U547410 [蓝桥杯 2023 省B] 岛屿个数

题目描述

![](https://cdn.luogu.com.cn/upload/image_hosting/4mi9llk5.png)

输入格式

![](https://cdn.luogu.com.cn/upload/image_hosting/kqpd93w8.png)

输出格式

无

说明/提示

![](https://cdn.luogu.com.cn/upload/image_hosting/0lkjdyn6.png) ![](https://cdn.luogu.com.cn/upload/image_hosting/50gnpsq8.png)