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Comments (7)

maspypy avatar maspypy commented on May 29, 2024 2

とりあえず案を書きます。辞書順最小とかはなしで。

問題

グラフが与えられる。Eulerian Trail があるか判定し、あれば次の形式で出力せよ。

頂点の列と辺の列という形式(https://judge.yosupo.jp/problem/cycle_detection_undirected)

Yes
v_0 v_1 ... v_n
e_0 e_1 ... e_{n-1}
  • 自己ループ、多重辺はありうる
  • 連結とは限らない
  • 有向・無向で 2 問つくる

from library-checker-problems.

maspypy avatar maspypy commented on May 29, 2024 1

No になる定式化、ありましたっけ。すべての辺を通るものを想定していました。

from library-checker-problems.

maspypy avatar maspypy commented on May 29, 2024

辞書順最小の~が必要になったが、これもやるかどうか。

from library-checker-problems.

noshi91 avatar noshi91 commented on May 29, 2024
  • 孤立点があるときに No になるかどうか

from library-checker-problems.

maspypy avatar maspypy commented on May 29, 2024

作業者募集で。

from library-checker-problems.

maspypy avatar maspypy commented on May 29, 2024

有向・無向のどちらかだけでもよいです。

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maspypy avatar maspypy commented on May 29, 2024

作ります。

予定

  • 作るべきケースがよくわからないので、マルチテストケースにします。
  • $m=0$ も入れます(任意の 1 点 0 辺からなるパスが満たす)
  • $n=0$ は入れません

from library-checker-problems.

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