atcoder_official's blog

AtCoder Beginner Contest 464 Announcement
By atcoder_official, history, 2 months ago, In English

We will hold Japanese Student Championship 2026 -Advance- Qualification (AtCoder Beginner Contest 464).

We are looking forward to your participation!

  • Vote: I like it
  • -27
  • Vote: I do not like it

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2 months ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

this will be my first contest on atcoder.

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2 months ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

hope no mo's algorithm

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2 months ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

I am so nervous

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2 months ago, hide # |
 
Vote: I like it -8 Vote: I do not like it

Hope no 2D prefix sums

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2 months ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

Locking in !

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2 months ago, hide # |
 
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Hope no probability problem

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2 months ago, hide # |
 
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JRYCB

YJYCB

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2 months ago, hide # |
 
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E:why not two-dimensional segment tree?

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2 months ago, hide # |
 
Vote: I like it +21 Vote: I do not like it

A typing speed competition.

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2 months ago, hide # |
← Rev. 2  
Vote: I like it 0 Vote: I do not like it

I solved E in a simpler way

Spoiler

edit: seems like Rssll_Krkgrd also came up with a solution like me :D

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2 months ago, hide # |
 
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did only 3

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2 months ago, hide # |
 
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This is my first lost rating contest:(

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2 months ago, hide # |
 
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why E can be solved with O(Q * min(H,W))???Since there is a user edtiorial with O(QH),I think the contest is not really good.

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2 months ago, hide # |
 
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Are there going to be English editorials for problems A through C? I didn't get an AC on C until after the contest and I didn't use the way I've heard other people do it. Can other people explain how they solved C?

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