We are now accepting applications for Hong Kong Olympiad in Informatics 2026/27.
Heat Event: 7th November, 2026 (Saturday)
Final Event: 5th December, 2026 (Saturday)
Each secondary school may nominate up to 16 students. Application deadline is 27th October, 2026 (Tuesday). Nominations will be accepted on a first-come-first-serve basis.
For details, please visit https://hkoi.org/en/hkoi/.

We are now accepting applications for Hong Kong Girls’ Olympiad in Informatics 2026/27.
Main Event: 15th November, 2026 (Sunday)
Each secondary school may nominate up to 6 female students. Application deadline is 27th October, 2026 (Tuesday). Nominations will be accepted on a first-come-first-serve basis.
For details, please visit https://hkoi.org/en/hkgoi/

Our IOI 2026 gold medallists were featured on the RTHK programme Tween Life Journey to talk about their programming journey and IOI experience.

You can listen to the interview segment here on RTHK (Part 2, starting at ~24:00).

The Learn series offers a structured way to learn programming from the ground up. With more than 350 tasks, it is designed as an interactive alternative to a traditional programming textbook, combining explanations, examples, and guided exercises in C++ and Python.

For more details, please visit the Online Judge page.

Hong Kong Secondary Schools Software Development Invitational Contest (SDIC) 2026 Heat Event will be held on 19th September, 2026 (Saturday).

The application deadline is 4th September, 2026 (Friday).

The Hong Kong Olympiad in Informatics Training Team is pleased to announce that the team has achieved unprecedented success in this year’s external competitions, marking the best overall results in HKOI history. This landmark year features an unprecedented two Gold Medals at the IOI and our first-ever Gold Medal at the NOI. (See details)

The current subscriptions will expire on 2026-09-30. We are now accepting renewal and new subscriptions.

If you are interested in the subscription, please visit the Online Judge page for more information and guides.