UVA11208 Airplane Scheduling

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2149 [PDF](https://uva.onlinejudge.org/external/112/p11208.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11208/0ee5bd0debec1ec7d548e115885bcebaf0704d2a.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11208/2c1d85cd227e22c1d86b962ca6198511af54e7be.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11208/6077621b0b94f56aaad9cdeca46cc2b8dafbe2d7.png)