February Contest

The USACO 2019 February contest has recently ended. Results are here.

First Place at IOI 2018!

Congratulations to team USA for a superb showing at the 2018 International Olympiad in Informatics in Tsukuba, Japan! From left to right: Spencer Compton (gold), Eric Zhang (gold), Benjamin Qi (gold, 1st place individual winner), and William Hu (bronze).

Finalists for 2017-2018 Season Announced

The USA Computing Olympiad is pleased to announce its finalists for the 2017-2018 season.

Training Pages Now Support Python

For those who prefer coding in Python, our training pages now support submission of programs written in Python 2.7 or Python 3.6.

2017 USA Team Announced

Congratulations to team USA selected from the finalists attending our 2017 training camp! From left to right: Benjamin Qi, Zhezheng Luo, Dhruv Rohatgi, Eric Zhang. Zhezheng placed 3rd individually and earned a gold medal at the 2017 IOI in Tehran, Iran (the remainder of the USA team was unable to attend the event, unfortunately, due to visa issues).

Finalists for 2016-2017 Season Announced

The USA Computing Olympiad is pleased to announce its finalists for the 2016-2017 season.

Team USA: Great Results at IOI 2016!

Congratulations on an excellent set of results from team USA at the 2016 International Olympiad in Informatics in Kazan, Russia: Dhruv Rohatgi (gold), Calvin Lee (silver), Daniel Chiu (gold), and Lawrence Li (gold).

Finalists for 2015-2016 Season Announced

The USA Computing Olympiad is pleased to announce its finalists for the 2015-2016 season.

Great Results for Team USA at IOI 2015!

Congratulations to Andrew He (gold), Demi Guo (silver), Alexander Wei (gold), and Daniel Chiu (gold), for one of the best showings ever for the USA team, at the 2015 International Olympiad in Informatics in Almaty, Kazakhstan!

Our Mission

The USACO supports computing education in the USA and worldwide by identifying, motivating, and training high-school computing students at all levels. We provide:

• Hundreds of hours of free on-line training resources that students can use to improve their programming and computational problem-solving skills.
• On-line programming contests (roughly six per year) for students at all levels.
• An intensive summer training camp, to which the top students in the USA are invited to further improve their skills and learn advanced material.
• The opportunity for the top four students in the USA to represent their country at the International Olympiad in Informatics (IOI), the most prestigious international algorithmic programming competition at the high-school level.

Team USA Wins Solid Gold at IOI 2014!

Congratulations to team representing the USA at the 2014 International Olympiad in Informatics in Taipei, Taiwan! -- Andrew He, Steven Hao, Scott Wu, and Joshua Brakensiek. All four won gold medals, and Scott Wu tied for first place with a perfect score after completing the contest in nearly half the allotted time! A truly remarkable result, and perhaps the best ever for team USA!

Your Account

2018-2019 Schedule

Dec 14-17: First Contest
Jan 18-21: Second Contest
Feb 22-25: Third Contest
Mar 29-Apr 1: US Open
May 23-Jun 1: Training Camp
Aug 4-11: IOI 2019 in Azerbaijan