(China) National Olympiad in Informatics 2016
Problems
| Good string | 13 / 17 | 2300 | |
| Grid | 2 / 5 | 2200 | |
| The beauty of circulation | 6 / 14 | 2700 | |
| Interval | 8 / 8 | 1900 |
| Good string | 13 / 17 | 2300 | |
| Grid | 2 / 5 | 2200 | |
| The beauty of circulation | 6 / 14 | 2700 | |
| Interval | 8 / 8 | 1900 |