American Computer Science League (ACSL)
Computer Science. | Computer Science. | High School | Math & Programming. | Middle School | Primary School

One of the oldest computer science Challenges with 47 years of history
Approved by the National Association of Secondary School Principals (NASSP)
Authenticated by the Computer Science Teachers Association
Sponsored by Google, ADOBE and other advanced technology companies
Based on cumulative team scores, top teams are invited to ACSL ALL-Star
4 different levels suitable for students from Grade 3 to 12
Past papers are available for preparation
December, 2024 – August, 2025… Read More

The Oxford University Computing Challenge (OUCC)
Computer Science. | Computer Science. | High School | Math & Programming. | Middle School | Primary School

The Oxford University Computing Challenge (OUCC) Introduction Challenge Rules OUCC Syllabus Age group differences 2023 Final Statistics FAQ 考试入口 Past paper Sign upScan to sign up Organized by the Oxford University Advanced selection for British Informatics Olympiad Four difficulty levels: Elite, … Read More

Computational and Algorithmic Thinking (CAT)
Computer Science. | High School | Math & Programming. | Middle School | Primary School | Science.

Computational and Algorithmic Thinking (CAT) Introduction Sample Problems Challenge Rules Registration Details FAQ 考试入口 Learning Resources