Codeforces Round #520

Revision en9, by JATC, 2018-11-13 19:35:44

Hi everyone. I'm glad to announce that the Codeforces Round 520 (Div. 2) will be held on 14.11.2018 18:35 (Московское время).

The round will be rated for Div 2 participants (whose ratings are lower than 2100). However, all the other participants can compete as well, without worrying about ratings being changed.

You will be given 2 hours to solve 6 problems. It's better to read all the problems. The scoring distribution will be announced soon before the contest starts.

All the problems were prepared by myself, with some help from my friend GiraffeCoder. I want to thank cdkrot for coordinating me in preparing the problems, vintage_Vlad_Makeev, isaf27 and demon1999 for testing my solutions. I also want to thank csacademy for their graph editor tool. You can check it out at this link.

This is the first round I propose. I put a lot of work into it so I hope that you will enjoy it (smiley face).

Wish you do your best and get a high rating!

Update 1: If you want to discuss about the problems after the contest, here is the link to the CP Community on Discord. Please make sure that you don't give the solutions to other participants during the contest.

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en13 English JATC 2018-11-18 17:53:38 32
en12 English JATC 2018-11-14 22:41:13 173
en11 English JATC 2018-11-14 22:37:02 601 Tiny change: 'cipants:\n1. [user' -> 'cipants:\n\n1. [user'
en10 English JATC 2018-11-14 17:43:06 99
en9 English JATC 2018-11-13 19:35:44 263 Tiny change: 'munity on Điscord. Pl' -> 'munity on Discord. Pl'
en8 English JATC 2018-11-12 21:04:19 5 Tiny change: '\nThis is my first rou' -> '\nThis is the first rou'
en7 English JATC 2018-11-12 20:57:58 0 (published)
en6 English JATC 2018-11-12 20:54:17 115
en5 English JATC 2018-11-12 20:48:28 5 Tiny change: 'ose rating lower tha' -> 'ose ratings are lower tha'
en4 English JATC 2018-11-12 20:48:05 169
en3 English JATC 2018-11-12 20:42:02 22 Tiny change: 't out at [Your text to link here...](https://' -> 't out at [this link](https://'
en2 English JATC 2018-11-12 20:41:14 458
en1 English JATC 2018-11-12 20:28:52 384 Initial revision (saved to drafts)