UVA548 树 Tree

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=7&page=show_problem&problem=489 [PDF](https://uva.onlinejudge.org/external/5/p548.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA548/78473d26dddbe5f8314b7aac17e37af6d9c18840.png)

Input Format

N/A

Output Format

N/A