UVA419 Matching Meetings

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=6&page=show_problem&problem=360 [PDF](https://uva.onlinejudge.org/external/4/p419.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA419/bd495ff4a683c7592b7ba08f9c38f41d5ebca1c0.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA419/877e29a543bd5890dbaad4488a1e4fa7c3547ee2.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA419/6e4b150e6bc08389516df031fe8ad7cf9a5fb30b.png)