Codeforces Round #830 (Div. 2)

№	Пользователь	Рейтинг
1	tourist	3690
2	jiangly	3647
3	Benq	3581
4	orzdevinwang	3570
5	Geothermal	3569
5	cnnfls_csy	3569
7	Radewoosh	3509
8	ecnerwala	3486
9	jqdai0815	3474
10	gyh20	3447

№	Пользователь	Вклад
1	maomao90	174
2	awoo	164
3	adamant	162
4	TheScrasse	160
5	nor	158
6	maroonrk	156
7	-is-this-fft-	152
8	orz	146
9	pajenegod	145
9	SecondThread	145

Hello, Codeforces!

I am happy to invite you to my Codeforces Round 830 (Div. 2) which will be held at Oct/23/2022 13:05 (Moscow time). The round will be rated for all the participants with rating strictly less than 2100 before Oct/23/2022 10:50 (Moscow time).

The tasks were created and prepared by 74TrAkToR. I would like to thank everyone who helped me a lot with round preparation.

Coordinator Artyom123 for excellent communication and help with preparation.
Testers gisp_zjz, Pointy, aaaaawa, feecIe6418, nnv-nick, xiaoziya, Ormlis, huangzirui, Chenyu_Qiu, triple__a, gyh20, low_, voventa, tibinyte, Mr.Robot_28, Qingyu, RUSH_D_CAT, physics0523, Lucina, Rhodoks, Tekor, Milesian, Kalashnikov, Lokeo, mejiamejia, TomiokapEace, Chenyu_Qiu, AquaMoon, MagicalFlower for high-quality testing and valuable advices.
As well as the testers who tested the CheReKOSH Team Olympiad — it was from the problems of this Olympiad that the round was composed: orz, DIvanCode, CAMOBAP31.
MikeMirzayanov for amazing Codeforces and Polygon platforms.

During the round you will need to solve 5 problems, some of which have subtasks. You will have 2 hours to solve them.

Score distribution will be announced shortly before the round.

We wish you good luck and high rating!

UPD: Score distribution: $$$750-750-(1000-1000)-(1250-1250)-3000$$$

UPD: Editorial

Rev.	Кто	Когда	Δ	Комментарий
ru17	74TrAkToR	2022-10-23 15:06:34	0	(опубликовано)
en14	74TrAkToR	2022-10-23 15:06:28	0	(published)
en13	74TrAkToR	2022-10-23 15:05:54	66	(saved to drafts)
ru16	74TrAkToR	2022-10-23 15:05:27	63	(сохранено в черновиках)
en12	74TrAkToR	2022-10-23 13:22:48	0	(published)
ru15	74TrAkToR	2022-10-23 13:22:41	0	(опубликовано)
en11	74TrAkToR	2022-10-23 13:22:25	32	Tiny change: '022-10-20]' -> '022-10-20], [user:flowerletter,2022-10-20]' (saved to drafts)
ru14	74TrAkToR	2022-10-23 13:21:52	32	Мелкая правка: '022-10-20]' -> '022-10-20], [user:flowerletter,2022-10-20]' (сохранено в черновиках)
en10	Artyom123	2022-10-23 12:59:52	71
ru13	Artyom123	2022-10-23 12:59:22	64	(опубликовано)
ru12	74TrAkToR	2022-10-23 12:55:34	0	(сохранено в черновиках)
ru11	74TrAkToR	2022-10-23 08:57:37	0	(опубликовано)
en9	74TrAkToR	2022-10-23 08:57:30	0	(published)
en8	74TrAkToR	2022-10-23 08:57:21	28	Tiny change: '022-10-20]' -> '022-10-20], [user:aquamoon,2022-10-20]' (saved to drafts)
ru10	74TrAkToR	2022-10-23 08:57:09	28	Мелкая правка: '022-10-20]' -> '022-10-20], [user:aquamoon,2022-10-20]' (сохранено в черновиках)
en7	74TrAkToR	2022-10-23 08:42:52	0	(published)
ru9	74TrAkToR	2022-10-23 08:42:44	0	(опубликовано)
en6	74TrAkToR	2022-10-23 08:42:18	345	(saved to drafts)
ru8	74TrAkToR	2022-10-23 08:41:10	341	(сохранено в черновиках)
en5	74TrAkToR	2022-10-21 12:39:32	30	Tiny change: 'than 2100 </b> before </' -> 'than 2100 before </'
ru7	74TrAkToR	2022-10-21 12:38:32	32
en4	74TrAkToR	2022-10-21 11:49:50	25	Tiny change: '0], [user:gyh20,2022-10-20], [user:' -> '0], [user:'
ru6	74TrAkToR	2022-10-21 11:49:32	25	Мелкая правка: '0], [user:gyh20,2022-10-20], [user:' -> '0], [user:'
en3	74TrAkToR	2022-10-21 00:38:57	0	(published)
ru5	74TrAkToR	2022-10-21 00:38:45	0	(опубликовано)
ru4	74TrAkToR	2022-10-21 00:38:18	29	Мелкая правка: '022-10-20]' -> '022-10-20], [user:CAMOBAP31,2022-10-20]'
en2	74TrAkToR	2022-10-21 00:38:04	29	Tiny change: '022-10-20]' -> '022-10-20], [user:CAMOBAP31,2022-10-20]'
en1	74TrAkToR	2022-10-21 00:37:03	1577	Initial revision for English translation (saved to drafts)
ru3	74TrAkToR	2022-10-21 00:30:24	1	Мелкая правка: '022-10-20] </li>\n<l' -> '022-10-20]. </li>\n<l'
ru2	74TrAkToR	2022-10-21 00:29:29	187
ru1	74TrAkToR	2022-10-20 18:53:22	1417	Первая редакция (сохранено в черновиках)

История