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[LeetCode][JavaScript]Binary Tree Preorder Traversal
Binary Tree Preorder TraversalGiven a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ ...
分类:编程语言   时间:2015-09-14 00:17:57    阅读次数:187
Leetcode -- Day 65
Binary TreeQuestion 1Binary Tree Preorder TraversalGiven a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree...
分类:其他好文   时间:2015-09-05 11:10:51    阅读次数:134
[LeetCode]Binary Tree Preorder Traversal
Binary Tree Preorder TraversalGiven a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ ...
分类:其他好文   时间:2015-09-05 00:02:05    阅读次数:302
前序遍历和中序遍历树构造二叉树
该问题用递归的思路很好解决,每一次取前序序列的首元素作为当前子树的根节点,然后在中序序列中找到对应的节点,以此可以确定根节点对应的左子树和右子树的序列长度,递归构造根节点的左子树和右子树即可。 TreeNode *execBuild(vector &preorder, int prestart, int preend, vector &inorder, int instart, int inen...
分类:其他好文   时间:2015-08-31 19:48:01    阅读次数:162
验证给定序列是否是BST的preoder序列
from leetcode?https://leetcode.com/problems/verify-preorder-sequence-in-binary-search-tree/ 比如序列 2, 1, 3 是如下图的BST的preorder 序列: 但是2, 3, 1就不会是一个preorder序列; 先复习一下BST,给...
分类:其他好文   时间:2015-08-27 23:19:14    阅读次数:681
leetcode: Binary Tree Preorder Traversal
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: Recursive soluti...
分类:其他好文   时间:2015-08-26 17:56:07    阅读次数:144
Binary Tree Preorder Traversal
先序遍历,用递归来做,简单的不能再简单了。代码如下:/** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * ...
分类:其他好文   时间:2015-08-20 22:18:26    阅读次数:179
【LeetCode】144. Binary Tree Preorder Traversal
题目:Given a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[1,2,3]....
分类:其他好文   时间:2015-08-19 19:15:55    阅读次数:116
【LeetCode-面试算法经典-Java实现】【144-Binary Tree Preorder Traversal(二叉树非递归前序遍历)】
【144-Binary Tree Preorder Traversal(二叉树非递归前序遍历)(未完成)】【LeetCode-面试算法经典-Java实现】【所有题目目录索引】原题  Given a binary tree, return the preorder traversal of its nodes’ values.   For example:   Given binary tree...
分类:编程语言   时间:2015-08-19 08:15:39    阅读次数:869
Construct Binary Tree from Preorder and Inorder Traversal
称号Given preorder and inorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.方法依据树的中序遍历和前序...
分类:其他好文   时间:2015-08-18 14:04:51    阅读次数:143
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