UVA10757 Interpreting SQL

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=19&page=show_problem&problem=1698 [PDF](https://uva.onlinejudge.org/external/107/p10757.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10757/22961f18d003e066930fd4ae78217192c5dc0216.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10757/16c9af5e229465f2e5414020da8fcc378f1de6a3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10757/6d5e80e111b774944c162e71c53b4639dbe27f00.png)