Hi Codeforces!
I am glad to announce and invite you to Codeforces Round 689 (Div. 2, based on Zed Code Competition), which will be held on Dec/11/2020 17:35 (Moscow time).
We want to offer you to solve 6 problems taken from the Zed Code Competition 2020, which was held as part of the Adapt by Zed conference powered by EPAM Systems.
This round will be rated for the participants with rating lower than 2100.
- The authors of the round are: Aliaksandr AleXman111 Kryvasheyeu, Aliaksandr sdryapko Drapko, Aliaksei netman Vistiazh and me.
- The round was coordinated by Vladimir vovuh Petrov and Nikolay KAN Kalinin.
- The round was tested by: awoo, mohammedehab2002, thenymphsofdelphi, _overrated_, BRCode, morzer, Retired_cherry, mesanu, SlavicG, Shinchan01, manik.jain, Coder-HVZ, Rox, hloya_ygrt, 244mhq, Wind_Eagle, PuRpLe_FoReVeR, Gassa, namanbansal013, saurabhyadavz and andrew.
- And, of course, thank you very much Mike MikeMirzayanov Mirzayanov for creating the polygon and codeforces platforms.
Thanks a lot for your contribution to the preparation of the round! Good luck with the competition!
UPD: The scoring distribution is 500 — 1000 — 1250 — 1500 — 2250 — 2750.
Congratulations to the winners of div 2:
as well as div 1 winners:
Thank you all for participating! (editorial)