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Learner Reviews & Feedback for Unordered Data Structures by University of Illinois at Urbana-Champaign

4.7
stars
535 ratings

About the Course

The Unordered Data Structures course covers the data structures and algorithms needed to implement hash tables, disjoint sets and graphs. These fundamental data structures are useful for unordered data. For example, a hash table provides immediate access to data indexed by an arbitrary key value, that could be a number (such as a memory address for cached memory), a URL (such as for a web cache) or a dictionary. Graphs are used to represent relationships between items, and this course covers several different data structures for representing graphs and several different algorithms for traversing graphs, including finding the shortest route from one node to another node. These graph algorithms will also depend on another concept called disjoint sets, so this course will also cover its data structure and associated algorithms....

Top reviews

YC

May 6, 2022

Great Teacher, although there are still a lot that I need to learn on my own(I come from non-CS background), after hereing these lectures, I feel that I have already learnt a ton.

AF

Jul 16, 2020

This course had good coverage on hashing, disjoint sets, graphs. This course will improve coding skills.

I'm happy with material, coding practices, quiz and projects.

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101 - 110 of 110 Reviews for Unordered Data Structures

By Claire L

•

May 1, 2021

the tempo of the lecture is not very well, especially for the week 4 courses. the video should have presented the lecture slides ALL the time so that people have enough time to read through the content, instead of switching to the full screen of the prof. immediately after the prof. read through the lines in a super fast speed. it is not very friendly for people who aren't familar with those algorithms. overall, the learning experience is not as good as the previous two courses.

By Jeffrey C

•

Feb 19, 2022

A decent course if you wish to review previously learned concepts. Not good for those learning for the first time. The actual programming exercises were very simple, as they provided most of the code for you. I would have prefered a more hands-on apporach where they guided you to bulding the structures yourself. Honestly, would not reccomend taking this course unless you have to.

By Sang L

•

Jan 9, 2021

So many errors in the video which distract students from learning the material. Makes me wonder about the quality of the online MS program by UIUC

By Zhanzhi J

•

Apr 13, 2020

The concept of the mentioned data structures are clearly delivered. But there is a gap between concepts and implement of C++ codes.

By Aderlly L L

•

Apr 27, 2020

More theory discussed along the course but there are not many examples and the difficulty increases a lot.

By Ankith M

•

Nov 12, 2020

Exceptional course! Lots of theory involved!.

Week 4 challenge seems to have been designed in a rush

By Changlin J

•

Feb 4, 2021

a lot of typo and error on the video

By Robert M d V

•

Apr 18, 2020

The lectures were only mildly informative and the assignments give too much hand holding to even be considered a challenge at all

I feel the course has failed to effectively provide the students the rigor required to fully utilize and understand the power of data structures. Also, some real world examples on applications of data structures would go a longer way than simply academic ones

By James K

•

Aug 3, 2021

You are on your own. You will be left to figure out everything on your own. The staff completely abandoned the students in this course. Dicussion questions have been left unanswered for months. I am lead to believe that this is how they will treat their students in the online MCS or MCS-DS program. I am happy I did not have any intention of applying for the program when I enrolled in this course.

Nothing in my life has changed after I finished course. However, I have more knowledge about C++ data structures. I will most likely never apply any of the skills I picked up in this course and you should not expect to do the same.

By Max B

•

Dec 5, 2022

Videos: Explaining the concepts with the help of poor visual tools without showing any practical coding examples. This makes the exams uneccessary difficult to solve.

Normal exam:

Time spent trying to understand the exam due to complex questions and never-seen algorithms: 5h.

Time spent acually solving the challenges when finally understanding the task: 10 min.

Complete waste of time this course.