UVA11334 Antenna in the Cinoc Mountains

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=25&page=show_problem&problem=2309 [PDF](https://uva.onlinejudge.org/external/113/p11334.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11334/f87843256e262e0910c7cafd1681be47044dacb2.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11334/67cbafbc1c0dbbe4e9da653e73be93deeb9be8bb.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11334/d0b10b16bcb0940c01147044c3581fbf79efd530.png)