单纯值:1.let常量声明,var声明变量(同时宣布福值,编译器会自己主动判断出类型)var myVariable = 42myVariable 50let myConstant = 42let implicitInteger = 70let implicitDouble = 70.0let exp...
分类:
编程语言 时间:
2015-08-26 13:50:45
阅读次数:
126
Matrix Multiplication
Time Limit: 2000/1000MS (Java/Others) Memory Limit: 128000/64000KB (Java/Others)
Submit Statistic Next
Problem
Problem Description
Let us consider undirected ...
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其他好文 时间:
2015-08-26 12:15:52
阅读次数:
136
Problem Description
"Well, it seems the first problem is too easy. I will let you know how foolish you are later." feng5166 says.
"The second problem is, given an positive integer N, we define an ...
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其他好文 时间:
2015-08-26 12:04:53
阅读次数:
162
Matrix Multiplication
Time Limit: 2000/1000MS (Java/Others) Memory Limit: 128000/64000KB (Java/Others)
链接:http://acdream.info/problem?pid=1213
Problem Description
Let us consider undir...
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其他好文 时间:
2015-08-26 12:03:54
阅读次数:
104
Phone ListProblem DescriptionGiven a list of phone numbers, determine if it is consistent in the sense that no number is the prefix of another. Let’s ...
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其他好文 时间:
2015-08-25 23:24:54
阅读次数:
169
操作员正在检查,更改。归并值特殊符号或短语。例如,加+这两个数字相加(例如let i = 1 + 2)。算如更复杂的逻辑和操作的实施&&(例如if enteredDoorCode && passedRetinaScan),又或让 i 值加1的便捷运算符自增运算符++i等。Swift 支持大部分标准 ...
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编程语言 时间:
2015-08-25 23:04:15
阅读次数:
197
Codeforces 235B Let's Play Osu! (概率dp求期望+公式变形)...
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其他好文 时间:
2015-08-25 16:52:24
阅读次数:
192
copy自:swift2.0官方教程中文版---极客学院版
1.产生闭包之间的循环强引用
直接代码和上图:
class HTMLElement {
let name: String
let text: String?
lazy var asHTML: Void -> String = {
if let text = self.text {
return "\(text...
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其他好文 时间:
2015-08-25 12:02:56
阅读次数:
180
工厂方法模式 Factory Method :(虚拟构造函数模式 Virtual Constructor,多态性工厂模式 Ploymorphic Facoty)
Define an interface for creating an object,but let subclasses decide which class to instantiate.Factory Method lets a ...
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编程语言 时间:
2015-08-21 23:28:35
阅读次数:
206
1.判断有无sim卡 http://www.2cto.com/kf/201306/223744.html
2.Let's Build xxx (如nsobject)系列- by Mike Ash,可以用做学习(理解很多ios内部的实现机制),很不错 https://www.mikeash.com/pyblog/friday-qa-2013-02-08-lets-build-key-value-...
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移动开发 时间:
2015-08-21 17:07:47
阅读次数:
185