http://acm.hdu.edu.cn/showproblem.php?pid=1686 题意:给定一个文本串和给定一个模式串,求文本串中有几个模式串. 思路:直接套用KMP模板. #include<iostream> #include<cstring> #include<string> using namespace std; + ; ], n, m; ]; void get_next() { int i, j; i = -; j = ; ::next[] = -…

// hdu 1686 KMP模板 // 没啥好说的,KMP裸题,这里是MP模板 #include <cstdio> #include <iostream> #include <cstring> #include <algorithm> using namespace std; ; ; char T[MAX_N]; char p[MAX_M]; int f[MAX_M]; int n,m; void getfail(){ f[] = f[] = ; ;i&l…

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-…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1686 分析:典型的KMP算法,统计字符串匹配的次数. 用Next数组压缩时间复杂度,要做一些修改. /*Oulipo Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5769 Accepted Submission(s): 2322 Proble…

首先第一题 戳我穿越;http://acm.hdu.edu.cn/showproblem.php?pid=1686 题目大意好理解,每组输入一个子串和一个母串,问在母串中有多少个子串? 文明人不要暴力,因为宽度会超时,除去暴力后这就是赤果果的KMP KMP的重点在于在子串中建立一个匹配表,记录 到每一位的 前缀后缀 中的相同的子子串的最大长度 然后在比较子母串的时候当遇到不同时 后移的位数就是前面相同的个数减去对应的匹配表例的数 额 讲的不清不楚 那推荐戳这里:http://kb.cnblogs…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1686 Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter…

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…

题目地址:http://acm.hdu.edu.cn/showproblem.php?pid=1686 题目: 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…

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)) { ||…