| Latest News |
| Heat Event |
| Final Event |
| -- Open Problem |
| -- Briefing Session |
Results 
|
| Reference Materials |
| Last year's homepage |
Reference Materials
Heat Event
| Year | Senior Group | Junior Group |
|---|---|---|
| 2005 | English Chinese Suggested Solution | English Chinese Suggested Solution |
| 2004 | English Chinese Suggested Solution | English Chinese Suggested Solution |
| 2003 | English Chinese Suggested Solution | English Chinese Suggested Solution |
| 2002 | English Chinese | English Chinese |
| 2001 | English Chinese | English Chinese |
| 2000 | English Chinese Answer | English Chinese Answer |
| 1999 | English Chinese | English Chinese |
Note: The suggested solutions are prepared by the HKOI Training Team. They are for reference only and should not be considered as the official answer.
Final Event
| Year | Senior Group | Junior Group |
|---|---|---|
| 2005 | English Chinese | English Chinese |
| 2004 | English Chinese | English Chinese |
| 2003 | English Chinese | English Chinese |
| 2002 | English Chinese | English Chinese |
| 2001 | English Chinese | English Chinese |
| 2000 | English Chinese | English Chinese |
| 1999 | English Chinese Testdata | English Chinese Testdata |
| 1998 | English Chinese Testdata | English Chinese Testdata |
| 1997 | AM: English Chinese Testdata PM: English Chinese Testdata | |