HDU 5475 La Vie en rose(暴力 2016 Multi-University Training Contest 2 )
来源:互联网 发布:iphone软件怎么做 编辑:程序博客网 时间:2024/04/26 21:02
传送门
Problem Description
Professor Zhang would like to solve the multiple pattern matching problem, but he only has only one pattern string p=p1p2…pm. So, he wants to generate as many as possible pattern strings from p using the following method:
- select some indices i1,i2,…,ik such that 1≤i1< i2<…< ik<|p| and |ij−ij+1|>1 for all 1≤j< k.
- swap pij and pij+1 for all 1≤j≤k.
Now, for a given a string s=s1s2…sn, Professor Zhang wants to find all occurrences of all the generated patterns in s.
Input
There are multiple test cases. The first line of input contains an integer T, indicating the number of test cases. For each test case:
The first line contains two integers n and m (1≤n≤105,1≤m≤min{5000,n}) – the length of s and p.
The second line contains the string s and the third line contains the string p. Both the strings consist of only lowercase English letters.
Output
For each test case, output a binary string of length n. The i-th character is “1” if and only if the substring sisi+1…si+m−1 is one of the generated patterns.
Sample Input
3
4 1
abac
a
4 2
aaaa
aa
9 3
abcbacacb
abc
Sample Output
1010
1110
100100100
题目大意:
模式匹配,可以交换一次相邻字符。
说句实话,这道题的标程是dp,有的人用暴力过了,这里我用的是kmp优化写的,速度3588MS
#include<stdio.h> #include<string> #include<cstring> #include<iostream> using namespace std; int f[100000]; void get_next(string a) { int i=0;f[0]=-1;int j=-1; while(i<a.length()-1) { if(j==-1||a.c_str()[i]==a.c_str()[j]) { ++i; ++j; f[i]=j; } else j=f[j]; } } int kmp(string a,string b,int pos) { int i=pos;int j=0; int l1,l2; l1=a.length(); l2=b.length(); while(i<l1&&j<l2) { bool fa=0; if(j==-1||a.c_str()[i]==b.c_str()[j]) { i++;j++; } else if(fa==0&&l1!=i&&l2!=j) { fa=1; if(a.c_str()[i+1]==b.c_str()[j]&&a.c_str()[i]==b.c_str()[j+1]) { i+=2; j+=2; } else return -1; } else j=f[j]; } if(j>=b.length())return i-b.length(); return -1; } int main() { string a; string b; int t; scanf("%d",&t); while(t--) { int c,d; scanf("%d %d",&c,&d); cin>>a>>b; get_next(a); int temp=0; for(int i=0;i<c;i++) if(kmp(a,b,i)!=-1) printf("1"); else printf("0"); printf("\n"); } return 0; }
- HDU 5475 La Vie en rose(暴力 2016 Multi-University Training Contest 2 )
- HDU 5475 La Vie en rose(暴力 2016 Multi-University Training Contest 2 )
- hdu 5745 La Vie en rose(2016 Multi-University Training Contest 2——暴力)
- 2016 Multi-University Training Contest 2 La Vie en rose
- 2016 Multi-University Training Contest 2 1012 La Vie en rose (暴力)
- 暴力交叉匹配——La Vie en rose ( HDU 5745 )(2016 Multi-University Training Contest 2 1012)
- 2016 Multi-University Training Contest 2 1012 La Vie en rose
- 【HDU5745 2016 Multi-University Training Contest 2L】【bitset做法or暴力】La Vie en rose 目标串多少子串可以被原始串做相邻交换得到
- HDU 5745 La Vie en rose(暴力碾压过去。。。)
- HDU 5745 La Vie en rose 字符串匹配(暴力)
- 2016 Multi-University Training Contest 2 1001 hdu 5734 暴力
- hdu 5745 2016 Multi-University Training Contest 2 (暴力)
- hdu5745 La Vie en rose(暴力)
- HDU 5745 La Vie en rose
- HDU 5745 ( La Vie en rose )
- hdu-5745 La Vie en rose bitset
- 2016多校联赛2D La Vie en rose(hdu 5745)
- HDU5745 La Vie en rose
- How to: Implement CopyToDataTable<T> Where the Generic Type T Is Not a DataRow
- 线程池的简单实现
- 【小技巧】Matlab读取CSV文件
- 【BZOJ 1008(改)】宗(xie)教 ——数论,快速幂
- html中javascript实现打字机效果
- HDU 5475 La Vie en rose(暴力 2016 Multi-University Training Contest 2 )
- linux关于bashrc与profile的区别
- 转载一份C++线程池的代码,非常实用
- iOS开发--用企业证书生成IPA包遇到的坑
- 使用Gson解析数据
- const的使用
- 计算机层次化存储结构
- php 四种排序
- 关于面向对象