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学生对 Stanford University 提供的 Divide and Conquer, Sorting and Searching, and Randomized Algorithms 的评价和反馈

4.8
5,329 个评分

课程概述

The primary topics in this part of the specialization are: asymptotic ("Big-oh") notation, sorting and searching, divide and conquer (master method, integer and matrix multiplication, closest pair), and randomized algorithms (QuickSort, contraction algorithm for min cuts)....

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SN

Mar 25, 2020

I'm happy with this course because is a little challenging, not like other coursers where there are trivial answers and tests. I feel now much more confident with my fundamentals. Thank you Tim!

DT

May 26, 2020

Thank you for teaching me this course. I learned a lot of new things, including Divide-and-Conquer, MergeSort, QuickSort, and Randomization Algorithms, along with proof for their asymptotic runtime

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976 - Divide and Conquer, Sorting and Searching, and Randomized Algorithms 的 1000 个评论(共 1,019 个)

创建者 Michael L

Dec 19, 2018

This course is excellent...

创建者 Shouvik G

Aug 3, 2018

good.but, he is so fast!

创建者 Tejas P

Jun 14, 2018

well explained sir..!!!

创建者 Tabrez M

Apr 28, 2020

good explanation

创建者 aashirvad s

Nov 11, 2022

everything good

创建者 张之晗(ZhiHan Z

Aug 27, 2017

so challenging

创建者 Akshar K

Dec 1, 2022

good course

创建者 Shuvro D

Sep 10, 2021

good course

创建者 Thành N K

Jun 29, 2019

very hard

创建者 Prachi M

Jun 25, 2017

Excellent

创建者 E.Naveen K

Nov 29, 2016

Great

创建者 Parag K D

Apr 3, 2022

good

创建者 Pünhan Q

Mar 7, 2025

Yes

创建者 Sam H

Aug 17, 2025

This will be an odd review, since alot of the earlier reviews seem to place the rating on just a inital thought rather than actually finishing the courses. To begin with, the courses are HARD and I might have not enough pre-requisits. Tim seems to be incredible knowledgable and has spent a great deal preparing the course material. This should be alot more rigourosly statet, its more an pre-advanced than intermediate. And if this truly is an intermediate level, then god help us all... However, I'm not sure if it's a coursera thing or not, but I would have never in a million years have been able to finish theese courses. It's only thanks to beeing able to retake the quizzes a few time I could deduce some answers. Many questions almost feel like trick questions, where the lectures repeats a certain beavior of an algorithm and then the quiz asks for a very speficic edge case or a variation that is quite difficult to come up with unless you've read something similar to this before. The programming assignments are fine, except the first one in the first course, where it basically becomes a programming language issue rather than the algorithm issue. You still learn a lot if your try yourself for real, and even if you have aid you still will learn. Just don't ask an AI for the answers, that would be pointless. Im almost at the end of course 2 and right not quite demotivated on how difficult this topic is, atleast I got to know some algorithms. Maybe in a few centuries when im over 200 years and have an augmented brain I might understand what Tim is saying, until then, I have nothing but respect to the smart people in the world. Us grunts just have to keep working at understanding basic aritmathics.

创建者 Bianca D

Jan 26, 2019

Took me way more than 7 hours/week to go through course materials and complete the problem sets and programming assignments. Closer to 10. In general the estimates for how much time each assignment takes is way off (often claiming on the order of minutes, when the reality is for most students (myself included) it is likely on the order of hours).

That said, the programming assignments were challenging and fun (especially trying to do them in JavaScript), and I feel much more comfortable with recursion and Big-Oh.

The forums for the current session are not very active, but there are a lot of old posts from past offerings of the course, and I found that most of the time others had similar questions to me.

The textbook was helpful, but it pretty much has the same content as the lectures with maybe some extra practice and challenge problems. Unfortunately not all solutions to those problems are available, which can be very frustrating (I noticed at least one practice problem with no solution was used on the final exam, so that’s probably why...).

This course is a little more academic than practical in my opinion as a software engineer, but you have to start somewhere.

创建者 Peter C

Feb 12, 2017

I was glad to get exposure to famous algorithms through this class, but I don't feel like I really developed an intuition for reasoning about their runtime. The class was challenging, but mostly for the wrong reasons. I spent more time and energy pouring over the answers to tricky quizzes and having to implement algorithms exactly as described in the lecture notes rather than really truly learning. It also took me much longer than the 4-8 hours per week advertised to complete each week.

创建者 Aleksandr P

Nov 7, 2016

It would be nice to see more examples especially were we have too many formulas. I still confused with probability.

Also hadwritting isnt really helping. I am most of the time decoding scripts. In addition he is reading the formula at one moment and in around 3-4 seconds it appears on the screen. So I kind of listening him while trying to read what is happening on the screen. horrible experience.

创建者 Riqiang W

Jan 17, 2018

This is not very beginner-friendly course, and what made it worse is that all the videos are out of sync (I don't know why this problem has not been addressed for 5 years), and the instructor's speaking manner is not easy to follow for a foreigner. Also a lot of the subtitles are just wrong. Otherwise a great course, if you keep on it you can learn a lot.

创建者 伊洛

Dec 23, 2017

I do believe that feedbacks are very important during the learning section. Without feedbacks I would not understand whether I am doing ok or not. The Quiz and Homework would not handout the answer key and explanation after I have done. How am I suppose to be successful with the class if I don't understand which part I should strengthen.

创建者 Sheng B

Jan 28, 2019

This is a good course. I recommend everyone to take it. There are many details useful for you to learn. But it is not friendly. The words the professor used are not easy to follow for a non-native English, the way the exercises are designed is not reasonable. It could have been better.

创建者 Mike L

May 9, 2017

The professor is very good. However, pictures and graphics mean a thousand words. These lectures rely too much on words. It makes it how to visualize the concepts. Hope to see more pictures. Animation will be the best.

创建者 Joern K

Aug 9, 2018

Seems a bit dated, videos are reused from older courses and sometimes don't fit well together anymore. Content is great and lots of fun to work through.

创建者 Austin B

Feb 18, 2024

Very hard but its manageable. Make sure to watch videos multiple times to understand the concept.

创建者 Hardik A

Dec 22, 2018

Great course theory wise, but the programming problem is unrelated and gives too little practice

创建者 David A

Oct 19, 2020

Audio out of sync, sometimes material climbs in difficulty without the climb in explanation imo.