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[LeetCode#208]Implement Trie (Prefix Tree)
Problem:Implement a trie withinsert,search, andstartsWithmethods.Note:You may assume that all inputs are consist of lowercase lettersa-z.Analysis:This...
分类:其他好文   时间:2015-08-29 06:10:29    阅读次数:181
[LeetCode] 232 - Implement Queue using Stacks
Implement the following operations of a queue using stacks.push(x) -- Push element x to the back of queue.pop() -- Removes the element from in front o...
分类:其他好文   时间:2015-08-28 23:05:39    阅读次数:172
[LeetCode] 28 - Implement strStr()
Implement strStr().Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.class Solution {public: .....
分类:其他好文   时间:2015-08-28 13:10:17    阅读次数:103
【LeetCode】28. Implement strStr()
题目:Implement strStr().Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.提示:此题可以使用暴力搜索方法。当然也可以使用...
分类:其他好文   时间:2015-08-28 10:48:37    阅读次数:200
Problem 2128 最长子串(kmp+strstr好题经典)
Problem 2128 最长子串Accept: 134Submit: 523Time Limit: 3000 mSecMemory Limit : 65536 KBProblem Description问题很简单,给你一个字符串s,问s的子串中不包含s1,s2...sn的最长串有多长。Input输...
分类:其他好文   时间:2015-08-27 22:31:39    阅读次数:155
字符串操作的实现:strstr、strcat、strcmp和stcpy
几个重点强调一下: (1)注意使用assert; (2)strcat 和 strcpy最后注意赋值'\0'; (3)strcpy注意内存覆盖的情况; (4)strcmp中:while(!(ret = *(unsigned char *)s1 - *(unsigned char *)s2) && *s2 != '\0');???为什么要转换类                  型; (5)...
分类:其他好文   时间:2015-08-27 15:15:57    阅读次数:144
[LeetCode#44]Wildcard Matching
Problem:Implement wildcard pattern matching with support for '?' and '*'.'?' Matches any single character.'*' Matches any sequence of characters (incl...
分类:其他好文   时间:2015-08-26 07:02:48    阅读次数:212
KMP 讲解 和 KMP的 strstr 实现
网上关于KMP的讲解已经够多了,但我感觉很多的文章对于一些关键点的解释还不够清晰,如果你还不知道KMP算法,那建议你先百度了解一番KMP,如果了解完后感觉大脑还是塞塞的,思路不够清晰的话再来看看我这篇文章。这里就不再对KMP从头到尾讲述了。毫无疑问,KMP的关键点就是求next数组,我只针对如下两点做解释以及给与数学证明。 针对字符串str求它的next数组: 1 next[i]的意义: n...
分类:其他好文   时间:2015-08-25 21:40:25    阅读次数:186
Implement the DiffServ QoS Model
OverviewQoS offers the ability to provide different levels of treatment to specific classes of traffic. Before any QoS application or mechanisms can b...
分类:其他好文   时间:2015-08-25 21:19:47    阅读次数:137
SurfaceHolder.Callback
Class OverviewA client may implement this interface to receive information about changes to the surface. When used with aSurfaceView, the Surface bein...
分类:其他好文   时间:2015-08-21 22:51:34    阅读次数:215
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