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[leetcode]Binary Tree Level Order Traversal @ Python
原题地址:http://oj.leetcode.com/problems/binary-tree-level-order-traversal/题意:二叉树的层序遍历的实现。解题思路:二叉树的层序遍历可以用bfs或者dfs来实现。这里使用的dfs实现,代码比较简洁。实际上,二叉树的先序遍历就是dfs实...
分类:编程语言   时间:2014-05-14 03:25:59    阅读次数:428
[leetcode]Binary Tree Level Order Traversal II @ Python
原题地址:http://oj.leetcode.com/problems/binary-tree-level-order-traversal-ii/题意:Given a binary tree, return thebottom-up level ordertraversal of its node...
分类:编程语言   时间:2014-05-12 22:03:27    阅读次数:581
sql语句查询重复的数据
查找所有重复标题的记录:SELECT *FROM t_info aWHERE ((SELECT COUNT(*)FROM t_infoWHERE Title = a.Title) > 1)ORDER BY Title DESC一。查找重复记录1。查找全部重复记录Select * From 表 Whe...
分类:数据库   时间:2014-05-12 13:12:01    阅读次数:384
【LeetCode】Convert Sorted List to Binary Search Tree
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.1. 将LinkedList的值保存到一个数组中,转化成Convert Sorte...
分类:其他好文   时间:2014-05-12 05:53:09    阅读次数:367
hust 1032 Jim
题目描述Jim is boss of a big company . There are so many workers in his company that it will take a long time for his command send to all of his workers ....
分类:其他好文   时间:2014-05-12 04:51:29    阅读次数:307
222
/* Endian swapping module.Simple example with Avalon streaming interfaces and a CSR busAvalon-ST has readyLatency of 0Avalon-MM has fixed readLatency ...
分类:其他好文   时间:2014-05-11 23:21:17    阅读次数:423
ZOJ 1151 Word Reversal反转单词 (string字符串处理)
链接:http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=151 For each list of words, output a line with each word reversed without changing the order of the words. This problem contains multi...
分类:其他好文   时间:2014-05-11 22:20:43    阅读次数:443
mysql limit性能问题
offset大的时候的比较SELECT * FROM persons LIMIT 200000,10;耗时0.078sSELECT *FROM persons WHERE id>=(SELECT id FROM persons ORDER BY id LIMIT 200000,1) LIMIT 10...
分类:数据库   时间:2014-05-11 16:23:57    阅读次数:322
How to authenticate a user by uid and password?
原文地址:Authentication options|Basic authorizationIf you want to use simple binds with user DN and password within a Java component, in order to authenti...
分类:其他好文   时间:2014-05-10 20:27:03    阅读次数:485
查询表的内容
1:as给表另外命名2:desc倒序3:order by分组4:select*form表名where条件
分类:其他好文   时间:2014-05-10 06:44:37    阅读次数:317
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