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 ...
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其他好文 时间：
2014-07-10 11:24:15
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229
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...
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其他好文 时间：
2014-07-10 09:58:40
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224
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...
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其他好文 时间：
2014-07-07 23:18:53
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283
Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth...
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其他好文 时间：
2014-06-28 10:07:19
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208
简单二分图匹配....
Card Game Cheater
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 1073 Accepted Submission(s): 565
Problem Descrip...
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其他好文 时间：
2014-06-28 09:18:02
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316
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
/ ...
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其他好文 时间：
2014-06-28 07:31:28
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214
Maximum Depth of Binary TreeGiven a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root ...
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其他好文 时间：
2014-06-27 23:13:24
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218
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.....
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其他好文 时间：
2014-06-27 22:40:02
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461
Given a binary tree containing digits from 0-9 only, each root-to-leaf
path could represent a number.
An example is the root-to-leaf path 1->2->3 which represents the number 123.
Find the tota...
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其他好文 时间：
2014-06-27 09:53:29
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208
Given a binary tree, determine if it is a valid binary search tree (BST).
Assume a BST is defined as follows:
The left subtree of a node contains only nodes with keys less than the node's key....
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其他好文 时间：
2014-06-27 09:15:12
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196
