题目描述:
A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.
Return a deep copy of the list.
题目大意:
给定一个链表,其中的节点包含一个额外的随机指针,可能指向链表中的任意一个节点或者为空。
返回链表的深拷贝。
解题思路:
解法I ...