Hello, Codeforces!
I am pleased to invite you to participate in Codeforces Round 899 (Div. 2), which will be held on 25.09.2023 17:35 (Московское время).
All problems were written and prepared by me.
You will be given 5 problems, and one of them is divided into two subtasks. You will have 2 hours to solve them.
I would like to thank:
irkstepanov for excellent coordination and Russian translation!
Golovanov399 for providing useful feedbacks.
kizen for helping me much with one problem of the contest.
ko_osaga for Nutella testing.
leinad2, Numbering, qwerasdfzxcl, kizen, Golovanov399 for Red testing.
Kaling, Mingyu331, chaeyihwan, Kawaii2DIdolOfGSHS, azberjibiou, mjhmjh1104, DELTARUNE, wuhudsm, as_dfsdf for Orange testing.
unordered_map, alex0211, gs20036, namolbbaemi, eeeDA, nlog for Purple testing.
andyandy, JaewonOh, kongum, Coruncanius, ez_code, fs_edge, chromate00 for Blue testing.
Hanlana18, papergundam, sjmjys954646 for Gray testing.
MikeMirzayanov for great Polygon and Codeforces platforms!
And last but not least, You for participating in the round!
Score distribution: $$$500 - 1000 - 1500 - 2000 - (2000 + 2000)$$$
Good luck and enjoy the round!
UPD: Editorial is out.
UPD2: Congratulations to the winners!
Official Contestants
Official + Unofficial Contestants
