Codeforces Round #630 (Div. 2)

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Codeforces Round #630 (Div. 2)

Revision en4, by triple__a, 2020-03-29 09:13:06

Hello Codeforces!

I am glad to invite you to Codeforces Round 630 (Div. 2), which will take place on Mar/31/2020 16:35 (Moscow time) and will be rated for all Division 2 participants.

All tasks in this round were prepared by me. Hope that you will enjoy those tasks!

I would like to thank:

awoo for great coordination of this round, and the idea of solution of one task!
Nanako, Nezzar for useful discussion and testing of those tasks!
antontrygubO_o, McDic, vovuh, TBeumsJryi, socho, Oak_limy, Stresshoover, I1I1I11I1I1, defolaut, hx073269 and Pavlova for testing those rounds and invaluable suggestions!
MikeMirzayanov for great systems Codeforces and Polygon!

To avoid queueforces, we provide small amount but strong(hope so) pretests for first tasks. Hope it works!

Good luck and have fun!

Revisions

Rev.	By	When	Δ	Comment
en22	triple__a	2020-04-01 05:47:55	4	(published)
en21	triple__a	2020-04-01 05:47:17	847	(saved to drafts)
en20	triple__a	2020-03-31 19:33:34	0	Tiny change: ' editorial.\n' -> ' editorial\n' (published)
en19	triple__a	2020-03-31 19:33:14	98	(saved to drafts)
en18	triple__a	2020-03-31 11:50:40	2	Tiny change: '250-3000\n' -> '250-3000\n\n'
en17	triple__a	2020-03-31 11:49:51	65
en16	triple__a	2020-03-30 12:14:19	0	(published)
en15	triple__a	2020-03-30 12:12:08	94
en14	triple__a	2020-03-29 18:22:28	20
en13	triple__a	2020-03-29 13:39:11	25	Tiny change: '9], [user:S' -> '9], [user:Amori], [user:S'
en12	triple__a	2020-03-29 13:03:41	4	Tiny change: 'for first tasks. Ho' -> 'for first few tasks. Ho'
en11	triple__a	2020-03-29 13:02:51	24	Tiny change: 'te you to [contest:' -> 'te you to my first official round [contest:'
en10	triple__a	2020-03-29 13:02:11	16	Tiny change: 'tasks and tasks and point distribut' -> 'tasks and score distribut'
en9	triple__a	2020-03-29 09:26:39	4
en8	triple__a	2020-03-29 09:25:42	48
en7	triple__a	2020-03-29 09:18:26	82
en6	triple__a	2020-03-29 09:16:48	20	Tiny change: 'orces, we provide s' -> 'orces, we will provide s'
en5	triple__a	2020-03-29 09:14:22	6
en4	triple__a	2020-03-29 09:13:06	9	Tiny change: 'o thank:\n- [user:' -> 'o thank:\n\n- [user:'
en3	triple__a	2020-03-29 09:12:10	988
en2	triple__a	2020-03-29 08:53:27	116	Tiny change: 'aaa' -> ''
en1	triple__a	2020-03-29 08:50:22	6	Initial revision (saved to drafts)