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Binary Tree Maximum Path Sum
Given a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the below binary tree, 1 ...
分类:其他好文   时间:2014-07-10 11:24:15    阅读次数:229
[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.方法一:最先想到的就是递归,注...
分类:其他好文   时间:2014-07-10 09:58:40    阅读次数:224
[LeetCode] Construct Binary Tree from Inorder and Postorder Traversal
Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.方法:在inorder中寻找...
分类:其他好文   时间:2014-07-07 23:18:53    阅读次数:283
[LeetCode] Populating Next Right Pointers in Each Node
Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; }Populate each next pointe...
分类:其他好文   时间:2014-07-07 23:09:49    阅读次数:298
[Leetcode][Tree][Binary Tree Preorder Traversal]
二叉树的前序遍历:root点先被访问,然后是left和right子节点。迭代的版本也相对好写。1、递归版本:时间复杂度O(N),空间复杂度O(N) 1 /** 2 * Definition for binary tree 3 * struct TreeNode { 4 * int va...
分类:其他好文   时间:2014-07-07 20:35:24    阅读次数:158
[Leetcode][Tree][Binary Tree Inorder Traversal]
二叉树的中序遍历1、递归版本/** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) :...
分类:其他好文   时间:2014-07-07 20:00:20    阅读次数:161
Problem Path Sum
Problem Description:Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equ...
分类:其他好文   时间:2014-07-07 19:03:39    阅读次数:165
Problem Flatten Binary Tree
Problem Description:Given a binary tree, flatten it to a linked list in-place.Solution:对二叉树进行前序遍历(pre-order). 1 public void flatten(TreeNode root) { 2...
分类:其他好文   时间:2014-07-07 18:47:24    阅读次数:306
LeetCode——Path Sum II
Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum. For example: Given the below binary tree and sum = 22, 5 / ...
分类:其他好文   时间:2014-06-28 07:31:28    阅读次数:214
Git 图解剖析
git中文件内容并没有真正存储在索引(.git/index)或者提交对象中,而是以blob的形式分别存储在数据库中(.git/objects),并用SHA-1值来校验。 索引文件用识别码列出相关的blob文件以及别的数据。对于提交来说,以树(tree)的形式存储,同样用对于的哈希值识别。树对应着.....
分类:其他好文   时间:2014-06-27 22:40:02    阅读次数:461
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