
"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 Advice to authors: (a) make sure you keep the copyright, and (b) do not publish with McGraw Hill."
Algorithms by Dasgupta, Papadimitriou and Vazirani:
http://www.amazon.com/Algorithms-Sanjoy-Dasgupta/dp/00735234...
And Elements of Programming Interviews by Aziz, Lee and Prakash:
http://www.amazon.com/Elements-Programming-Interviews-Inside...
Dead tree link for those interested: http://www.amazon.com/Algorithms-Sanjoy-Dasgupta/dp/00735234...
[1] https://i.imgur.com/HVeO7ek.png (CH 8, Algorithms - Sanjoy Dasgupta, Christos H. Papadimitriou, and Umesh V. Vazirani)
Also, this one [2] is quite good and concise. I believe better suited for someone who is not unfamiliar with classic algorithms (like you).
[1] http://algs4.cs.princeton.edu/home/
[2] http://www.amazon.com/Algorithms-Sanjoy-Dasgupta/dp/00735234...