JOI 2016 online contest will be held at 2016/02/14 09:30 JST(+UTC 09:00)
http://cms.ioi-jp.org/joi-ho-2016/index.html
It is an OI-style competition with full feedback. There will be 5 problems for 4 hours, sorted in difficuity order.
The problems are in Japanese — If you can't speak Japanese (like me), you should use translator.
In my opinion, the problem's difficulty will be comparable to that of COCI. (maybe bit harder?) These are the problemsets from the past 3 years.
http://www.ioi-jp.org/joi/2012/2013-ho/2013-ho.pdf
