(China) National Olympiad in Informatics 2017
Problems
| Integer | 2 / 7 | 2400 | |
| Earthworms queue | 2 / 2 | 2000 | |
| Pool | 3 / 8 | 2700 | |
| Game | 1 / 1 | 2200 | |
| Vegetables | 1 / 3 | 2400 |
| Integer | 2 / 7 | 2400 | |
| Earthworms queue | 2 / 2 | 2000 | |
| Pool | 3 / 8 | 2700 | |
| Game | 1 / 1 | 2200 | |
| Vegetables | 1 / 3 | 2400 |