Codefroces 832B Petya and Exam
2 seconds
256 megabytes
standard input
standard output
It's hard times now. Today Petya needs to score 100 points on Informatics exam. The tasks seem easy to Petya, but he thinks he lacks time to finish them all, so he asks you to help with one..
There is a glob pattern in the statements (a string consisting of lowercase English letters, characters "?" and "*"). It is known that character "*" occurs no more than once in the pattern.
Also, n query strings are given, it is required to determine for each of them if the pattern matches it or not.
Everything seemed easy to Petya, but then he discovered that the special pattern characters differ from their usual meaning.
A pattern matches a string if it is possible to replace each character "?" with one good lowercase English letter, and the character "*" (if there is one) with any, including empty, string of bad lowercase English letters, so that the resulting string is the same as the given string.
The good letters are given to Petya. All the others are bad.
The first line contains a string with length from 1 to 26 consisting of distinct lowercase English letters. These letters are good letters, all the others are bad.
The second line contains the pattern — a string s of lowercase English letters, characters "?" and "*" (1 ≤ |s| ≤ 105). It is guaranteed that character "*" occurs in s no more than once.
The third line contains integer n (1 ≤ n ≤ 105) — the number of query strings.
n lines follow, each of them contains single non-empty string consisting of lowercase English letters — a query string.
It is guaranteed that the total length of all query strings is not greater than 105.
Print n lines: in the i-th of them print "YES" if the pattern matches the i-th query string, and "NO" otherwise.
You can choose the case (lower or upper) for each letter arbitrary.
ab
a?a
2
aaa
aab
YES
NO
abc
a?a?a*
4
abacaba
abaca
apapa
aaaaax
NO
YES
NO
YES
In the first example we can replace "?" with good letters "a" and "b", so we can see that the answer for the first query is "YES", and the answer for the second query is "NO", because we can't match the third letter.
Explanation of the second example.
- The first query: "NO", because character "*" can be replaced with a string of bad letters only, but the only way to match the query string is to replace it with the string "ba", in which both letters are good.
- The second query: "YES", because characters "?" can be replaced with corresponding good letters, and character "*" can be replaced with empty string, and the strings will coincide.
- The third query: "NO", because characters "?" can't be replaced with bad letters.
- The fourth query: "YES", because characters "?" can be replaced with good letters "a", and character "*" can be replaced with a string of bad letters "x".
模拟题,注意如果模式串中没有*,串长相等才能匹配,如果有*,模式串串长要大于主串串长减1才匹配
#include <iostream>
#include <algorithm>
#include <cstring>
#include <cstdio>
#include <vector>
#include <queue>
#include <cstdlib>
#include <iomanip>
#include <cmath>
#include <ctime>
#include <map>
#include <set>
using namespace std;
#define lowbit(x) (x&(-x))
#define max(x,y) (x>y?x:y)
#define min(x,y) (x<y?x:y)
#define MAX 100000000000000000
#define MOD 1000000007
#define pi acos(-1.0)
#define ei exp(1)
#define PI 3.141592653589793238462
#define ios() ios::sync_with_stdio(false)
#define INF 0x3f3f3f3f3f
#define mem(a) (memset(a,0,sizeof(a)))
typedef long long ll;
int n,i,j,al,bl,y;
string a,b,c(,);
int main()
{
cin>>a;
for(int k=;k<a.size();k++)
{
c[a[k]]=;
}
cin>>a;al=a.size();
cin>>n;
while(n--)
{
cin>>b;bl=b.size();y=;
for(i=j=;y && i<al;i++)//没有*模式串匹配穿必须长度相等。
{
if(a[i]=='*')//有*模式串要大于主串串长减一才行,可以匹配为空
{
while(j<bl-(al-i-))
if(c[b[j++]]) y=;
}
else if(a[i]=='?'?c[b[j]]:a[i]==b[j])
j<bl?j++:y=;
else y=;
}
if(j<bl) y=;
puts(y?"YES":"NO");
}
return ;
}
Codefroces 832B Petya and Exam的更多相关文章
- CodeForces 832B Petya and Exam
B. Petya and Exam time limit per test 2 seconds memory limit per test 256 megabytes input standard i ...
- 832B Petya and Exam
题意:给你两个串,第一个串里面的字母都是good 字母, 第二个串是模式串,里面除了字母还有?和*(只有一个) ?可以替换所有good字母, *可以替换所有坏字母和空格(可以是多个坏字母!!!这点卡了 ...
- E - Petya and Exam CodeForces - 832B 字典树+搜索
E - Petya and Exam CodeForces - 832B 这个题目其实可以不用字典树写,但是因为之前写过poj的一个题目,意思和这个差不多,所以就用字典树写了一遍. 代码还是很好理解的 ...
- CodeForces832-B. Petya and Exam
补的若干年以前的题目,水题,太菜啦_(:з」∠)_ B. Petya and Exam time limit per test 2 seconds memory limit per test 2 ...
- Codeforces Round #425 (Div. 2) B. Petya and Exam(字符串模拟 水)
题目链接:http://codeforces.com/contest/832/problem/B B. Petya and Exam time limit per test 2 seconds mem ...
- Codeforces Round #425 (Div. 2) B - Petya and Exam
地址:http://codeforces.com/contest/832/problem/B 题目: B. Petya and Exam time limit per test 2 seconds m ...
- B. Petya and Exam
B. Petya and Exam 题目链接 题意 给你一串字符,在这个串中所有出现的字符都是\(good\)字符,未出现的都是\(bad\)字符, 然后给你另一串字符,这个字符串中有两个特殊的字符, ...
- Codeforces Round #425 (Div. 2) Problem B Petya and Exam (Codeforces 832B) - 暴力
It's hard times now. Today Petya needs to score 100 points on Informatics exam. The tasks seem easy ...
- CF832B Petya and Exam
思路: 模拟. 实现: #include <iostream> using namespace std; string a, b; ]; bool solve() { ) return f ...
随机推荐
- Codeforces 528A Glass Carving STL模拟
题目链接:点击打开链接 题意: 给定n*m的矩阵.k个操作 2种操作: 1.H x 横向在x位置切一刀 2.V y 竖直在y位置切一刀 每次操作后输出最大的矩阵面积 思路: 由于行列是不相干的,所以仅 ...
- Firefox访问https的网站,一直提示不安全
http://mozilla.com.cn/thread-374897-1-1.html 要激活此功能步骤如下: 在地址栏键入"about:config" 点击“我了解此风险” 在 ...
- 关于APP上架制作二维码相关
1.安卓版本APP上架并生成二维码问题:安卓版本上架国内市场,这个情况比较复杂一些,比如百度,网址是以上传APP生成的一个编号来进行的,每次升级更新后都发生了变化,也就相当于每次升级后网址发生改变(比 ...
- ipad无法连接到app store怎么办
之前入手的air2提示无法连接到app store:你需要首先更新系统到最新的ios版本,去通用设置里面,有个update software, 点击即可,然后才能用apple id 联入,否选择提示连 ...
- Cisco路由器交换机配置命令详解
1. 交换机支持的命令: 交换机基本状态:switch: :ROM状态, 路由器是rommon>hostname> :用户模式hostname# :特权模式hostname(config) ...
- 利用Python网络爬虫抓取微信好友的所在省位和城市分布及其可视化
前几天给大家分享了如何利用Python网络爬虫抓取微信好友数量以及微信好友的男女比例,感兴趣的小伙伴可以点击链接进行查看.今天小编给大家介绍如何利用Python网络爬虫抓取微信好友的省位和城市,并且将 ...
- Flex之登录界面
制作登录框界面 环境搭建:MyEclipse 6.5+Flex Builder 3 Plug-in <?xml version="1.0" encoding="ut ...
- python单元测试-unittest
python内部自带了一个单元测试的模块,pyUnit也就是我们说的:unittest 1.介绍下unittest的基本使用方法: 1)import unittest 2)定义一个继承自unittes ...
- 【Henu ACM Round#15 E】 A and B and Lecture Rooms
[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 最近公共祖先. (树上倍增 一开始统计出每个子树的节点个数_size[i] 如果x和y相同. 那么直接输出n. 否则求出x和y的最近 ...
- PHP和js判断访问终端是否是微信浏览器
http://www.sucaihuo.com/php/813.html http://www.thinkphp.cn/extend/767.html http://blog.csdn.net/gf7 ...