(China) National Olympiad in Informatics 2016
Problems
| Good string | 14 / 18 | 2300 | |
| Grid | 3 / 6 | 2200 | |
| The beauty of circulation | 7 / 15 | 2700 | |
| Interval | 11 / 11 | 1900 |
| Good string | 14 / 18 | 2300 | |
| Grid | 3 / 6 | 2200 | |
| The beauty of circulation | 7 / 15 | 2700 | |
| Interval | 11 / 11 | 1900 |