原文：http://stackoverflow.com/questions/2336522/png-vs-gif-vs-jpeg-when-best-to-useYou should be aware of a few key factors...First, there are two types...
分类：
其他好文 时间：
2015-05-27 20:52:37
阅读次数：
729
Two Sum:
Given an array of integers, find two numbers such that they add up to a specific target number.
The function twoSum should return indices of the two numbers such that they add up to the...
分类：
其他好文 时间：
2015-05-27 13:57:02
阅读次数：
161
Problem Description
Now you get a number N, and a M-integers set, you should find out how many integers which are small than N, that they can divided exactly by any integers in the set. For example,...
分类：
其他好文 时间：
2015-05-27 10:22:22
阅读次数：
119
描述
we define f(A) = 1, f(a) = -1, f(B) = 2, f(b) = -2, ... f(Z) = 26, f(z) = -26;
Give you a letter x and a number y , you should output the result of y+f(x).
输入On the first line, contains ...
分类：
其他好文 时间：
2015-05-27 10:12:24
阅读次数：
149
Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the arr...
分类：
其他好文 时间：
2015-05-27 00:59:20
阅读次数：
117
用Mocha、should、supertest对sailsjs进行单元测试，简单示例
分类：
Web程序 时间：
2015-05-26 17:50:49
阅读次数：
265
Contains Duplicate问题：Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at l...
分类：
其他好文 时间：
2015-05-26 15:55:23
阅读次数：
116
Apparently, more expensive flowers should be bought with lower coeff. (Greedy part), and any unbalanced assignment would cause extra cost.So the code ...
分类：
其他好文 时间：
2015-05-26 15:44:52
阅读次数：
95
The following should be avoided: NSMutableArray?*aMutableArray?=?[@[]?mutableCopy]; The problems with the previous notation are both of efficiency and readability. On the efficiency side, an un...
分类：
其他好文 时间：
2015-05-26 12:53:33
阅读次数：
122
好吧我承认我竟然犯低级错误了。。。我忏悔。。。为了提醒自己置顶一个礼拜提交上述代码看上去貌似没什么问题，但是点击查询按钮的时候死活不提交表单，按钮type改为submit表单提交正常。Additional Notes: Forms and their child elements should no...
分类：
Web程序 时间：
2015-05-26 10:31:12
阅读次数：
222
