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LeetCode 105. Construct Binary Tree from Preorder and Inorder Traversal
Given preorder and inorder traversal of a tree, construct the binary tree. Note:You may assume that duplicates do not exist in the tree. For example, ...
分类:其他好文   时间:2018-06-22 22:46:40    阅读次数:233
105. Construct Binary Tree from Preorder and Inorder Traversal
问题描述: Given preorder and inorder traversal of a tree, construct the binary tree. Note:You may assume that duplicates do not exist in the tree. For exa ...
分类:其他好文   时间:2018-06-12 10:28:27    阅读次数:204
1138 Postorder Traversal (25)
Suppose that all the keys in a binary tree are distinct positive integers. Given the preorder and inorder traversal sequences, you are supposed to out ...
分类:其他好文   时间:2018-06-06 01:02:16    阅读次数:161
[LeetCode] Verify Preorder Serialization of a Binary Tree
One way to serialize a binary tree is to use pre-order traversal. When we encounter a non-null node, we record the node's value. If it is a null node, ...
分类:其他好文   时间:2018-06-04 14:12:08    阅读次数:123
5.30 Tree Traversal + Tree manipulation
144. Binary Tree Preorder Traversal 题目:对一棵二叉树进行前序遍历,并将结果存在一个List 当中 思路:使用递归 细节: 对于递归版本:注意preorderTraversal() function 返回的是一个List, 所以不正直接用 res.add(root ...
分类:其他好文   时间:2018-05-31 10:38:51    阅读次数:124
Binary Tree Preorder Traversal
题目描述 Given a binary tree, return the preorder traversal of its nodes' values. For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3 return[1,2,3]. Note: R ...
分类:其他好文   时间:2018-04-09 00:28:22    阅读次数:152
二叉树的遍历(循环方式)
前序遍历(Preorder Traverse) 根结点-左子树-右子树 Java代码实现: 后序遍历(postorder traverse) 左子树-右子树-根结点 代码实现: 中序遍历(inorder traverse): 左子树-根结点-右子树 代码实现: ...
分类:其他好文   时间:2018-04-07 15:02:24    阅读次数:172
105 Construct Binary Tree from Preorder and Inorder Traversal 从前序与中序遍历序列构造二叉树
给定一棵树的前序遍历与中序遍历,依据此构造二叉树。注意:你可以假设树中没有重复的元素。例如,给出前序遍历 = [3,9,20,15,7]中序遍历 = [9,3,15,20,7]返回如下的二叉树: 3 / \ 9 20 / \ 15 7详见:https://leetcode.com/problems/ ...
分类:其他好文   时间:2018-04-04 23:42:14    阅读次数:399
剑指offer4
中序遍历(LDR)是二叉树遍历的一种,也叫做中根遍历、中序周游。在二叉树中,先左后根再右。巧记:左根右。 现在有一个问题,已知二叉树的前序遍历和中序遍历:PreOrder: GDAFEMHZInOrder: ADEFGHMZ我们如何还原这颗二叉树,并求出他的后序遍历? 我们基于一个事实:中序遍历一定 ...
分类:其他好文   时间:2018-03-30 18:33:44    阅读次数:139
【PAT1138】Postorder Traversal(25)
Suppose that all the keys in a binary tree are distinct positive integers. Given the preorder and inorder traversal sequences, you are supposed to out ...
分类:其他好文   时间:2018-03-17 00:42:20    阅读次数:248
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