Hong Kong Olympiad in Informatics – Hong Kong Olympiad in Informatics

Started in 1997, Hong Kong Olympiad in Informatics (HKOI) is a prestigious annual programming competition for secondary school students, focusing on algorithmic problem-solving and programming skills, and serving as the preliminary selection contest for the International Olympiad in Informatics (IOI) Hong Kong team.

Organizers

Co-organizers

Introduction Past Results

General Information

Competition Rules
Awards
Frequently Asked Questions

HKOI 2025/26

Apply / Nomination Results – Deadline: 28th October 2025 (Tuesday)

Heat Event – 8th November 2025 (Saturday)

Final Event – 6th December 2025 (Saturday)

HKOI 2024/25

Apply / Nomination Results – Deadline: 29th October 2024 (Tuesday)

Heat Event – 9th November 2024 (Saturday)

List of Finalists

Final Event – 7th December 2024 (Saturday)

Competition Results

Prepare

Competition Syllabus
Past Problems
Final Event Solutions