atcoder_official's blog

By atcoder_official, history, 4 weeks ago, In English

We will hold UNIQUE VISION Programming Contest 2026 Summer (AtCoder Regular Contest 226).

We are looking forward to your participation!

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4 weeks ago, hide # |
 
Vote: I like it +32 Vote: I do not like it

Reading the statement of E is a kind of cruel torture for everyone I think, including native English/Japanese speakers. It's AHC-like.

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4 weeks ago, hide # |
 
Vote: I like it +17 Vote: I do not like it

Attention Is All You Need

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

I got AB and-40.The C is so trash that dfs+empty,and I don't want to dfs and fucked.

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4 weeks ago, hide # |
Rev. 3  
Vote: I like it +26 Vote: I do not like it

For D, if we had infinite queues, then are there any asymptotic bounds for the total moves? I think it's nlogn but that's just a guess for the lower bound, since we can potentially sort the elements using it and each comparision mostly leads to a move.

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    4 weeks ago, hide # ^ |
    Rev. 2  
    Vote: I like it 0 Vote: I do not like it

    More on this, the nlogn bound is achievable, you can simulate a merge sort using logn queues.ig you can also approximately proof it by keeping a exponentail threshold for making elements go from one queue to another.

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4 weeks ago, hide # |
 
Vote: I like it +32 Vote: I do not like it

Why the hell was my first ARC contest such garbage?!

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

When I saw the "Visualizer" on the browser page of problem E, I doubt if I accidentally went the AHC

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

Although the problem E is crazy, I think it's really a fun problem.