Challenge Overview
We have received several reports of the Arena bug that looks like this. Under certain conditions, when you open some code from division/room summary, you may get an error message like 'You can only view one problem/code at a time'. Then it is possible that Arena stops operating properly, so it needs to be restarted.
For this contest, we'd like to fix problem, so the Arena can function properly without restart.
see detail requirements in wiki
Final Submission Guidelines
see detail requirements in wiki