Codeforces Global Round 19
A
Sorting Parts
Codeforces
800
原题
←B →
翻译中…

You have an array $a$ of length $n$. You can exactly once select an integer $len$ between $1$ and $n - 1$ inclusively, and then sort in non-decreasing order the prefix of the array of length $len$ and the suffix of the array of length $n - len$ independently.

翻译中…

For example, if the array is $a = [3, 1, 4, 5, 2]$, and you choose $len = 2$, then after that the array will be equal to $[1, 3, 2, 4, 5]$.

翻译中…

Could it be that after performing this operation, the array will not be sorted in non-decreasing order?

翻译中…

Input

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There are several test cases in the input data. The first line contains a single integer $t$ ($1 \leq t \leq 100$) — the number of test cases. This is followed by the test cases description.

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The first line of each test case contains one integer $n$ ($2 \leq n \leq 10^4$) — the length of the array.

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The second line of the test case contains a sequence of integers $a_1, a_2, \ldots, a_n$ ($1 \leq a_i \leq 10^9$) — the array elements.

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It is guaranteed that the sum of $n$ over all test cases does not exceed $10^4$.

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Output

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For each test case of input data, output "YES" (without quotes), if the array may be not sorted in non-decreasing order, output "NO" (without quotes) otherwise. You can output each letter in any case (uppercase or lowercase).

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Note

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In the first test case, it's possible to select $len = 1$, then after operation, the array will not be sorted in non-decreasing order and will be equal to $[2, 1, 2]$.

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In the second test case, it's possible to select $len = 3$, then after operation, the array will not be sorted in non-decreasing order and will be equal to $[1, 2, 3, 1]$.

翻译中…

In the third test case, the array will be sorted in non-decreasing order for every possible $len$.

翻译中…

样例

Input #1
3
3
2 2 1
4
3 1 2 1
5
1 2 2 4 4
Output #1
YES
YES
NO
InputCopy OutputCopy
题目信息
题号
1637A
时间限制
1 s
内存限制
256 MB
标签
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