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搜索关键字:preorder traversal    ( 1851个结果
LeetCode 106. Construct Binary Tree from Inorder and Postorder Traversal 由中序和后序遍历建立二叉树 C++
Given inorder and postorder traversal of a tree, construct the binary tree. Note:You may assume that duplicates do not exist in the tree. For example, ...
分类:编程语言   时间:2019-04-15 23:23:39    阅读次数:214
leetcode 145. Binary Tree Postorder Traversal
I never tried before to implement postorder traversal of binary tree with non recursive method. So the ugly handwork is attached below. But In the dis ...
分类:其他好文   时间:2019-04-14 20:38:47    阅读次数:143
103. Binary Tree Zigzag Level Order Traversal
树的蜿蜒型层次遍历 要求第一层从左向右,第二层从右向左...依次类推 和102题无本质区别,加一个翻转指示器即可 ...
分类:其他好文   时间:2019-04-13 17:36:52    阅读次数:139
判断对称二叉树 python代码
对称二叉树的含义非常容易理解,左右子树关于根节点对称,具体来讲,对于一颗对称二叉树的每一颗子树,以穿过根节点的直线为对称轴,左边子树的左节点=右边子树的右节点,左边子树的右节点=左边子树的左节点。所以对称二叉树的定义是针对一棵树,而判断的操作是针对节点,这时可以采取由上到下的顺序,从根节点依次向下判 ...
分类:编程语言   时间:2019-04-09 20:40:48    阅读次数:245
94. Binary Tree Inorder Traversal(非递归实现二叉树的中序遍历)
Given a binary tree, return the inorder traversal of its nodes' values. Example: Follow up: Recursive solution is trivial, could you do it iteratively ...
分类:其他好文   时间:2019-04-08 15:44:17    阅读次数:113
03-树3 Tree Traversals Again (25 分)
An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, suppose that when a 6-node binary tree (with the ...
分类:其他好文   时间:2019-04-08 13:41:11    阅读次数:116
[Algorithm] Construct String from Binary Tree
You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be rep ...
分类:其他好文   时间:2019-04-06 22:50:34    阅读次数:128
二叉树
题目: 1.binary tree preorder traversal 2.maximum depth of binary tree 3.balanced binary tree 4.binary tree maximum path sum 5.lowest common ancestor 6.b ...
分类:其他好文   时间:2019-04-06 19:05:08    阅读次数:101
leetcode 589. N叉树的前序遍历(N-ary Tree Preorder Traversal)
[TOC] 题目描述: 给定一个 N 叉树,返回其节点值的 前序遍历 。 例如,给定一个 : 返回其前序遍历: 。 说明: 递归法很简单,你可以使用迭代法完成此题吗? 解法: ...
分类:其他好文   时间:2019-03-26 15:25:14    阅读次数:160
二叉搜索树与双向链表
public class Solution { public static TreeNode Convert(TreeNode pRootOfTree) { TreeNode p = pRootOfTree; TreeNode q = null; if(p!=null){ LinkedList<Tr ...
分类:其他好文   时间:2019-03-18 01:44:57    阅读次数:188
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