Hello. It has proved to be not well known that there is currently going DCJ practice round! Everybody who is going to participate should take a part in it to familiarize with distributed environment! Here it is: https://codejam.withgoogle.com/codejam/contest/6264486/dashboard Info about it was written in a mail which looked like it doesn't contain any interesting info, so probably most users disregarded it and don't know about those rounds.