E869120's blog

Square869120Contest #4 in Atcoder
By E869120, history, 7 years ago, In English

Square869120Contest #4 will be held on Sunday (4/ 9) 11:00 UTC. (20:00 JST / 14:00 MSK)

About Square869120Contest
・This contest is unofficial.
・Square869120Contest has been held 3 times before, and this is the 4th contest of Square869120Contest.

About Contest
・The contest are prepared by 9-th grade students, E869120 and square1001.
・Let's participate and enjoy!

Information
・Time: April 9th (Sunday), 20:00 JST (11:00 UTC)
・Duration: 200 minutes (3 hours 20 minutes)
・Number of Tasks: 8 Problems
・Writer: E869120 and square1001
・Rated: No [unrated]
・Language: Japanese / English
・This contest has many partial points, so if you can't get perfect score, you can get many partial points!

Past Square869120Contests
・Square869120Contest #3 (English / Japanese)
・Square869120Contest #2 (Japanese)
・Square869120Contest #1 (Japanese)

Update: The penalty of WA / TLE (or something unsuccessful submission except Compile Error), changed from 10 min to 0 min, so you don't have to worry about WA penalty!

  • Vote: I like it
  • +50
  • Vote: I do not like it

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7 years ago, # |
  Vote: I like it +30 Vote: I do not like it

9th grade students and on the verge of becoming purple! Respect. Out of curiosity, when did you start with all this and any training?

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    7 years ago, # ^ |
      Vote: I like it +26 Vote: I do not like it

    Actually, I'm not blue (really Yellow: E869120's rating is 1545 in topcoder, and 2303 in atcoder) E869120-in-Atcoder
    I started competing in programming competitions in November 2015, about 1.5 years ago.
    And I practiced in Atcoder, Topcoder SRM, and Codeforces.
    I practice about 4 hours on weekday, and 9 hours on weekend on average. And sometimes, I make problems.
    Sorry to my poor English.

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      7 years ago, # ^ |
      ← Rev. 2   Vote: I like it -17 Vote: I do not like it

      Additionally, when I made contest s8pc-1 with E869120, I was a green/blue border coder in topcoder. So it was a challenging experience but we couldn't make good (but it is not bad! / It can't win to AGC problems because the quality is very very high) problems like s8pc-3 (But problem H is a good and difficult)
      First time (s8pc-1), kyuridenamida and snuke helped for s8pc-1 as testers, but on s8pc-2 the testers are each other.

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7 years ago, # |
  Vote: I like it -9 Vote: I do not like it

Auto comment: topic has been updated by E869120 (previous revision, new revision, compare).

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7 years ago, # |
  Vote: I like it -6 Vote: I do not like it

Reminder: Contest will start 3 days later.

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7 years ago, # |
  Vote: I like it -6 Vote: I do not like it

Auto comment: topic has been updated by E869120 (previous revision, new revision, compare).

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7 years ago, # |
← Rev. 2   Vote: I like it -6 Vote: I do not like it

Penalty time was changed! See update on my blog.

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7 years ago, # |
← Rev. 2   Vote: I like it -12 Vote: I do not like it

Contest starts in a day. I'm looking forward to your participation.

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7 years ago, # |
← Rev. 2   Vote: I like it -9 Vote: I do not like it

Reminder!!!!! This contest will start 24 hours later. (Updated at 04/08 11:47 UTC)

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7 years ago, # |
  Vote: I like it +14 Vote: I do not like it

Otsukaresama! Really unbelievable achievement for junior high student.

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7 years ago, # |
  Vote: I like it +7 Vote: I do not like it

"The penalty of WA / TLE (or something unsuccessful submission except Compile Error), changed from 10 min to 0 min, so you don't have to worry about WA penalty!"

The contest page hasn't been updated.

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    7 years ago, # ^ |
    ← Rev. 3   Vote: I like it -10 Vote: I do not like it

    I'm sorry to have kept you waiting. The contest page has been updated. (updated at 04/09 02:30 UTC)

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7 years ago, # |
  Vote: I like it -13 Vote: I do not like it

The Contest will start about 2 hours later. (updated at 04/09 08:40 UTC)
Let's enjoy!!!!!!!!!!!
Link: https://s8pc-4.contest.atcoder.jp/

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7 years ago, # |
  Vote: I like it +10 Vote: I do not like it

Problems are really nice and challenging :) Editorial?

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7 years ago, # |
  Vote: I like it +15 Vote: I do not like it

Thanks for making such a nice contest.By the way,it seems that you didn't sort the problems by their difficulty:)

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