Codeforces Round #339 (Div. 1 & Div. 2)

Revision en14, by Tigutor, 2016-01-14 23:43:06

Hi all!

In two days, at 19:35 MSK Codeforces Round #339 (Div. 1 & Div. 2) will take place. This is an unusual round since we — the problemsetters — are highschool students who participate in the programming training group at high school #179. This round is our first effort and we did our best to make it interesting and bug-free. I invite you all to compete in this round since the problems will be solvable, but even tourist will have to think over some of them. :)

With supervision and control from Mikhail Tikhomirov (Endagorion), the problems were developed by: Egor Chunaev (ch_egor), Vasily Alferov (platypus179), Dmitry Sayutin (cdkrot), Timofey Gutor (Tigutor), Maria Fedorkina (crossopt). Mikhail Sorokin (themikemikovi4) and Sergey Aleikin (Derrior) contributed their problem ideas.

We thank Gleb Evstropov (GlebsHP) for his help in preparing the contest, Maria Belova (Delinur) for translating the statements in English, AlexFetisov and winger for testing, and, of course, MikeMirzayanov for unique CodeForces and Polygon systems.

Round will have standard Codeforces rules, with pretests at first, and final tests afterwards. Take care to account for all possible cases.

Best of luck to everyone!

UPD Points for problems are

Div 2. 500-1000-1750-2250-2250, Div 1. 750-1250-1250-2000-2500

UPD Congratulations winners! standings

Div1:

  1. TankEngineer

  2. KAN

  3. Petr

  4. Um_nik

  5. snuke

  6. matthew99

  7. jcvb

  8. superpear

  9. pashka

  10. fsouza

Div2:

  1. mingaleg

  2. Ronnoc

  3. BoQiR

  4. maks1906

  5. zloyplace35

  6. huansuz1

  7. 2016

  8. Danlark

  9. MrPapaya

  10. bohuss

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en15 English Tigutor 2016-01-16 20:08:07 73
ru11 Russian Tigutor 2016-01-16 20:07:31 65
ru10 Russian Tigutor 2016-01-16 01:46:05 57
en14 English Tigutor 2016-01-14 23:43:06 716
ru9 Russian Tigutor 2016-01-14 23:42:29 740
en13 English Tigutor 2016-01-14 18:18:25 111 Tiny change: 'ms are**\n**Div 2.' -> 'ms are**\n\n**Div 2.'
ru8 Russian Tigutor 2016-01-14 18:16:40 99
en12 English Tigutor 2016-01-14 17:12:41 30
ru7 Russian Tigutor 2016-01-14 17:12:18 30
en11 English Tigutor 2016-01-14 17:10:45 72
ru6 Russian Tigutor 2016-01-14 17:09:57 75
en10 English Tigutor 2016-01-13 07:40:25 2
en9 English Tigutor 2016-01-13 07:38:49 882
en8 English Tigutor 2016-01-13 07:17:22 99
en7 English Tigutor 2016-01-12 22:02:31 12 Tiny change: 'translate problems in Engli' -> 'translate statements in Engli'
en6 English Tigutor 2016-01-12 20:59:02 52
ru5 Russian Tigutor 2016-01-12 20:58:35 89
en5 English Tigutor 2016-01-12 20:51:46 0 (published)
en4 English Tigutor 2016-01-12 20:51:06 15 Tiny change: 'ed: [user:themikemikovi4,2016-01-1' -> 'ed: [user:Derrior,2016-01-1'
ru4 Russian Tigutor 2016-01-12 20:50:33 15 Мелкая правка: 'кин([user:themikemikovi4,2016-01-1' -> 'кин([user:Derrior,2016-01-1'
en3 English Tigutor 2016-01-12 20:37:25 26 Tiny change: '016-01-12].\n\nSpec' -> '016-01-12], [user:MF2000].\n\nSpec'
ru3 Russian Tigutor 2016-01-12 20:36:45 45 Мелкая правка: '16-01-12]).\n\nОтдель' -> '16-01-12]), Мария Федоркина ([user:MF2000])\n\nОтдель'
en2 English Tigutor 2016-01-12 19:16:35 11
ru2 Russian Tigutor 2016-01-12 19:16:19 2 Мелкая правка: 'привет! \nЧерез дв' -> 'привет! \n\nЧерез дв'
en1 English Tigutor 2016-01-12 19:15:35 995 Initial revision for English translation
ru1 Russian Tigutor 2016-01-12 18:52:39 1408 Первая редакция (сохранено в черновиках)