对列表中的对象进行分组,分组方式使用键值对
NSDictionary NSMutableDictionary类创建带有键的对象列表。
如果需要向字典中添加或删除对象,就要使用NSMutableDictionary
1字典的创建alloc构造函数或者dictionaryWithObjects:forKeys
使用NSDictionary创建的字典一旦创建就无法改变,使用NSMutableD...
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移动开发 时间:
2015-02-03 17:25:58
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178
Problem B: Andy's First DictionaryTime limit: 3 secondsAndy, 8, has a dream - he wants to produce his very own dictionary. This is not an easy task fo...
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其他好文 时间:
2015-02-03 08:15:20
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200
Given a stringsand a dictionary of wordsdict, determine ifscan be segmented into a space-separated sequence of one or more dictionary words.For exampl...
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其他好文 时间:
2015-02-02 17:53:55
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165
Given a stringsand a dictionary of wordsdict, add spaces insto construct a sentence where each word is a valid dictionary word.Return all such possibl...
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其他好文 时间:
2015-02-02 17:24:51
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150
The Cow Lexicon
Time Limit: 2000MS
Memory Limit: 65536K
Total Submissions: 8341
Accepted: 3941
Description
Few know that the cows have their own dictionary with W...
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其他好文 时间:
2015-02-02 14:16:26
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105
Given a roman numeral, convert it to an integer.
Input is guaranteed to be within the range from 1 to 3999.
这题的做法和前面一体interger to roman 类似 建一个dictionary 去查询。
1.先把string 反转
2. 用一个last去保存上一次的di...
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编程语言 时间:
2015-01-30 10:53:17
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293
升级程序客户端接收文件 /// /// 文件数据缓存 索引是 ConnectionInfo对象 数据包的顺序号 值是数据 /// Dictionary> incomingDataCache = new Dictionary>(); ...
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其他好文 时间:
2015-01-30 10:39:48
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186
//// HYBJSONModel.h// Json2ModelDemo//// Created by huangyibiao on 14-9-15.// Copyright (c) 2014年 Home. All rights reserved.//#import /*! * @brief...
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移动开发 时间:
2015-01-29 19:18:39
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169
题目:
Given two words (start and end), and a dictionary, find the length of shortest transformation sequence from start to end, such that:
Only one letter can be changed at a timeEach intermediate...
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编程语言 时间:
2015-01-29 09:34:19
阅读次数:
1950
Given a stringsand a dictionary of wordsdict, determine ifscan be segmented into a space-separated sequence of one or more dictionary words.For exampl...
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其他好文 时间:
2015-01-29 07:02:47
阅读次数:
150