https://shio-chan-dev.github.io/jeanblog/zh/tags/leetcode-547/Recent content in LeetCode 547 on Jeanphilo BlogHugo -- 0.163.3zh-cnWed, 27 May 2026 00:00:00 +0800https://shio-chan-dev.github.io/jeanblog/zh/alg/leetcode/hot100/547-number-of-provinces/Wed, 27 May 2026 00:00:00 +0800https://shio-chan-dev.github.io/jeanblog/zh/alg/leetcode/hot100/547-number-of-provinces/从邻接矩阵的直接连接关系出发，把 LeetCode 547 省份数量转成无向图连通分量计数问题，再逐步推出 DFS、BFS 和并查集解法。