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Learner Reviews & Feedback for Divide and Conquer, Sorting and Searching, and Randomized Algorithms by Stanford University

5,016 ratings

About the Course

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)....

Top reviews


Sep 13, 2018

Well researched. Topics covered well, with walkthrough for exam.le cases for each new introduced algorithm. Great experience, learned a lot of important algorithms and algorithmic thinking practices.


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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126 - 150 of 955 Reviews for Divide and Conquer, Sorting and Searching, and Randomized Algorithms

By Ali İ E

Jan 27, 2022

I strongly recommend this course. You can learn a lot from this course. Here are some tips to get the most out of it:

1) Implement each algorithm, that professor talks about, using your favorite programming language.

2) Study each topic using the suggested book (i.e. Algorithms Illuminated (Part 1)).

By Sonali P

Aug 10, 2018

An awesome course for learning algorithms in Divide and Conquer Strategy. The lecturer's teaching and lecture content both are world class. The assignments too were worth challenging and confidence boasting. Nice one in case someone needs to grasp at deeper level, the algorithm design and analysis.

By Anton K

Feb 10, 2018

This is by far the best course I've ever seen on coursera. I actually had a major in discrete mathematics and algorithms at college, so I had though I only needed to refresh. But I was actually able to learn quite a lot new things and realized that some of the concepts I've had wrong all this time!

By Neelabh S

Apr 2, 2020

Great course! Programming assignments are designed very well. Evaluative components properly judge the learning outcome of the course.

As far as the course is concerned, the explanation of concepts is great. Every topic starts from fundamentals which makes it easy to connect and understand.

By Don S

Dec 3, 2020

A very interesting and abstract approach to teaching algorithms. Given the course is language agnostic, I chose C# as my language for doing the programming assignments in order to upskill in C# for my new job. This course has also helped me enhance my understanding of key algorithms.

By An N

Feb 26, 2018

It can be difficult for beginners. But you definitely learn alot after if you can make it through the end. There are typed pdf lectures included, but recommend to take notes and have the pdf up when watching the lectures because the instructor's handwriting is not very easy to read.

By Seanita T

Sep 16, 2019

The ML class was a great prep for this one. I like that this class is taught in Python vs Matlab/Octave. Prof. Ng is excellent as always. Each course solidifies my understanding while also reminding me there is much still to learn. It's challenging but I am thoroughly enjoying it.

By Ke " L

Jun 9, 2019

I have learned a lot about important concepts about algorithms through this course, to name a few, divide and conquer (recursion), randomized algorithms, and introduction to graph. It took me about 15-20 hours a week to learn the knowledge thoroughly and converted them into codes.

By Libor S

Apr 24, 2017

Course is brilliant, but at least for me the completion took in average 3 times more effort than expected by authors (4-8 hrs/week). Of course this is mostly due to my low experience with programming, but still, might be relevant for other learners, who don!t have much experience.

By Andy

Jul 23, 2017

An excellent course for beginners looking to grasp fundamental concepts of algorithms!! Professor Roughgarden was brilliantly lucid in his explanations and the assignments and evaluations were helpful in assimilating the concepts covered. It was pleasure to take this course.

By Luke K

Dec 26, 2020

This course will give you a very precise understanding of algorithms and their mathematical proofs. And it introduces some cool algorithms and covers them in detail mathematically, so it will be very enjoyable to learners too who already took an algorithm class before.

By Rohit S

Apr 17, 2019

He is the perfect and awesome Guru, who understands how to connect the dots. I found the right place to understand this subject in the right direction and interpretation. It's truth unfolded. Thanks a lot Sir for mentoring and 'illuminating' students around the corner.

By Rajat G

Jan 14, 2018

Amazing course!

The course content is very good. It covers several important algorithms related to Divide and Conquer approach. The teacher is very good and the assignments and quiz also challenges you and make sure that you have viewed the lectures thoroughly.

Thanks :)

By Qianli S

May 31, 2017

The course material is very comprehensive. Both quiz components and programming components are not easy. The instructor, Prof Tim Roughgarden, has done a great job explaining the nuances in the course material. I may need to review the materials sometime down the road.

By Stephen D

Aug 20, 2021

I loved how hands on the assignments are. It gives you the theory of what you need to know and implement, but tosses you into the deep end which forces you to know the algorithm on a very deep level. You work hard for it, but you end up learning a ton in the process!

By Brian Y

Jul 27, 2021

I really enjoyed learning from this course. Professor Roughgarden is by far the best computer science teacher I have ever learned from. Even as a high schooler, his teachings were vary understandable and easy to follow. The assignments were engaging and challenging.

By Karthi V E

Dec 23, 2020

Came into this course looking to develop some intuition for computational complexity of simple algorithms, being from a non computer science background. The course was rigorous enough for someone with a good math background but lacking any knowledge about algorithms.

By Ziang T

Jul 19, 2021

Nice CS fundamental course with clear logical reasoning and proof. The instructor is good at explaining mathematical proofs step-by-step, making the course materials much easier to understand. Highly recommend it to people wishing to learn about how algorithms work!

By John A

Oct 7, 2019

Course was amazing - the one thing is I found the problem sets to typically be very difficult. Would be nice to have a similar set of problems + solutions available to better understand after we get something wrong.

Thank you for the time you put into this course.

By Niko G

Aug 16, 2018

As an Electrical Engineer, until completing this course, I felt a little uncomfortable talking with computer scientists about algorithms, although I have been programming for about 20 years. Now I feel comfortable discussing algorithms. Really enjoyed the course.

By Priyam S

Dec 14, 2019

It is an awesome experience.Most likely the programming assignment gives me a boost.And the Karger's Algorithm problem of minimum cut was nice.It really take a lot of tie to solve and think.But finally I am able to pass it .After all a very good experience.

By Eric L

Nov 13, 2016

Professor Roughgarden makes algorithms cool. With his passion for the topic you can't help but get excited about it too. I feel like I got a deep understanding of the topics covered versus just learning a recipe to sort an array. Looking forward to more.

By Larsen C

Apr 7, 2020

This course really helped me understand how Divide and Conquer Algorithms work. I liked the programming assignments since they really force you to program it on your own and that is the best way to really master algorithms. It was so helpful, thank you!

By Brande G

Jul 3, 2018

This course really is something else. It enhances the way you think, developes new thinking of old problems. The professor knows how to explain certain things that look more complicated and makes it look easier to the uninitiated persons in this course

By Lluis T

Dec 15, 2017

Great course! It was very well planned an oriented for experimented programmers that need that pinch of salt needed to get the best in their codes. I strongly recommend to use TDD in the development of the programming practices.

A resume?: it's a MUST.