goes to 12K. Depending of the start or end or media election differs too.
This was the best way to learn it, I'm Mexican and my teacher is so bad, thanks to you teacher Rob
Best explanation of quicksort I have found so far
best explanation I saw so far
Thank you professor!! This is really clear and understandable, I now understand how partition work and how it works with pivot point.
Best explanation on YouTube. Thanks for this amazing content.
Thank you!
The comments here:
🤯 I was much more amazed by how he was able to disappear and then reappear in almost the same place!
Then I realised, this must be what recursion is…
I am learning!
am too lazy in writing a comment but this tutorial made me do that! THANKSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
how come the video was captured?.. he seemed writing in air, and he is facing opposite to us
# quick sort inplace
def quick_sort_inplace(arr):
if len(arr) <= 1:
return arr
else:
pivot = arr[-1] #consider last element as pivot
i,j = 0,0
while i < len(arr)-1:
# print(arr)
# print(arr[i], arr[j])
if arr[i] > pivot:
i = i+1
else:
arr[i],arr[j] = arr[j], arr[i]
j = j+1
i = i+1
# print(arr)
# print(arr[i], arr[j])
arr[j],arr[-1] = arr[-1], arr[j]
return quick_sort_inplace(arr[:j])+[arr[j]]+quick_sort_inplace(arr[j+1:])
l = [10,7,12,8,3,2,6]
l1 = [11,1,2,3,4,5,6,10,7,6,5,4,3,2,1,0,8,9,10]
print(quick_sort_inplace(l1))
So the swapping of 6 and 8 is not required. Just use the last element in the list. I think this is the inplace quick sort using Lomuto partition schema.
Using the last element as a pivot is necessarily not a good option if there is even a slight chance that the list could be (nearly) sorted. A good option for pivot selection is the median-of-three method in which you choose the median of the first, middle and last element of the list as your pivot. This leads to efficient behaviour for all inputs.
Clear. Concise. To the point. Will take a few watches but it was so clear and made so much more sense than what was taught in my algorithms class at school , lol.
4:08 if the numbers are randomly sorted then, any number in the list has the same probability of being in the middle of the sorted list… so you could just pick the number of the very right no? Edited: 8:38 lol he answered my question by the end of the video 🙂
beautiful explanation!
'crystal' clear.
That was a great explanation.
Inspired by your content I created a video with some animations and visuals. Quick Sort can be fun 😀
Check it out here https://youtu.be/2SRzQEOaLYw
This should be at the top of the search list.