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Much inadvertent wisdom in this: If you're a student, you will (usually) learn more from trying to solve a problem and failing than by reading the answer.
In case you didn't make the connection, this material is by the professor who wrote the recently posted article: "Getting into a PhD program with a low GPA". His undergraduate GPA was a 2.4/4.0, according to his website.

http://news.ycombinator.com/item?id=1072923

Good link - I had Jeff for algorithms a couple years ago and he's a dedicated and passionate teacher.
+1
To wit, I also had Jeff for algorithms a couple years ago and he is indeed a dedicated and passionate teacher. But thank you for your support, fellow HNers!
I second that, I had him in '05 and specifically waited to take the class with him as the teacher. Was well worth it, he brings a sense of humor and style to teaching that turned an otherwise difficult class into an absolute joy.
I had Jeff his first semester at UIUC. He received a standing ovation the last day of class. He's _that_ good.
"Am I writing a textbook? No. All textbooks suck. (Partly that's because of the unethical rapacious profitable business practices of (most) textbook publishers—these notes will always be freely available."

excellent!

What is a good book for learning about this subject? Knuth's? Any other recommendations?
_Introduction to Algorithms_ (aka "CLRS") http://www.amazon.com/Introduction-Algorithms-Third-Thomas-C...
CLRS is the classic textbook for Algorithms... For some topics Klienberg and Tardos is good, I will suggest to read the CLRS text and keep K&T for topics you want to read more on, also the K&T problems are much harder (usually) than CLRS.
I'll second Intro to Algorithms, which has been mentioned. It's what I used in my algorithms class and it's quite comprehensive. (It will also take you a while to get through.)

I've also heard The Algorithm Design Manual recommended, although I haven't read it and don't own a copy. http://www.amazon.com/Algorithm-Design-Manual-Steven-Skiena/...