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CF1851B.Parity Sort
Parity Sort
You have an array of integers of length . You can apply the following operation to the given array:
- Swap two elements and such that , and are either both even or both odd.
Determine whether it is possible to sort the array in non-decreasing order by performing the operation any number of times (possibly zero).
For example, let = []. Then we can perform operations to sort the array:
- Swap and , since and are odd. We get = [];
- Swap and , since and are even. We get = [];
- Swap and , since and are odd. We get = [].
Input
The first line of input data contains a single integer () — the number of test cases.
The description of the test cases follows.
The first line of each test case contains one integer () — the length of array .
The second line of each test case contains exactly positive integers () — the elements of array .
It is guaranteed that the sum of over all test cases does not exceed .
Output
For each test case, output on a separate line:
YESif the array can be sorted by applying the operation to it some number of times;NOotherwise.
You can output YES and NO in any case (for example, strings yEs, yes, Yes and YES will be recognized as positive response).
Note
The first test case is explained in the problem statement.
Samples
6
5
7 10 1 3 2
4
11 9 3 5
5
11 3 15 3 2
6
10 7 8 1 2 3
1
10
5
6 6 4 1 6
YES
YES
NO
NO
YES
NO
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