[HDU2222]Keywords Search Problem Description In the modern time, Search engine came into the life of everybody like Google, Baidu, etc.Wiskey also wants to bring this feature to his image retrieval system.Every image have a long description, when use…

Problem Description In the modern time, Search engine came into the life of everybody like Google, Baidu, etc.Wiskey also wants to bring this feature to his image retrieval system.Every image have a long description, when users type some keywords to…

Problem DescriptionIn the modern time, Search engine came into the life of everybody like Google, Baidu, etc.Wiskey also wants to bring this feature to his image retrieval system.Every image have a long description, when users type some keywords to f…

[CF528D]Fuzzy Search(FFT) 题面 给定两个只含有\(A,T,G,C\)的\(DNA\)序列 定义一个字符\(c\)可以被匹配为:它对齐的字符,在距离\(K\)以内,存在一个字符\(c\),问给定串\(T\)在\(S\)中出现了几次. \(|S|,|T|,K<=200000\) 题解 字符集很小,可以分开进行\(FFT\). 现在的匹配的定义为距离当前位置\(K\)以内的所有字符中是否含有这个字符,如果有设置为\(1\),没有就是\(0\),把字符分开做\(FFT\)然后相…

Selective Search for Object Recoginition surgewong@gmail.com http://blog.csdn.net/surgewong       在前一段时间在看论文相关的工作,没有时间整理对这篇论文的理解.在前面的一篇博客[1]中有提到Selective Search[2],其前期工作利用图像分割的方法得到一些原始区域(具体内容请查看[1]),然后使用一些合并策略将这些区域合并,得到一个层次化的区域结构,而这些结构就包含着可能需要的物体.  …

[题目链接] 点击打开链接 [算法] 此题是AC自动机模板题 AC自动机是很神奇的算法,简单点来说,就是在一棵字典树上进行KMP,它的应用范围很广,非常实用 这篇博客写得很好,推荐阅读 : http://blog.csdn.net/creatorx/article/details/71100840 [代码] 个人觉得我的代码还是写得不错的,大家可以尝试阅读一下,应该可读性较高. #include <algorithm> #include <bitset> #include <…

[题目链接] https://loj.ac/problem/10057 [题意] 原题来自:HDU 2222 给定  n 个长度不超过 50 的由小写英文字母组成的单词准备查询,以及一篇长为 m 的文章,问:文中出现了多少个待查询的单词.多组数据. [题解] 模板题 [代码] #pragma GCC optimize(2) #include<queue> #include<cstdio> #include<cstring> #include<iostream>…

Difficulty:medium  More:[目录]LeetCode Java实现 Description Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sorted from left to right. The first integer of each…

/*Keywords Search Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 47794 Accepted Submission(s): 15228 Problem DescriptionIn the modern time, Search engine came into the life of everybody like Goo…

参考iwtwiioi的模板写出来的.上午gty讲的并没有听懂,只好自己慢慢对着模板理解. 在HDU上为什么相同的程序提交有时T有时A!!! 奉上sth神犇的模板(不是这道题): var ch:char; q,g,num:array [0..500001] of longint; st:string; son:array [0..500001,'a'..'z'] of longint; ts:array [0..1000001] of char; l,s,t,n,i,j,m,k,ans,head,…