Hello Codeforces!

omeganot and I are excited to invite you to participate in Codeforces Round 919 (Div. 2) which will start on Jan/13/2024 17:35 (Moscow time). You will be given 2 hours to solve 6 problems. One of the problems is divided into 2 subtasks.

This round will be rated for participants of Division 2 with a rating lower than 2100.

We would like to thank

Artyom123 for his epic coordination and also for translating the problem statements!
A_G, PurpleCrayon, Yam, Andreasyan, oursaco, hyforces, Apple_Method, GusterGoose27, null_awe, awesomeguy856, lunchbox, jli505, Lemur95, ocasu, EmeraldBlock, EnDeRBeaT, cry, htetgm, SriniV, nonrice, mark, thehunterjames, ETL, AndrewPav, ForgottenDestiny, lazipotato, dutin, and Saq56 for testing the contest and providing valuable feedback.
MikeMirzayanov for the amazing Codeforces and Polygon platforms.
You for participating!

The score distribution is $$$500 - 1000 - 1500 - 2000 - 2250 - (2500 - 2500)$$$.

We hope everyone will enjoy the round!

UPD 1: Editorial

UPD 2: Congratulations to our winners and first solves!

Div 1 + 2

Div 2

First solves

Rev.	By	When	Δ	Comment
en18	sum	2024-01-13 23:46:40	778	Tiny change: 'r:ArtAlex] (tied)\n4. [user' -> 'r:ArtAlex]\n4. [user'
en17	sum	2024-01-13 19:39:06	64
en16	sum	2024-01-13 06:59:51	57
en15	sum	2024-01-13 01:35:30	0	(published)
en14	sum	2024-01-13 01:35:10	1	Tiny change: 'd I are exited to in' -> 'd I are excited to in' (saved to drafts)
en13	sum	2024-01-10 21:35:05	0	(published)
en12	sum	2024-01-10 21:33:31	36	Tiny change: '0], [user:l' -> '0], [user: ForgottenDestiny], [user:l'
en11	sum	2024-01-10 21:23:08	93
en10	sum	2024-01-10 19:28:52	58
en9	sum	2024-01-10 19:27:01	6
en8	sum	2024-01-10 08:31:26	6	Tiny change: ' everyone enjoys the round' -> ' everyone will enjoy the round'
en7	sum	2024-01-10 08:31:10	4	Tiny change: 'ibution is: \n$500 - 100' -> 'ibution is $500 - 100'
en6	sum	2024-01-10 08:30:59	3	Tiny change: 'ibution is $500 - 100' -> 'ibution is: \n$500 - 100'
en5	sum	2024-01-10 08:29:56	54	Tiny change: '### Hello Codeforces!\n\n[user:' -> 'Hello Codeforces!\n=================\n\n[user:'
en4	sum	2024-01-10 08:27:20	116	Tiny change: 'n platforms.\n\nThe s' -> 'n platform.\n\nThe s'
en3	sum	2024-01-10 08:22:09	952	Tiny change: 'e to thank:\n- [user:' -> 'e to thank\n\n- item\n- item\n\n\n\n\n- [user:'
en2	sum	2024-01-10 08:09:31	359	Tiny change: '100.\n\n\n' -> '100.\n\nWe would like to thank:\n- [user:artyom123]\n\n'
en1	sum	2023-11-22 21:19:02	42	Initial revision (saved to drafts)