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[LeetCode] Construct Binary Tree from Preorder and Inorder Traversal 由先序和中序遍历建立二叉树
Given preorder and inorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.这道题要求用先序和中序遍历来建...
分类:其他好文   时间:2015-02-20 14:08:33    阅读次数:169
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.[Solution]先序定根,...
分类:其他好文   时间:2015-02-18 11:47:49    阅读次数:151
[LeetCode]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. 这道题要求根据二叉树的前序遍历序列和中序遍历序列构建二叉树。 举个例子: 前序序列:A B D E F C...
分类:其他好文   时间:2015-02-14 13:48:00    阅读次数:145
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:2015-02-11 09:21:46    阅读次数:137
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]. 解题思路:先序遍历较为简单,直接按顺序存栈即可....
分类:其他好文   时间:2015-02-06 13:12:15    阅读次数:121
Leetcode-Binary Tree Preorder Traversal
题目链接:https://oj.leetcode.com/problems/binary-tree-preorder-traversal/ 题目: Given a binary tree, return the preorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3}, ...
分类:其他好文   时间:2015-02-02 23:21:43    阅读次数:327
144.Binary Tree Preorder Traversal(非递归前序遍历)
Given a binary tree, return the preorder traversal of itsnodes' values. For example: Given binary tree {1,#,2,3},    1         2     /    3 return [1,2,3]. Note: Recursive solution istr...
分类:其他好文   时间:2015-01-30 22:53:36    阅读次数:234
Leetcode#105 Construct Binary Tree from Preorder and Inorder Traversal
原题地址基本二叉树操作。O[ ][ ][ ]O[ ]代码: 1 TreeNode *restore(vector &preorder, vector &inorder, int pp, int ip, int len) { 2 if (len left = r...
分类:其他好文   时间:2015-01-30 10:36:12    阅读次数:125
Leetcode#144 Binary Tree Preorder Traversal
原题地址递归代码谁都会,当然是写非递归代码了。最基本的写法是用一个特殊栈同时保存节点以及节点的左孩子、右孩子是否遍历过。这种思路比较简单,跟递归写法一样很好理解。前序、中序、后序的遍历写法类似。还有一种更"屌"的写法,只需要使用普通栈即可,不需要保存左孩子、右孩子是否遍历过。基本思路是:1. 只要当...
分类:其他好文   时间:2015-01-29 11:50:43    阅读次数:96
43: Construct Binary Tree from Preorder and Inorder Traversal
/************************************************************************/ /* 43: Construct Binary Tree from Preorder and Inorder Traversal */ /**...
分类:其他好文   时间:2015-01-27 23:28:36    阅读次数:209
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