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算法优化:从1天到1s
最近参加了Coursera的课程,Stanford大学的《算法:设计与分析》。这是一门非常值得学习的课程。在老师布置的作业中,有这样一道题目: The goal of this problem is to implement a variant of the 2-SUM algorithm . The file contains 1 million integers, both pos...
分类:编程语言   时间:2014-12-04 23:15:49    阅读次数:325
ASP.NET DAY1
The current date and time is: Folder Name Description App_Browsers Contains browser definition fi...
分类:Web程序   时间:2014-12-04 15:33:11    阅读次数:116
IOS“The run destination My Mac 64-bit is not valid
1. iOS APP Project or ?Mac APP Project编译错误提示: “The run destination My Mac 64-bit is not valid for Running the scheme ‘***‘. The scheme ‘***‘ contains no buildables that can be built for th...
分类:移动开发   时间:2014-12-04 14:08:35    阅读次数:183
FREETEXT FREETEXTTABLE CONTAINS CONTAINSTABLE
数据库数据执行任意文本查询:1.使用FREETEXT谓词 FREETEXT接受两个参数。第一个参数表示要搜索的列,可以提供列名,或者用*字符搜索表中的所有列。第二个参数表示要搜索的短语。例: select Title from Titles where FREETEXT(Title,'secret ...
分类:其他好文   时间:2014-12-04 13:48:34    阅读次数:214
C#复习二(Twenty First Day)
呵呵,又来到了今天的总结。这次主要复习了一下字符串的一些处理。今天就来总结一下。理论:?String 字符串,字符串可以看成字符数组,不可变特性(通过for循环,修改string中的元素,失败!)。属性Length 输出用户名的字符个数方法str.Contains() 判断字符串是否包含String...
分类:Windows程序   时间:2014-12-03 23:05:37    阅读次数:302
LeetCode N-Queens
又是一个八皇后问题: Given an integer n, return all distinct solutions to the n-queens puzzle. Each solution contains a distinct board configuration of the n-queens' placement, where 'Q' and '.' both ...
分类:其他好文   时间:2014-12-03 21:17:08    阅读次数:175
【LeetCode】Validate Binary Search Tree 解题报告
今天CSDN博客发生异常,折腾了大半天终于发出了这篇博文。 【题目】 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 no...
分类:其他好文   时间:2014-12-03 17:14:52    阅读次数:219
Clone Graph
Clone an undirected graph. Each node in the graph contains alabeland a list of itsneighbors.OJ's undirected graph serialization:Nodes are labeled uniq...
分类:其他好文   时间:2014-12-03 13:57:44    阅读次数:157
Copy List with Random Pointer
A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.Return a deep copy ...
分类:其他好文   时间:2014-12-03 13:47:22    阅读次数:151
[Leetcode]Clone Graph
Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for each...
分类:其他好文   时间:2014-12-03 12:34:14    阅读次数:113
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