UVA13153 Number of Connected Components

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=871&page=show_problem&problem=5075 [PDF](https://uva.onlinejudge.org/external/131/p13153.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13153/6ff5f5b53f1c8df2b7ce08b8f947e381339f1498.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13153/f5ba26864d456ea4394ba0edf37aca3cf8cfd563.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13153/b1e4f662773cbe35a060e375c43d7902037d87e6.png)