Partner:
8th Polish Olympiad in Informatics
Tasks
| Antiprime Numbers | (Stage I) | |
| Green Game | (Stage I) | |
| Density Map | (Stage I) | |
| Intervals | (Stage I) | |
| Weaker Goldbach | (Stage II - day 0) | |
| Peaceful Comission | (Stage II - day 1) | |
| Island | (Stage II - day 1) | |
| Ants and the Ladybug | (Stage II - day 2) | |
| Travel | (Stage II - day 2) | |
| Wandering Flea Trainers | (Stage III - day 0) | |
| Necklaces | (Stage III - day 1) | |
| City Tour | (Stage III - day 1) | |
| Bank | (Stage III - day 2) | |
| Goldmine | (Stage III - day 2) | |
| Chain | (Stage III - day 2) |