solution.tex

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\date{\today}
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\title{$\mathcal Problem$}
\author{$\mathcal Pyh$}

\begin{document}

\maketitle

%\kai

\song

\begin{problem}
  Royal Questions\footnote{Codeforces 875F}

  给出一个$n$个点的二分图，左边每个点都与右边两个点有权值相同的边，求最优匹配。

  $n\leq 200000$。
\end{problem}

\end{document}