UVA11377 Airport Setup

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=25&page=show_problem&problem=2372 [PDF](https://uva.onlinejudge.org/external/113/p11377.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11377/fb0e2eafd16ea1d743ea510d55dc37ce94f9d7d2.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11377/c65bc2c433b6718881528aacde468fb533f670ec.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11377/f630e67f39dae84bc787582e5b162122c7a319c8.png)