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CF2131C.Make it Equal
Make it Equal
Given two multisets and of size and a positive integer , you may perform the following operations any number (including zero) of times on :
- Select an element in , and remove one occurrence of in . Then, either insert into , or insert into .
Determine if it is possible to make equal to . Two multisets and are equal if every element appears the same number of times in and .
Input
Each test contains multiple test cases. The first line contains an integer () — the number of test cases. The description of the test cases follows.
The first line contains two integers and (, ) — the size of and the constant, respectively.
The second line contains integers () — the elements in .
The third line contains integers () — the elements in .
It is guaranteed that the sum of over all test cases does not exceed .
Output
For each test case, output "YES" if it is possible to make equal to , and "NO" otherwise.
You can output the answer in any case (upper or lower). For example, the strings "yEs", "yes", "Yes", and "YES" will be recognized as positive responses.
Note
In the first test case, we can remove one occurrence of from and insert into , making equal to .
In the second test case, we can remove one occurrence of from and insert into , making equal to .
In the last test case, we can show that it is impossible to make equal to .
Samples
5
1 3
1
2
1 8
4
12
3 5
6 2 9
8 4 11
2 7
2 8
2 9
3 2
0 1 0
1 0 1
YES
YES
YES
NO
NO
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