UVA10410 树重建 Tree Reconstruction

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=16&page=show_problem&problem=1351 [PDF](https://uva.onlinejudge.org/external/104/p10410.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10410/ef129ac1b5ca5ee67dc5b5cb0247b5ce9b42f670.png)

Input Format

N/A

Output Format

N/A