Hello, Codeforces!
amurto and I are glad to invite everyone to participate in Codeforces Round 838 (Div. 2), which will be held on Dec/15/2022 17:35 (Moscow time).
This Round will be rated for participants with rating strictly lower than 2100. Participants from the first division are also welcomed to take part in the competition but it will be unrated for them.
You will be given 7 problems and 2 hours and 30 minutes to solve them. One of the problems will be interactive. Make sure to read this blog and familiarize yourself with these types of problems before the round!
We would like to thank:
- errorgorn for amazing coordination and help with the problem preparation.
- KAN for translation of the statements into Russian
- TheScrasse for providing suggestions which helped us to improve one problem.
- GoatTamer for discussing problems with us while our proposal was in review and testing the round.
- dorijanlendvaj, Um_nik, tabr, jeroenodb, Kira_1234, rivalq, thenymphsofdelphi, MagentaCobra, prvocislo, towrist, maomao90, IceKnight1093, AGRU, Omja, valeriu, TheScrasse, Perpetually_Purple, priyanshu_bhardwaj, Nahian9696, koderkushy, Non-origination, brobat, jampm, nyaruhodo, the_hyp0cr1t3, iLLusio, Utkarsh.25dec, ak2006, AlperenT, physics0523, udhavvarma03, welleyth, meme, SlavicG, MasterRayuga, recurecurring, dedsec_29, blitztage, Mo2men and tibinyte for testing this round and providing feedback.
- MikeMirzayanov for great Codeforces and Polygon platforms.
Score distribution is 500 — 1000 — 1750 — 2000 — 2500 — 2750 — 3500.
UPD1: Congratulations to the winners!
Overall:
Rated:
UPD2: Editorial is out.
We are looking forward to your participation!