• Hong Kong Olympiad in Informatics (HKOI) is an annual programming competition for secondary students.
  • HKOI Online Judge
  • Hong Kong Olympiad in Informatics

HK students triumph at 33rd International Olympiad in Informatics

A team of Hong Kong students has brought home one gold and three silver medals against contestants from 88 countries or regions from all over the world at the 33rd International Olympiad in Informatics (IOI 2021). This is the best result since Hong Kong’s first participation in 1992.

Team members and results

Press Release


From left: Hsieh Chong Ho, Xie Lingrui, Leung Harris, Yeung Man Tsung

June 30, 2021 2:19 pm

Hong Kong Team Wins 1 Gold, 5 Bronzes in APIO 2021

The Hong Kong Team has won 1 Gold Medal and 5 Bronze Medals in the 2021 Asia-Pacific Informatics Olympiad, hosted by Indonesia. In particular, Leung Harris from Diocesan Boys’ School ranked 1st in the competition. Congratulations to the students!

List of winners

May 26, 2021 10:55 pm

Results of HKOI 2020/21

The results of HKOI 2020/21 has been released.

Results of HKOI 2020/21

January 30, 2021 6:21 pm

HKOI Training Team 2021

The first training session “Solutions to HKOI 2020/21 Final Event” will be held on January 30, 2021 (Saturday). Regular trainings will start on February 6 (Saturday).

Please refer to the general information and schedule page for more details.

January 28, 2021 5:22 pm

Results of NOIP 2020

Results of NOIP 2020 has been announced. HKACE will apply for NOIP certificates on behalf of all winners. Please do not apply for it on your own.

December 15, 2020 5:57 pm

Results of SDIC 2020

Results of SDIC 2020 has been announced. HKACE will apply for CSP-J/S certificates on behalf of all winners. Please do not apply for it on your own.

December 2, 2020 10:00 am