Coming soon

IOI 2025 will be hosted by Bolivia. Visit the official website to learn more.

Coming soon   IOI 2025 in Bolivia

USACO 2019/2020

December 13th, 2019 in Competitions

USACO will organize several online contests in 2019. Participation is free, and open to all. The contests are available in four divisions: bronze, silver, gold, and platinum. 

All returning participants start out in their former divisions, and new participants start out in the bronze division. The contests are for individuals only, not teams.

Each contest has 3 problems to which you will submit solution programs in C, C++, Pascal, Java, or Python.

The USACO 2019 December contest is available from December 13 through December 16. Visit the USACO website for more information: http://usaco.org/

In other news:

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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.

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.

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