2018-09-24 12:01:38 问题描述: 问题求解: 毫无疑问的一条非常好的题目,采用的解法是逆向的BFS,也就是从叶子节点开始遍历,逐步向中心靠拢,最终留下的叶子节点就是答案. public List<Integer> findMinHeightTrees(int n, int[][] edges) { // tricks :使用Collections.singletonList(0)可以直接返回单个值的List if (n == 1) return Collections.sin…

2018-09-24 12:01:38 问题描述: 对于一个具有树特征的无向图,我们可选择任何一个节点作为根.图因此可以成为树,在所有可能的树中,具有最小高度的树被称为最小高度树.给出这样的一个图,写出一个函数找到所有的最小高度树并返回他们的根节点. 格式 该图包含 n 个节点,标记为 0 到 n - 1.给定数字 n 和一个无向边 edges 列表(每一个边都是一对标签). 你可以假设没有重复的边会出现在 edges 中.由于所有的边都是无向边, [0, 1]和 [1, 0] 是相同的,因此不…

For an undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height are called minimum height trees (MHTs). Given such a graph, writ…

For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height are called minimum height trees (MHTs). Given such a graph, write…

For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height are called minimum height trees (MHTs). Given such a graph, write…

For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height are called minimum height trees (MHTs). Given such a graph, write…

For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height are called minimum height trees (MHTs). Given such a graph, write…

For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height are called minimum height trees (MHTs). Given such a graph, write…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 BFS 相似题目 参考资料 日期 题目地址:https://leetcode.com/problems/minimum-height-trees/description/ 题目描述 For a undirected graph with tree characteristics, we can choose any node as the root.…

原题链接在这里:https://leetcode.com/problems/minimum-height-trees/ 题目: For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height a…