UVA11620 City of Egocentrics

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=78&page=show_problem&problem=2667 [PDF](https://uva.onlinejudge.org/external/116/p11620.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11620/ac267616388b3af48073ecef5205b443b1d828c8.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11620/926ae02bd2820a2e218643601afc14cc100a65b5.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11620/2bad0ed36fa51a1ecd14cb6634272301abde8e53.png)