原题链接在这里：https: leetcode.com problems flatten a multilevel doubly linked list description 题目： You are given a doubly linked list which in addition to the next and previous pointers, it could have a chi ...
2018-09-06 07:36 0 875 推荐指数：
You are given a doubly linked list which in addition to the next and previous pointers, it could have a child pointer, which may or may not point ...
原题地址：http://oj.leetcode.com/problems/flatten-binary-tree-to-linked-list/ 题意： Given a binary tree, flatten it to a linked list in-place. ...
题目： Given a binary tree, flatten it to a linked list in-place. For example, Given The flattened tree should look like: 1 TreeNode ...
Given a binary tree, flatten it to a linked list in-place. For example,Given The flattened tree should look like: If you notice carefully ...
看起来很难，但是仔细想一下，实质就是二叉树的中序遍历的问题，中序遍历有递归和非递归(至少两种写法)。 递归： 非递归 Divide a ...
Given a binary tree, flatten it to a linked list in-place. For example,Given The flattened tree should look like: click to show hints. ...
Convert a BST to a sorted circular doubly-linked list in-place. Think of the left and right pointers as synonymous to the previous and next ...
原题地址：http://oj.leetcode.com/problems/linked-list-cycle/ 题意：判断链表中是否存在环路。 解题思路：快慢指针技巧，slow指针和fast指针开始同时指向头结点head，fast每次走两步，slow每次走一步。如果链表不存在环，那么fast ...
