P7314 [CF1851B] Parity Sort
入门
题目描述

You have an array of integers $a$ of length $n$. You can apply the following operation to the given array:

  • Swap two elements $a_i$ and $a_j$ such that $i \neq j$, $a_i$ and $a_j$ 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 $a$ = [$7, 10, 1, 3, 2$]. Then we can perform $3$ operations to sort the array:

  1. Swap $a_3 = 1$ and $a_1 = 7$, since $1$ and $7$ are odd. We get $a$ = [$1, 10, 7, 3, 2$];
  2. Swap $a_2 = 10$ and $a_5 = 2$, since $10$ and $2$ are even. We get $a$ = [$1, 2, 7, 3, 10$];
  3. Swap $a_4 = 3$ and $a_3 = 7$, since $3$ and $7$ are odd. We get $a$ = [$1, 2, 3, 7, 10$].

Input

The first line of input data contains a single integer $t$ ($1 \le t \le 10^4$) — the number of test cases.

The description of the test cases follows.

The first line of each test case contains one integer $n$ ($1 \le n \le 2 \cdot 10^5$) — the length of array $a$.

The second line of each test case contains exactly $n$ positive integers $a_1, a_2, \dots, a_n$ ($1 \le a_i \le 10^9$) — the elements of array $a$.

It is guaranteed that the sum of $n$ over all test cases does not exceed $2 \cdot 10^5$.

Output

For each test case, output on a separate line:

  • YES if the array can be sorted by applying the operation to it some number of times;
  • NO otherwise.

You can output YES and NO in any case (for example, strings yEs, yes, Yes and YES will be recognized as positive response).

输入格式

见题面 Input 部分

输出格式

见题面 Output 部分

样例输入
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
样例输出
YES YES NO NO YES NO
提示

The first test case is explained in the problem statement.