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Shuffle Hashing

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Description:

Polycarp has built his own web service. Being a modern web service it includes login feature. And that always implies password security problems.

Polycarp decided to store the hash of the password, generated by the following algorithm:

  1. take the password $$$p$$$, consisting of lowercase Latin letters, and shuffle the letters randomly in it to obtain $$$p'$$$ ($$$p'$$$ can still be equal to $$$p$$$);
  2. generate two random strings, consisting of lowercase Latin letters, $$$s_1$$$ and $$$s_2$$$ (any of these strings can be empty);
  3. the resulting hash $$$h = s_1 + p' + s_2$$$, where addition is string concatenation.

For example, let the password $$$p =$$$ "abacaba". Then $$$p'$$$ can be equal to "aabcaab". Random strings $$$s1 =$$$ "zyx" and $$$s2 =$$$ "kjh". Then $$$h =$$$ "zyxaabcaabkjh".

Note that no letters could be deleted or added to $$$p$$$ to obtain $$$p'$$$, only the order could be changed.

Now Polycarp asks you to help him to implement the password check module. Given the password $$$p$$$ and the hash $$$h$$$, check that $$$h$$$ can be the hash for the password $$$p$$$.

Your program should answer $$$t$$$ independent test cases.

Input:

The first line contains one integer $$$t$$$ ($$$1 \le t \le 100$$$) — the number of test cases.

The first line of each test case contains a non-empty string $$$p$$$, consisting of lowercase Latin letters. The length of $$$p$$$ does not exceed $$$100$$$.

The second line of each test case contains a non-empty string $$$h$$$, consisting of lowercase Latin letters. The length of $$$h$$$ does not exceed $$$100$$$.

Output:

For each test case print the answer to it — "YES" if the given hash $$$h$$$ could be obtained from the given password $$$p$$$ or "NO" otherwise.

Sample Input:

5
abacaba
zyxaabcaabkjh
onetwothree
threetwoone
one
zzonneyy
one
none
twenty
ten

Sample Output:

YES
YES
NO
YES
NO

Note:

The first test case is explained in the statement.

In the second test case both $$$s_1$$$ and $$$s_2$$$ are empty and $$$p'=$$$ "threetwoone" is $$$p$$$ shuffled.

In the third test case the hash could not be obtained from the password.

In the fourth test case $$$s_1=$$$ "n", $$$s_2$$$ is empty and $$$p'=$$$ "one" is $$$p$$$ shuffled (even thought it stayed the same).

In the fifth test case the hash could not be obtained from the password.

Informação

Codeforces

Provedor Codeforces

Código CF1278A

Tags

brute forceimplementationstrings

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Datas 09/05/2023 09:57:21

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