Just finished
IOI 2024 took place in Egypt. Visit the official website to learn more.
Just finished IOI 2024 in Egypt
USACO 2019/2020

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/