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对python生成器特性使用的好例子
1.对序列进行分组的函数(摘自web.py源码utils.py文件中) 1 def group(seq, size): 2 """ 3 Returns an iterator over a series of lists of length size from iterable. ...
分类:编程语言   时间:2014-05-28 04:21:00    阅读次数:365
git merge branch
git branch look at your branchesgit branch newbranchgit checkout newbrachdo somethinggit checkout mastergit merge newbranchgit branch -d newbrach
分类:其他好文   时间:2014-05-27 16:09:01    阅读次数:227
Guava的常用方法示例
Guava Maven Dependency com.google.guava guava {guava.version}Guava 常用方法示例Lists实例化 ListList list = Lists.newArrayList();Maps实例化 MapMap>> map =...
分类:其他好文   时间:2014-05-26 10:53:50    阅读次数:233
MySQL存储引擎比较
MySQL常用的存储引擎为MyISAM、InnoDB、MEMORY、MERGE,其中InnoDB提供事务安全表,其他存储引擎都是非事务安全表。MyISAM是MySQL的默认存储引擎。MyISAM不支持事务、也不支持外键,但其访问速度快,对事务完整性没有要求。InnoDB存储引擎提供了具有提交、回滚和...
分类:数据库   时间:2014-05-26 09:42:53    阅读次数:349
UVA Tree Summing
题目如下:  Tree Summing  Background LISP was one of the earliest high-level programming languages and, withFORTRAN, is one of the oldest languages currently being used. Lists,wh...
分类:其他好文   时间:2014-05-25 21:39:51    阅读次数:276
LeetCode:Add Two Numbers
You are given two linked lists representing two non-negative numbers. The digits are   stored in  reverse order and each of their nodes contain a single digit. Add the two numbers   and return i...
分类:其他好文   时间:2014-05-25 21:36:52    阅读次数:268
Android手势识别 Camera 预览界面上显示文字 布局注意事项(merge布局)
通常在Surfaceview作为预览视频帧的载体,有时需在上面显示提示文字。以前我弄的都好好的...
分类:移动开发   时间:2014-05-25 18:27:16    阅读次数:417
[leetcode]_Merge Sorted Array
题目:合并两个有序数组A , B,将合并后的数组存到A中。假设A的空间足够装下A和B所有的元素。思路:这道题考虑如果正向扫描两个数组,则每插入一个元素,则需移动A后的所有元素。换个角度想,既然元素个数一定,则从尾部扫描两个数组,依次放入到A的尾部,这样既不会产生大量元素的移动,也不会造成A中元素被覆...
分类:其他好文   时间:2014-05-25 15:09:32    阅读次数:222
LeetCode: Insert Interval [056]
【题目】 Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary). You may assume that the intervals were initially sorted according to their start times. Example 1: Given intervals [1,3],[6,9], insert and mer...
分类:其他好文   时间:2014-05-25 12:56:43    阅读次数:271
LeetCode: Merge Intervals [055]
【题目】 Given an array of non-negative integers, you are initially positioned at the first index of the array. Given a collection of intervals, merge all overlapping intervals. For example, Given [1,3],[2,6],[8,10],[15,18], return [1,6],[8,10],[15,18]. ...
分类:其他好文   时间:2014-05-24 14:18:27    阅读次数:193
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