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CF2001A.Make All Equal
Make All Equal
You are given a cyclic array .
You can perform the following operation on at most times:
- Let be the current size of , you can choose any two adjacent elements where the previous one is no greater than the latter one (In particular, and are adjacent and is the previous one), and delete exactly one of them. In other words, choose an integer () where holds, and delete exactly one of or from .
Your goal is to find the minimum number of operations needed to make all elements in equal.
Input
Each test contains multiple test cases. The first line contains the number of test cases (). The description of the test cases follows.
The first line of each test case contains a single integer () — the length of the array .
The second line of each test case contains integers () — the elements of array .
Output
For each test case, output a single line containing an integer: the minimum number of operations needed to make all elements in equal.
Note
In the first test case, there is only one element in , so we can't do any operation.
In the second test case, we can perform the following operations to make all elements in equal:
- choose , delete , then would become .
- choose , delete , then would become .
It can be proven that we can't make all elements in equal using fewer than operations, so the answer is .
Samples
7
1
1
3
1 2 3
3
1 2 2
5
5 4 3 2 1
6
1 1 2 2 3 3
8
8 7 6 3 8 7 6 3
6
1 1 4 5 1 4
0
2
1
4
4
6
3
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