Codeforces Round #320 [Bayan Thanks-Round]

Правка en8, от dreamoon_love_AA, 2015-09-15 20:38:59

Hello, everyone! Codeforces Round #320 will be held at Sep/16/2015 18:00 MSK. Note that round starts in the unusual time!

The problems are from tmt514, Shik, drazil, and me(dreamoon_love_AA). Also we want to thank Zlobober for helping us preparing the round, anonymous(will be updated soon) testers for testing this round , Delinur for translating the statement into Russian, and MikeMirzayanov for Codeforces and Polygon.

This is my second time organizing a problemset for a Codeforces round (my previous round: #292). In the last round all problems are provided by me. But I think that if problems are provided by more people, then the contest will be more interesting! So I asked my friends to help me this time. Hope everybody can have fun during the round!

Participants in each division will be given six tasks and two and a half hours for solving them (the last four problems in Div. 2 are as same as as the first four problems in Div. 1). Scoring system will be announced later closer to the start of the round.

Bayan is an Iranian software company working on large-scale web applications. It doesn't only develop the search engine, but also it holds an annual open competition Bayan Programming Contest with an on-site round in Tehran. The on-site round of 2015 became an international event with many strong participants.

Bayan has supported Codeforces on our Codeforces 5-year crowdfunding program. Thank you Bayan! This round is in your honor!

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en19 Английский dreamoon_love_AA 2015-09-16 21:55:04 73
en18 Английский dreamoon_love_AA 2015-09-16 21:22:42 247
en17 Английский dreamoon_love_AA 2015-09-16 18:06:56 75
en16 Английский dreamoon_love_AA 2015-09-16 18:03:56 75
en15 Английский dreamoon_love_AA 2015-09-16 17:59:49 4 Tiny change: 'honor!\n\nUPD 1: Due to t' -> 'honor!\n\n**UPD 1**: Due to t'
en14 Английский dreamoon_love_AA 2015-09-16 17:58:27 109
en13 Английский dreamoon_love_AA 2015-09-16 17:57:43 72
en12 Английский dreamoon_love_AA 2015-09-16 09:40:30 18
en11 Английский dreamoon_love_AA 2015-09-15 23:00:23 0 (published)
en10 Английский dreamoon_love_AA 2015-09-15 22:59:50 74 (saved to drafts)
en9 Английский dreamoon_love_AA 2015-09-15 20:40:31 0 (published)
en8 Английский dreamoon_love_AA 2015-09-15 20:38:59 978
en7 Английский dreamoon_love_AA 2015-09-15 20:37:16 508 (saved to drafts)
en6 Английский dreamoon_love_AA 2015-09-15 18:29:25 16
en5 Английский dreamoon_love_AA 2015-09-15 18:26:56 104
en4 Английский dreamoon_love_AA 2015-09-15 16:56:55 0 (published)
en3 Английский dreamoon_love_AA 2015-09-15 16:30:55 139
en2 Английский dreamoon_love_AA 2015-09-15 01:03:04 16
en1 Английский dreamoon_love_AA 2015-09-15 00:56:19 1206 Initial revision (saved to drafts)