UVA924 Spreading The News

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=11&page=show_problem&problem=865 [PDF](https://uva.onlinejudge.org/external/9/p924.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA924/e3df9eaccd0a84db7430a77e2957696e8c6c3b23.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA924/56c43f6ceb242aa879b2335c7154d2cc9a99335f.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA924/514a5089e57338241f3f2c77a9946fdd3b65bcf5.png)