稍后再看
https://zhuanlan.zhihu.com/p/35519230 二进制分组
https://en.wikipedia.org/wiki/Prüfer_sequence 树的Prufer序列
https://zhuanlan.zhihu.com/p/56269536 orz \(\color{crimson}D\text{reamoon}\) 从枚举到k短路
\(\LaTeX\) \(\TeX\)
https://zhuanlan.zhihu.com/p/35519230 二进制分组
https://en.wikipedia.org/wiki/Prüfer_sequence 树的Prufer序列
https://zhuanlan.zhihu.com/p/56269536 orz \(\color{crimson}D\text{reamoon}\) 从枚举到k短路
\(\LaTeX\) \(\TeX\)