Single Wildcard Pattern Matching

题意翻译

### 题目描述 给定两个小写英文单词 $s,t$,其中 $s$ 包含还不多于一个的 `*`。$s$ 的长度为 $n$,而 $t$ 的长度为 $m$。 $s$ 中的 `*` 可以被替换为任意小写字母串(可以是空串),但其他字母不能被更改或者调换顺序。如果将 `*` 替换为一个任意小写字母串之后,$s=t$,那么我们称 $s,t$ 是匹配的。 例如,字符串 $s=$ `lu*gu` 与 `luogu` `lugu` `luooooogu`都是匹配的,但与字符串 `lougu` `log` `lu^_^gu` `lu114514gu` 都是不匹配的。 如果给定的 $s,t$ 是匹配的,输出 `YES`,否则输出 `NO`。 ### 输入格式 第一行输入两个整数 $n,m$,分别表示 $s$ 和 $t$ 的长度。 第二行输入字符串 $s$,保证 $s$ 中只含有小写字母和不多于一个的 `*`。 第三行输入字符串 $t$,保证 $t$ 中只含有小写字母。 ### 输出格式 如果 $s$ 与 $t$ 是匹配的,那么输出 `YES`,否则输出 `NO`。 ### 数据范围 对于 $100\%$ 的数据,$1\le n,m\le2\times10^5$。 $\mathrm{by\ @}$[$\mathrm{Fish\_Know\_Forever}$](/user/663215)

题目描述

You are given two strings $ s $ and $ t $ . The string $ s $ consists of lowercase Latin letters and at most one wildcard character '\*', the string $ t $ consists only of lowercase Latin letters. The length of the string $ s $ equals $ n $ , the length of the string $ t $ equals $ m $ . The wildcard character '\*' in the string $ s $ (if any) can be replaced with an arbitrary sequence (possibly empty) of lowercase Latin letters. No other character of $ s $ can be replaced with anything. If it is possible to replace a wildcard character '\*' in $ s $ to obtain a string $ t $ , then the string $ t $ matches the pattern $ s $ . For example, if $ s= $ "aba\*aba" then the following strings match it "abaaba", "abacaba" and "abazzzaba", but the following strings do not match: "ababa", "abcaaba", "codeforces", "aba1aba", "aba?aba". If the given string $ t $ matches the given string $ s $ , print "YES", otherwise print "NO".

输入输出格式

输入格式


The first line contains two integers $ n $ and $ m $ ( $ 1 \le n, m \le 2 \cdot 10^5 $ ) — the length of the string $ s $ and the length of the string $ t $ , respectively. The second line contains string $ s $ of length $ n $ , which consists of lowercase Latin letters and at most one wildcard character '\*'. The third line contains string $ t $ of length $ m $ , which consists only of lowercase Latin letters.

输出格式


Print "YES" (without quotes), if you can obtain the string $ t $ from the string $ s $ . Otherwise print "NO" (without quotes).

输入输出样例

输入样例 #1

6 10
code*s
codeforces

输出样例 #1

YES

输入样例 #2

6 5
vk*cup
vkcup

输出样例 #2

YES

输入样例 #3

1 1
v
k

输出样例 #3

NO

输入样例 #4

9 6
gfgf*gfgf
gfgfgf

输出样例 #4

NO

说明

In the first example a wildcard character '\*' can be replaced with a string "force". So the string $ s $ after this replacement is "codeforces" and the answer is "YES". In the second example a wildcard character '\*' can be replaced with an empty string. So the string $ s $ after this replacement is "vkcup" and the answer is "YES". There is no wildcard character '\*' in the third example and the strings "v" and "k" are different so the answer is "NO". In the fourth example there is no such replacement of a wildcard character '\*' that you can obtain the string $ t $ so the answer is "NO".