Hello!
I invite you to participate in the 29th Spain's Olympiad in Informatics' Online Mirror. This is the third year we are doing an online mirror. The two contests will start on 2025 April 5 11:00 CEST and 2025 April 6 11:00 CEST and will last 4 hours each.
Contest facts:
- Two 5-tasks contests with OI scoring (subtasks).
- Statements in English and Spanish.
- Problems are not ordered by difficulty.
- Problem selection and preparation directed by FelixMP. Including problems by BlancaHM, Elena V.R., FelixMP, lbm364dl, MeGustaElArroz23, misteg168 and rlidon2006.
- The problems will cover a wide range of difficulties, and the subtasks make it possible to progress in all problems, so it should be an interesting contest for participants of all skill levels. For reference, see the problems from previous years on Codeforces Gym.
The mirror contest will be held in Codeforces Gym.
Good luck and enjoy the problems!








