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Codeforces Round #647 — Thanks, Algo Muse!

Revision en24, by Anadi, 2020-06-05 11:56:32

Hello Codeforces!

We have a pleasure to invite you to Codeforces Round #647 (Div. 1) and Codeforces Round #647 (Div. 2). This round will take place on Jun/04/2020 17:35 (Moscow time). In both divisions, you will have 2.5 hours to solve 6 problems. Three of them will be shared.

The problems for this round were prepared by MicGor, Grzmot, Okrut and me.

We would like to thank everyone who made this round possible:

We hope you will enjoy the problem set! Good luck!

UPD: Score distribution:

  • Div 1: $$$500$$$ $$$-$$$ $$$1250$$$ $$$-$$$ $$$2000$$$ $$$-$$$ $$$2500$$$ $$$-$$$ $$$3000$$$ $$$-$$$ $$$3500$$$
  • Div 2: $$$500$$$ $$$-$$$ $$$1000$$$ $$$-$$$ $$$1500$$$ $$$-$$$ $$$2000$$$ $$$-$$$ $$$2750$$$ $$$-$$$ $$$3500$$$

UPD: Editorial

UPD: Congratulations to the winners!

Div. 1:

Div. 2

Below is a message for you from MikeMirzayanov:

AlgoMuse

With this round, we want to say thank you to Algo Muse for the significant contribution and support!

Algo Muse is an educational site that conducts online algorithmic contests in pen-and-paper style (no coding). It was originally started to help students prepare for theory qualifiers for graduate admissions. At present, the problems have a broader appeal, though occasionally an odd problem may require knowledge of linear algebra, probability, or group theory. The website is maintained by former students of IIT Bombay. To find out more, visit their website or their twitter account.

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en24 English Anadi 2020-06-05 11:56:32 1 Tiny change: 'he winners**\n\nDiv.' -> 'he winners!**\n\nDiv.'
en23 English Anadi 2020-06-05 11:55:36 368 Tiny change: 'n- [user: _khushi_]\n- [use' -> 'n- [user: \_khushi\_]\n- [use'
en22 English Anadi 2020-06-04 20:37:00 65
en21 English Anadi 2020-06-03 17:38:49 119 Tiny change: ' - Div 1: 500\n - Div 2' -> ' - Div 1: $500$ -- $1250$\n - Div 2' (published)
en20 English Anadi 2020-06-03 17:30:53 59 Tiny change: ' luck!\n\n\nBelo' -> ' luck!\n\n**UPD: Score distribution:**\n\n\nBelo' (saved to drafts)
en19 English Anadi 2020-06-03 11:44:44 26 Tiny change: '020-06-02] for taki' -> '020-06-02], [user: HIR180] for taki'
en18 English Anadi 2020-06-02 20:43:49 0 (published)
en17 English Anadi 2020-06-02 20:43:36 178 (saved to drafts)
en16 English Una_Shem 2020-06-02 16:16:51 19
en15 English Una_Shem 2020-06-02 16:11:54 0 (published)
en14 English Una_Shem 2020-06-02 16:11:40 4 Tiny change: 'account._ ' -> 'account._ \n\n' (saved to drafts)
en13 English Anadi 2020-06-02 16:08:58 0 (published)
en12 English Anadi 2020-06-02 16:07:04 4
en11 English Anadi 2020-06-02 16:04:57 6
en10 English Una_Shem 2020-06-02 15:14:16 2
en9 English Una_Shem 2020-06-02 14:57:49 11
en8 English Una_Shem 2020-06-02 14:55:17 140
en7 English Una_Shem 2020-06-02 14:52:37 931
en6 English Anadi 2020-06-02 13:05:21 21
en5 English Anadi 2020-06-02 12:40:44 10 Tiny change: 'dvice and testing\n' -> 'dvice and extensive testing\n'
en4 English Anadi 2020-06-02 12:30:55 12 Tiny change: 'ble advice\n\n- [use' -> 'ble advice and testing\n\n- [use'
en3 English Anadi 2020-06-02 12:26:36 204
en2 English Anadi 2020-06-02 12:21:24 38
en1 English Anadi 2020-06-02 12:20:23 1238 Initial revision (saved to drafts)