Coding Door is now back. http://codingdoor.com/

Sorry for the inconvenience.

I have a simple request for some volunteer who can update OPC Calendar via his gmail account in the next up-coming 3 months, as I will be having my last year exams at school.

I've updated the known schedules for most sites but some don't publish dates except every month (like Codeforces).

But for the news page, all members can post news if they wishes.

Thanks.