UVA105 The Skyline Problem

Background

【重题请见P1904】

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=41 [PDF](https://uva.onlinejudge.org/external/1/p105.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA105/889bd37f0f1c53beef16050923d5dea72240646d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA105/a2ec38ede793360654026cc6d2ebc8d4ff3613a3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA105/fce0a3209462c25fc24ce11d947d1827d467d35d.png)