UVA11710 Expensive subway

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=117&page=show_problem&problem=2757 [PDF](https://uva.onlinejudge.org/external/117/p11710.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11710/5483395fea1114bc5a5e031a31c23b5dbb91bba4.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11710/82f77a0555c9cbe698fed6c2030fbc8f43f8b5c3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11710/83cdf4a778070798b75504639ea7a45b14536002.png)