UVA908 Re-connecting Computer Sites

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=11&page=show_problem&problem=849 [PDF](https://uva.onlinejudge.org/external/9/p908.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA908/fb35e77c88b098c7f81fdb76a27bd877c92065e6.png)

Input Format

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Output Format

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