ICPC Challenge will start today. ICPC Challenge is an additional contest for ICPC finalists where they have two weeks to solve a single game problem. After that, a double-elimination tournament will be held between the team's submissions. The results will be announced at the finals. The teams who take the top places will be awarded prizes.
Solutions in C++ and Java are accepted. Unfortunately, participating out of competition is not permitted. However, statements are available to everyone. ACM recently offered an open contest based on the last year's problem, but it is already over.