岛屿数量200
地址：https://leetcode.cn/problems/number-of-islands
2 docs tagged with "并查集"
View All Tags无向图中连通分量的数目323
地址：https://leetcode.cn/problems/number-of-connected-components-in-an-undirected-graph
地址：https://leetcode.cn/problems/number-of-islands
地址：https://leetcode.cn/problems/number-of-connected-components-in-an-undirected-graph