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Binary Tree Level Order Traversal java实现
Given a binary tree, return thelevel ordertraversal of its nodes' values. (ie, from left to right, level by level).For example:Given binary tree{3,9,2...
分类:编程语言   时间:2014-07-12 13:13:24    阅读次数:195
Spring 事务管理高级应用难点剖析--转
第 1 部分http://www.ibm.com/search/csass/search/?q=%E4%BA%8B%E5%8A%A1&sn=dw&lang=zh&cc=CN&en=utf&hpp=20&dws=cndw&lo=zh概述Spring 最成功,最吸引人的地方莫过于轻量级的声明式事务管理,...
分类:编程语言   时间:2014-07-11 23:48:51    阅读次数:532
#Leet Code# Unique Tree
语言:Python描述:使用递归实现 1 class Solution: 2 # @return an integer 3 def numTrees(self, n): 4 if n == 0: 5 return 0 6 eli...
分类:其他好文   时间:2014-07-11 23:44:08    阅读次数:216
leetcode题解:Construct Binary Tree from Preorder and Inorder Traversal (根据前序和中序遍历构造二叉树)
题目:Given preorder and inorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.说明: 1)二叉树可.....
分类:其他好文   时间:2014-07-11 21:07:27    阅读次数:273
leetcode题解:Construct Binary Tree from Inorder and Postorder Traversal(根据中序和后序遍历构造二叉树)
题目:Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree.说明: 1)实现与.....
分类:其他好文   时间:2014-07-11 20:40:38    阅读次数:198
java读取照片信息 获取照片拍摄时的经纬度
项目结构源码:ImageInfo.zip第一步:添加需要的架包metadate-extractor.jar 架包下载地址:https://code.google.com/p/metadata-extractor/downloads/list 或者去Maven仓库下载 http://search......
分类:编程语言   时间:2014-07-11 18:15:44    阅读次数:685
【LeetCode】Search Insert Position (2 solutions)
Search Insert PositionGiven a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if ...
分类:其他好文   时间:2014-07-11 09:09:33    阅读次数:211
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.思路:递归。主要是注意调用时起...
分类:其他好文   时间:2014-07-10 14:40:07    阅读次数:196
SQL Server 性能调优4 之书写高效的查询
限制查询的行和列来提高性能 这条规则非常简单,这里就不细说了。 使用搜索可参数化判断(sargable conditions)来提高性能 Sargable 由 Search ARGument Able 简写而来,字面意思是搜索可参数化?还是比较晦涩哎... 总之使用Sargable判断可以帮助查询优化器更有效地利用索引,并提高采用 index seek 的可能性,我们先把所有的操作符分...
分类:数据库   时间:2014-07-09 12:50:31    阅读次数:288
【LeetCode】Path Sum
题目 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 equals the given sum. For example: Given the below binary tree ...
分类:其他好文   时间:2014-07-09 10:32:42    阅读次数:151
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