DPV was a really good 'free' undergrad algorithms text until the publisher demanded the author's stop giving it away https://people.eecs.berkeley.edu/~christos/

DPV was a really good 'free' undergrad algorithms text until the publisher demanded the author's stop giving it away https://people.eecs.berkeley.edu/~christos/ https://people.eecs.berkeley.edu/~christos/ "Algorithms with Sanjoy Dasgupta (Christos Papadimitriou) and Umesh Vazirani, McGraw-Hill 2006. Note: until recently, we had here the pdf of an early version of this book, for the convenience of the students. Unfortunately, our publisher demanded that we delete it. Advice to authors: (a) make sure you keep the copyright, and (b) do not publish with McGraw Hill."