代码: 1publicRandomListNode copyRandomList(RandomListNode head) {2if(head==null)3returnnull;4Queue<RandomListNode> q =newLinkedList<RandomListNode>();5q.add(head);6HashMap<RandomListNode,RandomListNode> hm =newHashMap<RandomListNode,RandomListNode>();7RandomListNode headCopy =newRandomListNode(hea...
A binary tree is given such that each node contains an additional random pointer which could point to any node in the tree or null. Return adeep copyof the tree. The tree is represented in the same input/output way as normal binary trees where each node is represented as a pair of[val...
这个题目跟[LeetCode] 133. Clone Graph_ Medium tag: BFS, DFS很像,只是数据结构不一样,但是本质是一样,都是利用一个dictionary去存node 和copynode, 利用DFS. #Definition for Node.#class Node:#def __init__(self, val=0, left=None, right=None, random=None):#self.val = val#self.left = le...