UVA218 Moth Eradication

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=4&page=show_problem&problem=154 [PDF](https://uva.onlinejudge.org/external/2/p218.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA218/2c99ec0bcb4cacdf792be9f0cdebc05bbdd6a732.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA218/e5d6b73b8a0495e6299ec1212612da80507c999c.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA218/c5d5f834652d7a951c917f3a61636aae687746f9.png)