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[LeetCode] Binary Tree Preorder Traversal 二叉树的先序遍历
Given a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[1,2,3].Not...
分类:其他好文   时间:2014-12-05 17:07:57    阅读次数:179
Leetcode: Binary Tree Preorder Traversal
Given a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[1,2,3].Not...
分类:其他好文   时间:2014-12-04 21:21:05    阅读次数:153
[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. 简单的思想:正序排列时,某节点的右节点一定是该节点的右子树,中序排列,某节点的左节点一定是该节点的左子树; ...
分类:其他好文   时间:2014-12-04 18:03:12    阅读次数:143
LeetCode: Binary Tree Preorder Traversal 解题报告
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 ...
分类:其他好文   时间:2014-12-03 23:14:20    阅读次数:163
LeetCode[Tree]: 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. 这类问题非常适合用递归做,递归思路如下: 前序遍历的第一个节点必然是根节点,中序遍历中根节点之前的节...
分类:其他好文   时间:2014-12-03 21:27:24    阅读次数:172
【LeetCode】Construct Binary Tree from Preorder and Inorder Traversal
Construct Binary Tree from Preorder and Inorder TraversalGiven preorder and inorder traversal of a tree, construct the binary tree.Note:You may assume...
分类:其他好文   时间:2014-11-30 16:46:40    阅读次数:150
Leetcode-Construct Binary Tree from inorder and preorder travesal
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: 1 /**...
分类:其他好文   时间:2014-11-29 01:31:14    阅读次数:256
LeetCode:Construct Binary Tree from Preorder and Inorder Traversal
要求:通过二叉树的前序和中序遍历序列构建一颗二叉树代码如下: 1 struct TreeNode { 2 int val; 3 TreeNode *left; 4 TreeNode *right; 5 TreeNode(int x):...
分类:其他好文   时间:2014-11-27 17:49:13    阅读次数:220
【LeetCode】Construct Binary Tree from Preorder and Inorder Traversal 解题报告
【原题】 Given preorder and inorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree. 【解析】 题意:根据二叉树先序遍历和中序遍历的结果,构造二叉树。跟 根据中序遍历和后序遍历结...
分类:其他好文   时间:2014-11-27 12:50:15    阅读次数:155
LeetCode - Construct Binary Tree from Preorder and Inorder Traversal
根据二叉树的前序遍历和中序遍历构造二叉树。思路:前序遍历的第一个节点就是根节点,扫描中序遍历找出根结点,根结点的左边、右边分别为左子树、右子树中序遍历。再计算左子数长度leftLength,前序遍历根结点后的leftLength长度为左子树的前序遍历,剩下的为右子树的前序遍历,代码如下: 1 /**...
分类:其他好文   时间:2014-11-26 13:48:33    阅读次数:129
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