UVA12148 Electricity

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=243&page=show_problem&problem=3300 [PDF](https://uva.onlinejudge.org/external/121/p12148.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12148/1d520451c7d2b413888f178c8737c52410992d0d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12148/6826f0d174cb906a13423237f2fe854cd3160f2c.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12148/66417761a643e4ad988aa14a57e8518fdcab560b.png)