The round will be rated for participants of Division 2 with a rating lower than 2100. Division 1 participants can participate unofficially in the round.
You will be given 6 problems and 2 hours to solve them. One of the problems will be interactive, so please read this guide if you are not familiar with interactive problems.
The score distribution will be 500 — 1000 — 1250 — 1750 — 2250 — 3000.
All problems were created and prepared by me.
I would like to thank:
- ScarletS and KAN for coordinating the round
- Alexdat2000 for translating statements to Russian
- AggravatedCow, ak2006, akifpatel, Awesome3.14, BucketPotato, dbaumg, Dominater069, EnDeRBeaT, errorgorn, fishy15, jampm, m0nster.eXe, maomao90, Nahian9696, nyaruhodo, Olympia, phattd, prvocislo, PurpleCrayon, satyam343 for testing the round
- and of course, MikeMirzayanov, for the Codeforces and Polygon platforms
Good luck to all the participants!
Update: Editorial is available