American Computer Science League
Contest #4 test materias were sent. The Contest #4 end date is May 1st.

American Computer Science League
10 Brisas Drive
West Warwick, RI 02893

Welcome to the American Computer Science League (ACSL)!

ACSL organizes computer science contests and computer programming contests for elementary, junior, and senior high school students. This year, our 42nd year of continuous operation, over 300 teams in the United States, Canada, Europe, Africa and Asia are participating in various divisions. ACSL is on the approved activities list of the National Association of Secondary School Principals (NASSP). ACSL is also an institutional member of the Computer Science Teachers Association.

We welcome participation from all pre-college schools around the world. But read on, if you are in Korea, Viet Nam, China, or Egypt.

We are super excited to announce a partnership with the Academic Consulting and Education group for students in Korea ( and Viet Nam ( Students in those countries will particpate in the 4 regular season contests at a local site; schools will be reported in the ACSL leaderboard and top schools will be invited to the All-Star Contest.

We are also excited to partner with ASDAN China to administer the ACSL contests in China. Schools participating via ASDAN (register using the link will take the ACSL contests translated into Chinese. Schools in China may also register directly with ACSL.

We are also excited to be partnering with Ideasgym in Egypt.

Try out some sample contests to get a flavor of our contests.

A description of all the short answer test topics with YouTube videos showing sample question solutions is available on the ACSL wiki pages.

Schools that expect to participate in the annual Invitational All-Star Contest should refer to our All-Star Contest Info page.