Kevin Wayne is one of the authors of Algorithms 4th ed. by Robert Sedgewick and Kevin Wayne and he has a github repository called "algs4". Pearson sent github a DMCA notice for this repository and another. I'm not sure exactly what content he hosted in "algs4".
> This public repository contains the Java source code for the algorithms and clients in the textbook Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne. This is the official version—it is actively maintained and updated by the authors. [...]
