Codeforces Round #633

Revision en15, by McDic, 2020-04-10 15:18:16

내가 돌아왔다! (Hello, Codeforces!)

I am thrilled to introduce you to Codeforces Round #633. Followings are basic information:

  • This contest will take place on Apr/12/2020 17:05 (Moscow time).
  • The round is rated for all participants who can understand this announcement. There will be two divisions.
  • There are 5 problems in each division and you will have 2 hours to solve it.
  • Score distribution will be announced later.

Followings are contributors:

Followings are some fun things:

  • antontrygubO_o is the most intense coordinator I have ever met. He rejected lots of my problems. Some example of rejection comments are below:
    • This problem is too standard.
    • Don't ask people about theorem and formula.
    • This problem is appeared in recent ptz camp with higher constraints.
    • I don't like it.
    • Rock Scissor Paper makes statement messy, because some people don't know about it.
    • D2A should be easier than this one.
    • I've found generalized version of this problem in POI.
    • Isn't this obvious?
    • Your proof is wrong.
    • This problem is not very interesting.
    • This is too (censored).
  • After lots of rejections, I tried my best to make problems to be interesting. I hope you like at least some of my problems.
  • This round was originally supposed to be rated for Div.2 only. However, after we completed Phase 1 testing, we found that my round is too hard for Div.2, so we added more problems and made this round to be Div.1.
  • In this round, statements will be even shorter than last contest.
  • Even for some of problems which my coordinator approved, there were critical issues that made problems to be excluded. I will introduce some of my rejected problems which won't be used anymore in another post, after this contest ends.

I hope everyone can enjoy my third contest. Thanks in advance!

Tags mcdic


  Rev. Lang. By When Δ Comment
en19 English McDic 2020-04-13 18:28:59 28 Tiny change: 'ld Div1A. Anton loved this problem, but since w' -> 'ld Div1A. But since w'
en18 English McDic 2020-04-13 13:21:22 544
en17 English McDic 2020-04-12 20:06:08 955
en16 English McDic 2020-04-11 20:16:44 136
en15 English McDic 2020-04-10 15:18:16 35 Tiny change: '020-04-10]\n- **CF ' -> '020-04-10], [user:MrDecomposition]\n- **CF '
en14 English McDic 2020-04-10 12:58:04 4 Tiny change: 'zuyu_chou,2020-04-10] (Div1E)\' -> 'zuyu_chou,] (Div1E)\'
en13 English McDic 2020-04-10 12:57:19 49 Tiny change: ' Following are basic' -> ' Followings are basic'
en12 English McDic 2020-04-10 07:43:49 69
en11 English McDic 2020-04-10 07:39:03 1 Tiny change: 'nFollowing are some ' -> 'nFollowings are some '
en10 English McDic 2020-04-10 07:35:12 43
en9 English McDic 2020-04-10 07:34:07 127
en8 English McDic 2020-04-10 07:30:45 2 Tiny change: 'e some funny things th' -> 'e some fun things th'
en7 English McDic 2020-04-10 07:30:21 29 Tiny change: 'ouncement.\n- There' -> 'ouncement. There will be two divisions.\n- There'
en6 English McDic 2020-04-10 07:28:56 0 (published)
en5 English McDic 2020-04-10 07:28:02 128
en4 English McDic 2020-04-10 07:25:33 2894 Tiny change: 'user:McDic,2020-04-10] (All Div' -> 'user:McDic] (All Div'
en3 English McDic 2020-04-10 07:05:15 752
en2 English McDic 2020-04-09 21:49:05 544 Tiny change: '가 돌아왔다!_ ()' -> '가 돌아왔다!_ (Hello, Codeforces!)'
en1 English McDic 2020-04-09 21:42:17 34 Initial revision (saved to drafts)