1.题目描述 2.问题分析 要遍历图,然后标记没有被复制的节点. 3.代码 class Solution { private: unordered_map<Node*, Node*> m; public: Node* cloneGraph(Node* node) { if (node == NULL) return NULL; Node *copy = new Node(node->val, {}); queue<Node*> q; m[node] = copy; q.pus…

Clone Graph Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for each node, and , as a separator for node label an…

Problem link: http://oj.leetcode.com/problems/clone-graph/ This problem is very similar to "Copy List with Random Pointer", we need a hash map to map a node and its clone. The algorithm is 2-pass procedure as follows. CLONE-GRAPH(GraphNode node)…

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 DFS BFS 日期 题目地址:https://leetcode.com/problems/clone-graph/ 题目描述 Given a reference of a node in a connected undirected graph, return a deep copy (clone) of the graph. Each node…

题目如下: Given the head of a graph, return a deep copy (clone) of the graph. Each node in the graph contains a label (int) and a list (List[UndirectedGraphNode]) of its neighbors. There is an edge between the given node and each of the nodes in its neig…

Clone Graph题解 原创文章,拒绝转载 题目来源:https://leetcode.com/problems/clone-graph/description/ Description Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uni…

Leetcode之广度优先搜索(BFS)专题-133. 克隆图(Clone Graph) BFS入门详解:Leetcode之广度优先搜索(BFS)专题-429. N叉树的层序遍历(N-ary Tree Level Order Traversal) 给定无向连通图中一个节点的引用,返回该图的深拷贝(克隆).图中的每个节点都包含它的值 val(Int) 和其邻居的列表(list[Node]). 示例: 输入: {"$id":"1","neighbors&quo…

/** * Definition for singly-linked list with a random pointer. * struct RandomListNode { * int label; * RandomListNode *next, *random; * RandomListNode(int x) : label(x), next(NULL), random(NULL) {} * }; */ class Solution {//为了可以高速定位某个节点,採用确定性映射的方式,将…

Clone GraphClone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization:Nodes are labeled uniquely. We use # as a separator for each node, and , as a separator for node label and…

Clone Graph Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for each node, and , as a separator for node label an…