UVA10643 Facing Problem With Trees

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=18&page=show_problem&problem=1584 [PDF](https://uva.onlinejudge.org/external/106/p10643.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10643/a6a74e3fc68de1242453cb9a0248066b44c1c132.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10643/978018373d3058fe5cc47c5432b8ff504c69d609.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10643/9039e5558e45774d4fc3f6831f43d18b13e6b2cc.png)