我们在使用RAC的时候,有时候处理一个主消息之外可能还需要其他的辅助消息。比如说,我们在上次图片或者下载的时候。往往除了需要知道结果,还需要过程的进度。简单的做法就是外部自己创建一个subject,然后给具体做事情的模块来手动设置subject的next值了。这是一个经常用的东西,所以我这边参考了AFNetworking+RACExtension中得代码。自己重建了支持进度的signal和subs...
                            
                            
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其他好文   时间:
2015-01-12 13:07:11   
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445
                             
                    
                        
                            
                            
                                求字符串中的最长无重复子串的长度,例如"abcabcbb",最长无重复子串为"abc",长度为3。因为要求无重复,因此想到要用HashMap来保存,因为HashMap的键值不能重复。将要存入的字符作为key,字符在字符串中的下标作为value,如果map中已经存有该字符,则删掉该字符以及字符串中该字符之前的所有字符,然后再存入。例如字符串为"abcbd",如已存入abc,现在要存b,则删掉ab,存...
                            
                            
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其他好文   时间:
2015-01-12 11:38:25   
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217
                             
                    
                        
                            
                            
                                # -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com'https://oj.leetcode.com/problems/longest-substring-without-repeating-characters/Given a st...
                            
                            
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编程语言   时间:
2015-01-12 01:36:33   
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255
                             
                    
                        
                            
                            
                                Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo...
                            
                            
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其他好文   时间:
2015-01-11 22:58:44   
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223
                             
                    
                        
                            
                            
                                难点1,是栈,2是流程class Solution {public: int longestValidParentheses(string s) { stack mstack; char cbefore; int count = 0; if(s.empt...
                            
                            
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其他好文   时间:
2015-01-11 12:14:33   
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119
                             
                    
                        
                            
                            
                                The problem 1:Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to t...
                            
                            
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其他好文   时间:
2015-01-11 06:07:49   
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216
                             
                    
                        
                            
                            
                                理论
public class ContentNegotiatingViewResolver
extends WebApplicationObjectSupport
implements ViewResolver, Ordered
Implementation of ViewResolver that resolves a view based on the request file name ...
                            
                            
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编程语言   时间:
2015-01-10 12:43:55   
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264
                             
                    
                        
                            
                            
                                Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example,Given [100, 4, 200, 1, 3, 2],The longes...
                            
                            
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其他好文   时间:
2015-01-09 22:08:16   
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178
                             
                    
                        
                            
                            
                                1812. Longest Common Substring IIProblem code: LCS2A string is finite sequence of characters over a non-empty finite set Σ.In this problem, Σ is the s...
                            
                            
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其他好文   时间:
2015-01-09 22:06:32   
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339
                             
                    
                        
                            
                            
                                Once upon a time there was a greedy King who ordered hischief Architect to build a wall around the King's castle. The King was sogreedy, that he would not listen to his Architect's proposals to build ...
                            
                            
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其他好文   时间:
2015-01-09 19:25:33   
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297