triple__a's blog

By triple__a, history, 8 months ago, In English

Hope you enjoy those tasks!

1332A - Прогулка

Tutorial
Solution (python by pikmike)
Solution (C++)

1332B - Непростая покраска

Tutorial
Solution (python by pikmike)
Solution (C++)

1332C - K-полное слово

Tutorial
Solution(python by pikmike)
Solution(C++)

1332D - Прогулка по матрице

Tutorial
Solution(python by pikmike)

1332E - Все высоты равны

Tutorial
Solution 1(python by pikmike)
Solution 2(python by pikmike)

1332F - Независимое множество

Tutorial
Solution(C++)

1332G - Без монотонных троек

Contributor of idea of the solution: pikmike

Tutorial
Solution (C++)

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Tutorial of div2 B-C #1
 
 
 
 
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By triple__a, history, 8 months ago, In English

Hello Codeforces!

I am glad to invite you to my first official round Codeforces Round #630 (Div. 2), which will take place on 31.03.2020 16:35 (Московское время) (please note for the unusual starting time) and will be rated for all Division 2 participants.

You will be given 7 tasks and 150 minutes to solve them.

All tasks in this round were prepared by me. Hope that you will enjoy those tasks!

I would like to thank:

To avoid queueforces, we will provide small amount but strong (hope so) pretests for first few tasks. Hope it works!

Score distribution will be announced later.

Good luck and have fun!

UPD1: Score distribution: 500-1000-1250-1250-1750-2250-3000

UPD2: Contest is over, and here is the editorial.

UPD3:

I am sorry that pretests were not as strong as I excepted.

Congratulations to the winners:

div1+div2:

  1. vepifanov

  2. xyz32768

  3. PinkRabbit

  4. 300iq

  5. nuip

div 2:

  1. xyz32768

  2. sorry_to_tourist

  3. camilla

  4. jerome_wei

  5. [user: _dawn]

people who were first to solve each task:

A: wangjunrui

B: MagentaCobra

C: okwedook

D: wangjunrui

E: GsjzTle

F: yooooooooo

G: GoGooLi

Lastly, thanks to Handsome2004 for the brilliant hack of E.

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