Codeforces Round 1127 (Div. 1 + Div. 2)

Правка en1, от efishel, 2026-10-08 09:34:15

buenas, Codeforces !

i know you are all busy people but we have 2273, which will start on Oct/11/2026 21:35 (Moscow time). You will be given 6 problems and 150 minutes to solve them. Some problems will be divided into subtasks.

This round is based on the Mexican Olympiad in Informatics (OMI) 2026.

Please note the unusual starting time.

The team of writers is made up by jampm, Francisco_Martin, Teto, SopaconK, Remgagagali727, Marckess, and efishel. We have spent a ton of effort setting the round as well as the Olympiad, we hope you enjoy it.

The team would like to thank:

cry for his ample basement and considerate coordination.

All the testers for their support and great feedback (we love you):

Alexdat2000 for translating statements.

KAN for believing in the project.

ocarima the godfather of the Mexican Olympiad in Informatics, for believing in us, all his support and pushing us to grow.

MikeMirzayanov you know why :)

История

Правки

Rev.	Кто	Когда	Δ	Комментарий
en36	efishel	2026-10-11 23:42:51	6239
en35	efishel	2026-10-11 22:21:34	99
en34	Marckess	2026-10-11 02:16:46	92
en33	efishel	2026-10-10 08:13:33	24
en32	Francisco_Martin	2026-10-10 04:50:48	35	Tiny change: 'eg"></img> no agreges mierdas que no pupil :D' -> 'eg"></img>'
en31	Francisco_Martin	2026-10-10 04:49:25	6445
en30	efishel	2026-10-10 04:11:00	184	Tiny change: 'an style="red">4 hours ' -> 'an style="color: red;">4 hours '
en29	efishel	2026-10-10 03:56:04	5	Tiny change: 't-size: 1.2em;">[user' -> 't-size: 1.15em;">[user'
en28	efishel	2026-10-10 03:46:32	8	Tiny change: 'ourist,2024-08-31].\n\n<spa' -> 'ourist,2026-10-08].\n\n<spa'
en27	efishel	2026-10-10 03:43:51	2	Tiny change: ' t#### ¡<em>' -> '#### ¡<em>'
en26	efishel	2026-10-10 03:42:28	8	Tiny change: '#### ¡<em>' -> ' t#### ¡<em>'
en25	efishel	2026-10-10 03:24:44	8	Tiny change: 'why :)\n\nAuthors + <a cl' -> 'why :)\n\nWriters + <a cl'
en24	efishel	2026-10-10 03:24:14	41
en23	efishel	2026-10-10 03:23:40	233	Tiny change: 'ry/45307).\n\nDiv.' -> 'ry/45307). [contest:2273]\n\nDiv.'
en22	efishel	2026-10-10 02:23:15	145
en21	efishel	2026-10-10 02:08:07	4
en20	efishel	2026-10-10 02:06:13	95
en19	efishel	2026-10-10 02:00:35	0	(published)
en18	efishel	2026-10-10 02:00:11	47
en17	efishel	2026-10-10 01:59:37	4	Tiny change: ' Round 1126](https://' -> ' Round 1127](https://'
en16	efishel	2026-10-10 01:56:30	5
en15	efishel	2026-10-10 01:54:40	45
en14	efishel	2026-10-10 01:53:36	214	Tiny change: 'E \| F \|\n\| Div. ' -> 'E \| F \|\n\|---\|---\|---\|---\|---\|---\|---\|\n\| Div. '
en13	efishel	2026-10-09 08:21:11	138
en12	efishel	2026-10-09 07:51:48	74	Tiny change: ':jampm,2026-10-7], [user:F' -> ':jampm,2023-03-29], [user:F'
en11	efishel	2026-10-09 07:06:31	27	Tiny change: '026-10-08].\n\n[use' -> '026-10-08], [user:tourist,2024-08-30].\n\n[use'
en10	efishel	2026-10-09 06:53:51	77	Tiny change: 'orces!\n\nWe are' -> 'orces!\n\n![ ](http://imgur.com/a/0MJU636)\n\nWe are'
en9	efishel	2026-10-09 06:46:20	120	Tiny change: 'e: 1.5em;" [user:cry,' -> 'e: 1.5em;">[user:cry,'
en8	efishel	2026-10-09 06:23:20	143	Tiny change: 'oy it.\n\nThe team w' -> 'oy it.\n\n### The team w'
en7	efishel	2026-10-09 05:36:30	184	Tiny change: 'time is 4 hours l' -> 'time is _4_ hours l'
en6	efishel	2026-10-09 05:16:31	150
en5	efishel	2026-10-09 05:12:27	720	Tiny change: '024-10-11], [user:Marckess,2024-10-11]' -> '024-10-11]'
en4	efishel	2026-10-09 03:51:55	277	Tiny change: ' 2026.\n![ ](https://' -> ' 2026.\n![hey](https://'
en3	efishel	2026-10-08 23:56:21	59
en2	efishel	2026-10-08 23:54:09	332
en1	efishel	2026-10-08 09:34:15	1220	Initial revision (saved to drafts)