``` import java.util.ArrayList; import java.util.Arrays; import java.util.List; /** * Source : https://oj.leetcode.com/problems/flatten-binary-tree-to
Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 click to show hints. Hints: If you notice carefully in the flattened tree, each node's right child points ...
题目 Given a binary tree, flatten it to a linked list in-place. For example, given the following tree: 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 题目大意 给定一个二叉树,原地将它展开为链表。 解题思路 要求把二叉树“打平”,按照先...
* Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class Solution { public: void flatten(TreeNode* root) { if(!root)return; flatten(root->left); flatt...
Given a binary tree, flatten it to a linked list in-place. For example, Given 代码语言:javascript 代码运行次数:0 运行 AI代码解释 1/\25/\ \346 The flattened tree should look like: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees of every node never differ by more than 1.Example...
tree The flattened tree should look like: flattened click to show hints. Hints: If you notice carefully in the flattened tree, each node's right child points to the next node of a pre-order traversal. Solution DFS 平凡的写法。注意要将root的左右节点置为null,再向下面递归!否则下面的递归会改...
http://bangbingsyb.blogspot.com/2014/11/leetcode-flatten-binary-tree-to-linked.html ** 总结: pre order tree ** Anyway, Good luck, Richardo! My code: /** * Definition for a binary tree node. * public class TreeNode { * int val; ...
linked list into a data structure that offers the same running time as the more complex self-balancing tree data structures. As we'll see, the skip list works its magic by giving each element in the linked list a random "height." In the latter part of the article, we'll be building ...
linked list into a data structure that offers the same running time as the more complex self-balancing tree data structures. As we'll see, the skip list works its magic by giving each element in the linked list a random "height." In the latter part of the article, we'll be building ...