UVA11929 Ambiguous Forests

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=229&page=show_problem&problem=3080 [PDF](https://uva.onlinejudge.org/external/119/p11929.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11929/5d57d878f91849923841701d99972c2e54bb4155.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11929/10b9b521eb5c821be9d07d665bc9890f9f09ad06.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11929/f3fd6044f1c27524c8e746d1835a124acddb66ae.png)