Hello, Codeforces!

The day before yesterday there was an NTO olympiad. And this Saturday we will hold an official mirror based on her tasks!

The mirror will be held on the Sort Me platform and will be ranked.

Due to the difference of a few days, this is not a mirror, but rather a front camera. But the conditions coincide with both the format of the NTO (except for debuffing) and the format of our rounds: 5 tasks, 2 hours, IOI (test groups), up to 100 points for each task.

The contest will be rated!

Please, participants of the NTO Finals refrain from participating in the mirror of the Olympiad!

Registration is available at link. The contest will start March 23 at 18:00 MSC.

Good luck! May the strongest one win!

Many thanks to Anecstasiya for help in the last task, and also to Alexey Egorov and MEPhI team for excellent organization of the contest and help in testing! Also thanks to sadfun for the opportunity to host the mirror of the Olympiad on the sort-me platform!