(China) National Olympiad in Informatics 2016
Problems
| Good string | 14 / 19 | 2300 | |
| Grid | 3 / 7 | 2200 | |
| The beauty of circulation | 9 / 20 | 2700 | |
| Interval | 16 / 17 | 1900 |
| Good string | 14 / 19 | 2300 | |
| Grid | 3 / 7 | 2200 | |
| The beauty of circulation | 9 / 20 | 2700 | |
| Interval | 16 / 17 | 1900 |