// Playground - noun: a place where people can playimport UIKit// For-In 循环// 1 遍历数字区间for index in 1...5 { println("\(index) times 5 is \(index)")}...
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编程语言 时间:
2014-11-23 18:57:25
阅读次数:
195
// Playground - noun: a place where people can playimport UIKit// 几个重要的概念Properties/Methods/Subscripts/Initialization/Extensions/Protocols/Inheritance...
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编程语言 时间:
2014-11-23 18:56:31
阅读次数:
242
// Playground - noun: a place where people can playimport UIKit// 基本运算符// 运算符有3种: 单目运算符(如 -a),二目运算符(如a+b)和三目运算符(a ? b : c)let (x, y) = (20, 30) // 分解元...
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编程语言 时间:
2014-11-23 18:54:52
阅读次数:
220
// Playground - noun: a place where people can playimport UIKitvar someString = "some string literal value"someString += "another"// 初始化空字符串 2种方式,得出的结...
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编程语言 时间:
2014-11-23 18:54:24
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191
// Playground - noun: a place where people can playimport UIKit// 定义和调用函数func sayHello(personName : String) -> String { let greeting = "hello, " + ...
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编程语言 时间:
2014-11-23 18:53:31
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262
// Playground - noun: a place where people can play// 通过代码快速了解swift常用知识,需要一定object-c基础import UIKit// 声明常量let maximumNumberOfAttemps = 10// 声明变量var cur...
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编程语言 时间:
2014-11-23 18:53:09
阅读次数:
214
// Playground - noun: a place where people can playimport UIKit// 枚举语法enum SomeEnumeration { // enumeration definition goes here}// 定义一个枚举enum Comp...
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编程语言 时间:
2014-11-23 18:50:48
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197
// Playground - noun: a place where people can playimport UIKit// 数组 字典// 集合的可变性 赋值给var的集合是可变的mutable,赋值给let的集合是不可变的immutable// 数组 Array 等价于 [SomeTy.....
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编程语言 时间:
2014-11-23 18:47:08
阅读次数:
289
【题目】
Given a binary tree, flatten it to a linked list in-place.
For example,
Given
1
/ 2 5
/ \ 3 4 6
The flattened tree should look like:...
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其他好文 时间:
2014-11-23 17:35:12
阅读次数:
131
Divisibility
Time Limit: 1000MS
Memory Limit: 10000K
Total Submissions: 10485
Accepted: 3738
Description
Consider an arbitrary sequence of integers. One can place + or ...
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其他好文 时间:
2014-11-23 15:59:50
阅读次数:
204