IOI 2025 - Bolivia

The next Olympiad will be hosted by Bolivia from July 27 to August 3. You can visit the event website, or scroll down to read about the IOI organization.

WebsiteSyllabus

News

European Junior Olympiad in Informatics 2025
 Dear all, The European Junior Olympiad in Informatics 2025 (https://2025.ejoi.org/ [https://2025.ejoi.org/]) will take place in Shumen, Bulgaria,...

Baltic Olympiad in Informatics 2025
 We are excited to announce that the Baltic Olympiad in Informatics (BOI) 2025 will take place in Toruń, Poland, from April 24 to April 29.

IIOT 2025 International Final
 Dear IOI Community, On behalf of the organizing committee of the International Informatics Olympiad in Teams (IIOT) 2025 International Final, I...

JOI Spring Training Contest 2025
 Hello Everyone! Japanese Olympiad in Informatics Spring Training Online Contest 2025will be held from March 21 to March 24, 2025.

Call for DSA nominations
 Dear colleagues, As you are likely aware, the IOI sometimes recognises individuals for their contribution to the IOI through Distinguished Service...

Events

IOI 2022 took place in Indonesia
 Several other Olympiads have also been scheduled, including IOI 2023 in Hungary and IOI 2024 in Egypt.

IOI 2023 was held in Hungary
 The Olympiad took place in Szeged between August 28th and September 4th.

IOI 2024 was hosted by Egypt
 IOI 2024 was organized by Egypt, from September 1-8. Visit the official website of the event to learn more.

Bolivia will host IOI 2025
 Bolivia will host IOI 2025. You can visit the official website for more information.  Future event

Hosts for IOI 2026 and 2027
 Uzbekistan and Germany will host IOI 2026 and IOI 2027, respectively. Check out the Editions page for more information.  Future event

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.

History of the IOI

Several International Olympiads in Informatics have been organized so far, hosted by a number of different countries.


  • IOI 1989, Bulgaria

  • IOI 1990, Soviet Union

  • IOI 1991, Greece

  • IOI 1992, Germany

  • IOI 1993, Argentina

  • IOI 1994, Sweden

  • IOI 1995, Netherlands

  • IOI 1996, Hungary

  • IOI 1997, South Africa

  • IOI 1998, Portugal

  • IOI 1999, Türkiye

  • IOI 2000, China

  • IOI 2001, Finland

  • IOI 2002, Korea

  • IOI 2003, USA

  • IOI 2004, Greece

  • IOI 2005, Poland

  • IOI 2006, Mexico

  • IOI 2007, Croatia

  • IOI 2008, Egypt

  • IOI 2009, Bulgaria

  • IOI 2010, Canada

  • IOI 2011, Thailand

  • IOI 2012, Italy

  • IOI 2013, Australia

  • IOI 2014, Taiwan

  • IOI 2015, Kazakhstan

  • IOI 2016, Russia

  • IOI 2017, Iran

  • IOI 2018, Japan

  • IOI 2019, Azerbaijan

  • IOI 2020, Singapore*

  • IOI 2021, Singapore*

  • IOI 2022, Indonesia

  • IOI 2023, Hungary

  • IOI 2024, Egypt

Organization

The International Olympiad in Informatics is organized according to the IOI Regulations, and the decision made by the General Assembly.
On this site, you can find all regulations, minutes, and people involved with the organization.

OrganizationInfoMembers

About

The IOI is one of five international science olympiads. The primary goal of the IOI is to stimulate interest in informatics (computing science) and information technology.

Another important goal is to bring together exceptionally talented pupils from various countries and to have them share scientific and cultural experiences.

Contestants

Administration

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