UVA10992 The Ghost of Programmers

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=21&page=show_problem&problem=1933 [PDF](https://uva.onlinejudge.org/external/109/p10992.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10992/6c067c1949cb135b89ddbcdcb5bf457bedd4fc62.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10992/3db5b4e88a52055c3c830406ea4a7aaf5178dd06.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10992/267d3824a19cdf03b7c1f27d46ad7e234813c427.png)