SDIC 2025
Hong Kong Secondary Schools Software Development Invitational Contest (SDIC) 2025 Heat Event will be held on 20th September, 2025 (Saturday).
The application deadline is 3rd September, 2025 (Wednesday).
Latest News
2025 External Competition Results
The Hong Kong Olympiad in Informatics Training Team is pleased to announce that the team has achieved marvelous results in various external competitions this year. (See details)
| IOI 2025 | Sucre, Bolivia | 27 July – 3 August 2025 | 2 Silver, 2 Bronze |
|---|---|---|---|
| NOI 2025 | Shaoxing, Zhejiang | 12-18 July 2025 | 1 Silver, 5 Bronze |
| EGOI 2025 | Bonn, Germany | 14-20 July 2025 | 2 Bronze, 1 Honourable Mention |
| APIO 2025 | Uzbekistan | 17 May 2025 | 4 Silver, 2 Bronze |
HKOI Online Judge 2025/26 Renewal
The current subscriptions will expire on 2025-09-30. 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.