UVA10250 The Other Two Trees

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=14&page=show_problem&problem=1191 [PDF](https://uva.onlinejudge.org/external/102/p10250.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10250/7799f101f338d99e1879fabfd2ac15d634e9e947.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10250/29ea41134ff1eb110215938468e23db009b257ad.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10250/647ea50916469e36623c5074f3ae1bd3956d3a8d.png)