Sequence I Problem Description   Mr. Frog has two sequences a1,a2,⋯,an and b1,b2,⋯,bm and a number p. He wants to know the number of positions q such that sequence b1,b2,⋯,bmis exactly the sequence aq,aq+p,aq+2p,⋯,aq+(m−1)p where q+(m−1)p≤n and q≥1.…

<题目链接> 题目大意: 意思是给出两个串,找出匹配串在模式串中的位置. 解题分析: KMP算法模板题. #include <cstdio> #include <cstring> #include <algorithm> using namespace std; ; int n,m; int s1[N],s2[N]; int nxt[N]; void get_nxt(){ ,k=-; nxt[]=-; while(j < m){ || s2[j] ==…

题目来源:2016 CCPC 长春站 题意:给出两个序列 a[] , b[] ,如果b1,b2....bm能够与aq,aq+p,aq+2p...aq+(m-1)p对应( q+(m-1)p<=n && q>=1 ),则q为一个合法的数,找出满足题意的q的个数 思路:简单KMP,枚举起点q,如果匹配成功后记录一次然后重新从最后匹配位置进行匹配,一直匹配到a[]结束 /**********************************************************…

HDU 3397 Sequence operation 题目链接 题意:给定一个01序列,有5种操作 0 a b [a.b]区间置为0 1 a b [a,b]区间置为1 2 a b [a,b]区间0变成1,1变成0 3 a b 查询[a,b]区间1的个数 4 a b 查询[a,b]区间连续1最长的长度 思路:线段树线段合并.须要两个延迟标记一个置为01,一个翻转,然后因为4操作,须要记录左边最长0.1.右边最长0.1,区间最长0.1,然后区间合并去搞就可以 代码: #include <cstdi…

Bazinga Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2287    Accepted Submission(s): 713 Problem Description Ladies and gentlemen, please sit up straight.Don't tilt your head. I'm serious.For…

给定两个数字序列,求a序列中每隔p个构成的p+1个序列中共能匹配多少个b序列. 例如1 1 2 2 3 3 每隔1个的序列有两个1 2 3 kmp,匹配时每次主串往前p个,枚举1到p为起点. 题目 #include<bits/stdc++.h> #define N 1000005 int t,n,m,p; int nex[N]; int a[N],b[N]; using namespace std; void getNext(){ int i=0,k=-1; nex[0]=k; while(b…

Number Sequence Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 39408    Accepted Submission(s): 16269 Problem Description Given two sequences of numbers : a[1], a[2], ...... , a[N], and b[1],…

传送门:http://acm.hdu.edu.cn/showproblem.php?pid=1711 Number Sequence Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 42917    Accepted Submission(s): 17715 Problem Description Given two sequences…

HDU - 1711 A - Number Sequence   Given two sequences of numbers : a[1], a[2], ...... , a[N], and b[1], b[2], ...... , b[M] (1 <= M <= 10000, 1 <= N <= 1000000). Your task is to find a number K which make a[K] = b[1], a[K + 1] = b[2], ...... ,…

题目代号:HDU 1711 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1711 Number Sequence Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 28288    Accepted Submission(s): 11891 Problem Description Give…