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[問題案]General Matching(general_matching) #77

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yosupo06 opened this issue Sep 24, 2019 · 10 comments
Open

[問題案]General Matching(general_matching) #77

yosupo06 opened this issue Sep 24, 2019 · 10 comments
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@yosupo06 yosupo06 commented Sep 24, 2019

制約

// O(V^3), O(VE), O(VE log V)?

  • 1 <= N <= 300
  • 1 <= M <= N(N - 1) / 2

// O(E sqrt V)

  • 1 <= N <= 100,000
  • 1 <= M <= 100,000
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@yosupo06 yosupo06 commented Sep 24, 2019

計算量によって実装量がかわり過ぎるのをどうするか

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@yosupo06 yosupo06 commented Sep 25, 2019

@yosupo06 yosupo06 added this to 精査待ち in 問題リスト Sep 25, 2019
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@yosupo06 yosupo06 commented Oct 17, 2019

O(V^3)でとりあえず作る

@yosupo06 yosupo06 self-assigned this Oct 17, 2019
@yosupo06 yosupo06 moved this from 精査待ち to 作業待ち in 問題リスト Oct 19, 2019
@yosupo06 yosupo06 closed this Oct 19, 2019
問題リスト automation moved this from 作業待ち to 作成済み Oct 19, 2019
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@yosupo06 yosupo06 commented Oct 23, 2019

https://judge.yosupo.jp/submission/987 嘘解法が通っている(ランダムケースだけだからね…)

@yosupo06 yosupo06 reopened this Oct 23, 2019
問題リスト automation moved this from 作成済み to 作業待ち Oct 23, 2019
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@potetisensei potetisensei commented Nov 14, 2019

強い(らしい)乱択が落ちるケースが試行回数低いと落ちるケースが入ってる(らしい)ジャッジ:

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@yosupo06 yosupo06 commented Nov 14, 2019

激 Love

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@potetisensei potetisensei commented Nov 14, 2019

上のも含めて大体ソースはCFです。
http://acm.math.spbu.ru/~sk1/courses/1718f_au2/conspect/conspect.pdf
↑General Matchingの乱択について書かれていて、乱択で増加路を見つけられる確率が頂点数の指数の逆数オーダー(?)であるようなグラフがあると書かれているが、具体的な例が載っていないため何もわからない(5ページ目、最後)
乱択
http://uoj.ac/submission/233938

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@yosupo06 yosupo06 commented Nov 14, 2019

ありがとうございます! 

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@yosupo06 yosupo06 commented Nov 14, 2019

(ところでロシア語なんですが…><)

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@potetisensei potetisensei commented Nov 15, 2019

いや俺も読めないけど
元のCFの記事貼ったほうがいいですか、割とネタバレになり得るので貼ってなかったんですが

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