Just happened

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

Just happened   IOI 2018 in Japan

IOI Journal - Contents

The journal titled "OLYMPIADS IN INFORMATICS" is published every year, starting with 2007. Only original high-quality scientific papers are part of the journal, and they are all free to access.

You can click on an edition to read it:
      Volume 12 (2018)
      Volume 11 (2017)
      Volume 10 (2016)
      Volume 9 (2015)
      Volume 8 (2014)
      Volume 7 (2013)
      Volume 6 (2012)
      Volume 5 (2011)
      Volume 4 (2010)
      Volume 3 (2009)
      Volume 2 (2008)
      Volume 1 (2007)

A couple of special editions have also been published:
      Volume 11 - Special Edition (2017)
      Volume 10 - Special Edition (2016)


The content links above contain the journal volumes.
Alternatively, you can find an index of all papers as separate files here.

Need more info?

Beginners

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.

Statistics

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

Journal

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