UVA11928 The Busy Dog

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=229&page=show_problem&problem=3079 [PDF](https://uva.onlinejudge.org/external/119/p11928.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11928/07c73b646c766401978a503a2e26ed7a28c39655.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11928/5505fb307e7a5c6bb1a916486f84a13b43419ad2.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11928/70e6cd7091bb926e27ae95b759fc2311e9498083.png)