Rhodoks's blog

By Rhodoks, history, 20 months ago, In English

Sorry for the late editorial. May this editorial help you. If you have questions, feel free to ask.

1711A - Perfect Permutation

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1711B - Party

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1710A - Color the Picture

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1710B - Rain

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1710C - XOR Triangle

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1710D - Recover the Tree

Thank dario2994, the key part of the proof is from him.

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1710E - Two Arrays

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By Rhodoks, 20 months ago, In English

Hello Codeforces!

We are glad to invite you to our Codeforces Round Codeforces Round 810 (Div. 1) and Codeforces Round 810 (Div. 2) which will be held on Jul/24/2022 17:35 (Moscow time). This round will be rated for participants of both divisions. Participants in each division will be offered 5 problems and 2 hours to solve them. The two divisions will share 3 problems.

The problems are prepared by me and zxyoi. We hope that everyone will enjoy this round!

We are sincerely thankful for the help provided by:

We tried our best to have detailed, clear, and short statements. I think that anyone can find some interesting problems in this contest. We suggest to read all the statements.

The score distribution will be announced later.

Wish you good luck and high rating!

UPD

For some reason, we have removed one of our problems. So now participants in each division will be offered 5 problems and 2 hours to solve them.

The score distribution is:

Div2: $$$500-1000-1500-2000-3000$$$

Div1: $$$500-1000-1750-2000-2750$$$

We have some more testers now, let's thank them!

UPD2

We adjusted our score distribution slightly.

UPD3: the Div. 1 part of the round is declared unrated.

UPD4

Sorry for the late editorial.

UPD5

Congratulate to winners:

Div1

  1. nantf

  2. ko_osaga

  3. Rebelz

  4. The_Noble_Brahman_Bison

  5. VivaciousAubergine

Div2

  1. csyakuoi

  2. Linkus

  3. yaoxi

  4. RGB_ICPC1

  5. bajablast

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