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IOI 2018 took place in Japan in September, 2018. More info is available on the official website.

Just happened   IOI 2018 in Japan

Croatian Open Competition in Informatics

The fourth contest will be held on Saturday, 16th December 2017, starting at 14:00 (GMT/UTC). Check out your local times at http://hsin.hr/coci/next_contest.html.

You may use Python, Pascal, C, C++ or Java as your programming language of choice.

The two relevant websites are: http://hsin.hr/coci/ - information about the contest http://evaluator.hsin.hr/ - contest system


Need more info?


Not sure where to go? Click here to view some basic information on how to learn programming and prepare to win a medal at the IOI.


A couple of volunteers maintain a separate page with stats about people who participated at the International Olympiad in Informatics.


The IOI publishes a journal every year, with original high-quality scientific papers related to education, contests and algorithms.