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Stanford University

Shortest Paths Revisited, NP-Complete Problems and What To Do About Them

The primary topics in this part of the specialization are: shortest paths (Bellman-Ford, Floyd-Warshall, Johnson), NP-completeness and what it means for the algorithm designer, and strategies for coping with computationally intractable problems (analysis of heuristics, local search).

Status: Algorithms
Status: Operations Research
IntermediateCourse13 hours

Featured reviews

TL

5.0Reviewed Mar 5, 2018

Thanks a lot. It is time consuming, need a lot of thinking and practising to finish the homework. And it is worth taking. After this, we can go deep into cs.

CK

5.0Reviewed Jul 30, 2025

The whole Algorithm course is quite informative. Worthy to review the entire series of videos several times.

AS

5.0Reviewed Aug 23, 2018

This is the most challenging course in this specialization. Assignments as well as test questions require good amount of thinking. One of the best courses I did on Coursera.

KA

5.0Reviewed Dec 14, 2019

Great course, great explanation from instructor. I loved how Tim Roughgarden explains algorithms. Course Load was just right for me. Great experience!

SA

5.0Reviewed Mar 16, 2020

A really well-crafted specialization. Has something for everyone from a beginner to an advanced Computer Science student.

SW

5.0Reviewed Aug 10, 2020

Excellent course! The lectures provide clear and rigorous explanations, and the coding exercises are appropriately challenging.

HP

5.0Reviewed May 6, 2020

learn a lot about algorithmic complexity class and lot's of such a beautiful algorithm. Thank you sir for sharing your knowledge with us.

YW

5.0Reviewed Mar 4, 2018

unlike previous 3 coursessome of course 4's quiz problems are really difficult and not sure how to approach...

LC

5.0Reviewed May 2, 2018

Fantastic course by a fantastic Teacher, Prof. Roughgarden manages to turn the dry subject of Algorithms into a hot sexy one!!

BG

5.0Reviewed Jul 7, 2018

Excellent course! Bravo to the teacher for the commitment provided in this course. Kind regards.

YA

5.0Reviewed Feb 26, 2021

Wonderful lectures and programming exercises. Professor Roughgarden explains difficult concepts in the simplest way possible.

ML

5.0Reviewed Nov 13, 2019

very interesting course in Algorithms Specialization.It is sufficient to arouse interest in studying advance algorithm.Thank you for your teaching, Professor Tim.

All reviews

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Yusuke Urakami
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