hdu 1686 Oulipo (kmp)】的更多相关文章

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1686 题目大意:寻找子链在母链中出现的次数. #include <iostream> #include <cstdio> #include <cstring> using namespace std; ],sum,lens,lenc; ],ch[]; int get_next() { ,j=-; next[]=-; while (i<strlen(str)) { ||…
Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Oulipo group. A quote from the book: Tout avait Pair normal, mais tout s'affirmait faux. Tout avait Fair…
题意:主串中能找到几个模式串 思路:超详细解释KMP KMP:针对这个代码,解释一下Fail数组的含义:T为主串,P为模式串,Fail代表失配值,即当P[j] != T[i]时,j要指向的位置为Fail[j],当Fail为-1时表示i指针后移.如果使用这个代码,Fail[j]的值的含义为P[0]…P[j-1]这个子串的前后缀匹配度,但是下面代码的不是!!! 代码: #include<iostream> #include<algorithm> const int N = 100000…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1686 题目大意:给两个字符串A,B求出A中出现了几次B(计算重复部分). 解题思路:稍微对kmp()函数进行修改,当j==m时,使得j=nxt[j].类似地有HDU 2087题意相似,但是不计算重复部分,在j==m时,使j=0即可. 代码 #include<iostream> #include<cstdio> #include<cstring> #include<al…
一开始总是超时,后来发现还是方法没找对,这个跟普通KMP不太一样的就是,KMP匹配成功的时候会完全跳过已经匹配成功的匹配段,至少我掌握的是.那么如何避免这样的问题呢,举个栗子啊 原串为ABABA,模式串为ABA,当匹配成功的时候,只要跳转到模式串最大公共前后缀长度就行了,ABA的长度为1,所以就是从原串的第二个B开始进行匹配,这样就不会漏了,记录所有匹配成功的次数就是答案. #include<iostream> #include<cstdio> #include<cstrin…
Oulipo Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 21428    Accepted Submission(s): 8324 Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, wi…
Oulipo Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 17441    Accepted Submission(s): 6938 Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, wi…
Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Oulipo group. A quote from the book:Tout avait Pair normal, mais tout s’affirmait faux. Tout avait Fair…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1686 题意 查询字符串 $p$ 在字符串 $s$ 中出现了多少次,可重叠. 题解 KMP模板题. Tips 需要关闭流同步,否则会超时. 代码 #include <bits/stdc++.h> using namespace std; const int N = 1e6 + 100; int Next[N]; string s, p; void init_Next() { Next[0] =Nex…
Oulipo Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 26479   Accepted: 10550 Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Oulipo group. A quot…
题目链接:https://vjudge.net/contest/220679#problem/B 题目大意: 输入一个T,表示有T组测试数据: 每组测试数据包括一个字符串W,T,T长度大于W小于1000000,w长度小于10000,计算W匹配到T中成功的次数: 需要注意的是: 第一次将匹配成功的位置得到后,若从匹配到的位置开始算起,会超时,实际上没必要,每次模式串匹配成功时,都将个数+1,然后从next数组的下一位继续开始匹配,直至待匹配串结束 代码如下:实际上就是将kmp裸题稍微改一下. 若两…
The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Oulipo group. A quote from the book: Tout avait Pair normal, mais tout s’affirmait faux. Tout avait Fair normal, d’abord, pu…
Period Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 4325    Accepted Submission(s): 2087 Problem Description For each prefix of a given string S with N characters (each character has an ASCI…
Oulipo Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 49378   Accepted: 19617 Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Oulipo group. A quot…
HDU 1686 Oulipo / POJ 3461 Oulipo / SCU 2652 Oulipo (字符串匹配,KMP) Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Oulipo group. A quote from the book: Tout avait…
id=25191" target="_blank" style="color:blue; text-decoration:none">HDU - 1686 Oulipo Time Limit: 1000MS   Memory Limit: 32768KB   64bit IO Format: %I64d & %I64u id=25191" class="login ui-button ui-widget ui-state-…
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HDU 5724 Chess(国际象棋) Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Description 题目描述 Alice and Bob are playing a special chess game on an n × 20 chessboard. There are several chesses on the chessboard. They can mo…
 physics(物理) Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)   Description 题目描述 There are n balls on a smooth horizontal straight track. The track can be considered to be a number line. The balls can be considered…
 Danganronpa(弹丸论破) Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Description 题目描述 Chisa Yukizome works as a teacher in the school. She prepares many gifts, which consist of n kinds with a[i] quantities of each ki…
HDU 3085 Nightmare Ⅱ(噩梦 Ⅱ) Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)   Problem Description - 题目描述 Last night, little erriyue had a horrible nightmare. He dreamed that he and his girl friend were trapped in a…
HDU 5976 Detachment(拆分) 00 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)   Problem Description - 题目描述 In a highly developed alien society, the habitats are almost infinite dimensional space. In the history of this planet,there is an o…
poj2406 Power Strings(kmp) 给出一个字符串,问这个字符串是一个字符串重复几次.要求最大化重复次数. 若当前字符串为S,用kmp匹配'\0'+S和S即可. #include <cstdio> #include <cstring> using namespace std; const int maxn=2e6+5; char s1[maxn], s2[maxn]; int n1, n2, nxt[maxn], ans; int main(){ while (~…
HDU题目 POJ题目 求目标串s中包含多少个模式串p KMP算法,必须好好利用next数组,, (kmp解析)——可参考 海子的博客  KMP算法 //写法一: #include<string> #include <stdio.h> #include <iostream> #include <algorithm> #include <string.h> using namespace std; void getNext(char *p,int…
Period Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3196    Accepted Submission(s): 1603 Problem Description For each prefix of a given string S with N characters (each character has an ASCII…
HDU-1686 P3375 kmp介绍: http://www.matrix67.com/blog/archives/115 http://www.cnblogs.com/SYCstudio/p/7194315.html http://blog.chinaunix.net/uid-8735300-id-2017161.html(mp&kmp) http://www-igm.univ-mlv.fr/~lecroq/string/node8.html(mp&kmp,看上去很正确的例程) ht…
Description “Be subtle! Be subtle! And use your spies for every kind of business. ”― Sun Tzu“A spy with insufficient ability really sucks”― An anonymous general who lost the warYou, a general, following Sun Tzu’s instruction, make heavy use of spies…
链接  HDU 1711 Number Sequence KMP 算法 我以自己理解写的,写的不对,不明白的地方海王子出来,一起共同学习: 字符串匹配 就是KMP,一般思想,用一个for循环找开头   如果开头一样进入第二个for循环:这样统计  直观 容易理解.但是时间复杂度比较长.所以就有KMP  这个算法了 KMP 大体思想因为在上一个方法之中,有的字符重复比较了,使得找到目标字符窜效率比较低, 比如   :目标串为:   ① a b a b c 在                 ② a…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4816 Problem Description The Bathysphere is a spherical deep-sea submersible which was unpowered and lowered into the ocean on a cable, and was used to conduct a series of dives under the sea. The Bathys…