added free Berkely Algorithms Book

free-programming-books.md

@@ -243,6 +243,7 @@ Original Source: [Free Programming books](http://stackoverflow.com/revisions/392
 #### Algorithms & Data Structures
 * [A Field Guide To Genetic Programming](http://dces.essex.ac.uk/staff/rpoli/gp-field-guide/toc.html)
 * [Algorithmic Graph Theory](http://code.google.com/p/graphbook/)
+* [Algorithms](http://algorithmics.lsi.upc.edu/docs/Dasgupta-Papadimitriou-Vazirani.pdf)
 * [Algorithms, 4th Edition](http://algs4.cs.princeton.edu/home/) - Robert Sedgewick and Kevin Wayne
 * [Algorithms and Automatic Computing Machines (1963)](https://archive.org/details/Algorithms_And_Automatic_Computing_Machines) - B. A. Trakhtenbrot
 * [Algorithms and Complexity](http://www.math.upenn.edu/~wilf/AlgoComp.pdf) (PDF)