UVA10266 Surveying

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=14&page=show_problem&problem=1207 [PDF](https://uva.onlinejudge.org/external/102/p10266.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10266/e0ee2772286a2f3764862279d320bb887ccafcbe.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10266/0726989a4284f7837c8665a0b86d79ac56cd7ad8.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10266/e6fa277aeb9ed49fd8ce2cebf016befc88954203.png)