Codeforces Round #769 (Div. 2)

№	Пользователь	Рейтинг
1	tourist	4009
2	jiangly	3823
3	Benq	3738
4	Radewoosh	3633
5	jqdai0815	3620
6	orzdevinwang	3529
7	ecnerwala	3446
8	Um_nik	3396
9	ksun48	3390
10	gamegame	3386

№	Пользователь	Вклад
1	cry	166
2	maomao90	163
2	Um_nik	163
4	atcoder_official	161
5	adamant	159
6	-is-this-fft-	158
7	awoo	157
8	TheScrasse	154
9	nor	153
9	Dominater069	153

Hi, Codeforces!

Vladithur and I are pleased to invite you to our Codeforces round Codeforces Round 769 (Div. 2), which will be on Jan/30/2022 17:35 (Moscow time). This round will be rated for participants with rating lower than 2100.

We would like to express our great gratitude to:

irkstepanov and KAN for ~~non-rejecting all our tasks~~ excellent coordination of the round and assistance in making problems.
Ormlis, antontrygubO_o, generic_placeholder_name, Alexdat2000, Dart-Xeyter, wxhtzdy, sohsoh, glebustim, radal, snowysecret, stevancv, maxverr, Scrubpai, Artem1303, RomkaRS, MaxShch for testing the round, finding weaknesses in tasks and giving usefull feedback.
MikeMirzayanov for cool platforms Codeforces and Polygon.

You will have 5 problems, one of which will contain 2 subproblems and 2 hours to solve them.

Scoring is 500 — 1000 — 1500 — 1750 — (2000 — 2000)

We have tried to make clear statements and strong ~~pre~~tests for the problems and we hope you will have fun and raise your rating up!

Good luck!

Rev.	Кто	Когда	Δ	Комментарий
ru17	Vladithur	2022-01-30 22:54:24	0	(опубликовано)
en33	Vladithur	2022-01-30 22:53:57	0	(published)
ru16	Vladithur	2022-01-30 22:53:27	433	(сохранено в черновиках)
en32	Vladithur	2022-01-30 22:52:01	445	Tiny change: ':tute7627]\n2. [user:jia' -> ':tute7627] ans [user:jia' (saved to drafts)
ru15	Igorfardoc	2022-01-30 19:37:46	0	(опубликовано)
ru14	Igorfardoc	2022-01-30 19:37:19	65	(сохранено в черновиках)
en31	Igorfardoc	2022-01-30 19:36:34	0	(published)
en30	Igorfardoc	2022-01-30 19:36:05	70	(saved to drafts)
en29	Igorfardoc	2022-01-30 19:25:09	0	(published)
en28	Igorfardoc	2022-01-30 19:20:30	0	(saved to drafts)
en27	Igorfardoc	2022-01-30 19:19:15	74	(published)
en26	Igorfardoc	2022-01-30 19:17:59	74	(saved to drafts)
ru13	Igorfardoc	2022-01-29 01:08:37	4	Мелкая правка: '22-01-28] and [user:KAN' -> '22-01-28] и [user:KAN'
ru12	Igorfardoc	2022-01-29 00:08:15	0	(опубликовано)
en25	Igorfardoc	2022-01-29 00:07:08	0	(published)
ru11	Vladithur	2022-01-28 23:37:13	14	Разбалловка
en24	Vladithur	2022-01-28 23:35:57	14	Changed scoring distribution
ru10	Igorfardoc	2022-01-28 18:42:00	3	Мелкая правка: '022-01-28], [user:Max' -> '022-01-28] и [user:Max'
en23	Igorfardoc	2022-01-28 18:41:45	5	Tiny change: '022-01-28], [user:Max' -> '022-01-28] and [user:Max'
en22	Igorfardoc	2022-01-28 18:38:37	4	Tiny change: 'rejecting all our tasks' -> 'rejecting our tasks'
en21	Igorfardoc	2022-01-28 18:37:33	1	Tiny change: '### Hi, Co' -> '#### Hi, Co'
ru9	Igorfardoc	2022-01-28 18:37:23	1	Мелкая правка: '### Привет' -> '#### Привет'
en20	Igorfardoc	2022-01-28 18:36:03	2	Tiny change: 's end.\n\n\n<spoil' -> 's end.\n\n<spoil'
en19	Igorfardoc	2022-01-28 18:35:43	2	Tiny change: 's end.\n\n<spoil' -> 's end.\n\n\n<spoil'
ru8	Igorfardoc	2022-01-28 18:33:00	17
ru7	Igorfardoc	2022-01-28 18:26:34	11
ru6	Igorfardoc	2022-01-28 18:20:43	71
ru5	Igorfardoc	2022-01-28 18:17:44	5	Мелкая правка: ', что это полезный ' -> ', что это даст полезный '
ru4	Igorfardoc	2022-01-28 18:16:06	73
ru3	Igorfardoc	2022-01-28 18:15:20	106
ru2	Igorfardoc	2022-01-28 18:14:32	1939
ru1	Igorfardoc	2022-01-28 18:02:28	2796	Первая редакция перевода на Русский (сохранено в черновиках)
en18	Vladithur	2022-01-28 17:02:28	82	Tiny change: 'edback to the authors a' -> 'edback to authors a'
en17	Igorfardoc	2022-01-28 16:54:01	1	Tiny change: 'k!\n\nAlso we would ' -> 'k!\n\nAlso, we would '
en16	Igorfardoc	2022-01-28 16:49:24	24	Tiny change: 'Hi, Codeforces!\n------------------\n[user:Vl' -> '### Hi, Codeforces!\n[user:Vl'
en15	Igorfardoc	2022-01-28 16:48:47	922
en14	Igorfardoc	2022-01-28 16:47:22	41
en13	Igorfardoc	2022-01-28 16:43:46	13	Tiny change: 'e authors of the round and it co' -> 'e authors and it co'
en12	Igorfardoc	2022-01-28 16:42:54	46
en11	Igorfardoc	2022-01-28 16:42:05	37
en10	Igorfardoc	2022-01-28 16:41:03	2	Tiny change: 'oblem A.\n\n- Do not' -> 'oblem A.\n- Do not'
en9	Igorfardoc	2022-01-28 16:40:32	24	Tiny change: 't [likes:1,option1]\n- Aver' -> 't [likes:1]\n- Aver'
en8	Igorfardoc	2022-01-28 16:34:51	438	Tiny change: 't (likes:1,option1)\n- Aver' -> 't (likes:1)\n- Aver'
en7	Vladithur	2022-01-28 16:01:57	179
en6	Igorfardoc	2022-01-28 15:42:01	265	Tiny change: 'lear statesments and ' -> 'lear statements and '
en5	Igorfardoc	2022-01-28 15:27:30	8	Tiny change: ' for cool Codeforces' -> ' for cool systemCodeforces'
en4	Igorfardoc	2022-01-28 15:23:22	102
en3	Igorfardoc	2022-01-28 15:14:02	614	Tiny change: 'y], [user:z' -> 'y], [user:sohsoh], [user:z'
en2	Igorfardoc	2022-01-28 14:58:07	320	Tiny change: 'ime:1632].' -> 'ime:1632].\n1234'
en1	Igorfardoc	2022-01-28 14:42:24	204	Initial revision (saved to drafts)

Hi, Codeforces!

История