atcoder_official's blog

AtCoder Regular Contest++ 228 Announcement
By atcoder_official, history, 4 weeks ago, In English

We will hold AtCoder Regular Contest++ 228.

We are looking forward to your participation!

  • Vote: I like it
  • -26
  • Vote: I do not like it

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4 weeks ago, hide # |
 
Vote: I like it +4 Vote: I do not like it

Hope I can accept A!

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3 weeks ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

This was my first ARC. I only solved one problem after a long time, are all ARC this hard?

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3 weeks ago, hide # |
 
Vote: I like it +59 Vote: I do not like it

I hate permutations.

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3 weeks ago, hide # |
 
Vote: I like it +31 Vote: I do not like it

damn A is toooooooo hard

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3 weeks ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

what was that !!!

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3 weeks ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

B<<<<<<A

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3 weeks ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

Although problem A shouldn't be at A, it's an excellent problem!

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3 weeks ago, hide # |
 
Vote: I like it -20 Vote: I do not like it

The contest is not competing about who's better at CP, but about who can solve B faster. The one ranked 77 who solved only B gets 2592 perf. The one ranked 506 who also solved only B, gets only 1623 perf.

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3 weeks ago, hide # |
 
Vote: I like it +14 Vote: I do not like it

Please consider making ARC (or at least ARC++) rated for everybody with rating [1600, INF). The problems are clearly challenging enough.

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3 weeks ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

A is very challenging. I was stuck on the case that "P(i)=Q(i)" and didn't realize that we can tag the numbers 0/1 and for all of the tags do the count. Nice problem!

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3 weeks ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

It was too difficult for me to FINISH A

My AT rating is less than 500

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