Codeforces Global Round 17
E
AmShZ and G.O.A.T.
Codeforces
2300
原题
← DF →
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Let's call an array of $k$ integers $c_1, c_2, \ldots, c_k$ terrible, if the following condition holds:

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  • Let $AVG$ be the $\frac{c_1 + c_2 + \ldots + c_k}{k}$(the average of all the elements of the array, it doesn't have to be integer). Then the number of elements of the array which are bigger than $AVG$ should be strictly larger than the number of elements of the array which are smaller than $AVG$. Note that elements equal to $AVG$ don't count.For example $c = \{1, 4, 4, 5, 6\}$ is terrible because $AVG = 4.0$ and $5$-th and $4$-th elements are greater than $AVG$ and $1$-st element is smaller than $AVG$.
翻译中…

Let's call an array of $m$ integers $b_1, b_2, \ldots, b_m$ bad, if at least one of its non-empty subsequences is terrible, and good otherwise.

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You are given an array of $n$ integers $a_1, a_2, \ldots, a_n$. Find the minimum number of elements that you have to delete from it to obtain a good array.

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An array is a subsequence of another array if it can be obtained from it by deletion of several (possibly, zero or all) elements.

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Input

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The first line contains an integer $t$ ($1 \le t \le 10^4$) — the number of test cases. The description of test cases follows.

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

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The second line of each testcase contains $n$ integers $a_1, a_2, \ldots, a_n$ ($1 \le a_i \le 10^9$) — elements of array $a$.

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In each testcase for any $1 \le i \lt n$ it is guaranteed that $a_i \le a_{i+1}$.

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It is guaranteed that the sum of $n$ over all testcases doesn't exceed $2 \cdot 10^5$.

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Output

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For each testcase, print the minimum number of elements that you have to delete from it to obtain a good array.

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Note

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In the first sample, the array $a$ is already good.

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In the second sample, it's enough to delete $1$, obtaining array $[4, 4, 5, 6]$, which is good.

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样例

Input #1
4
3
1 2 3
5
1 4 4 5 6
6
7 8 197860736 212611869 360417095 837913434
8
6 10 56026534 405137099 550504063 784959015 802926648 967281024
Output #1
0
1
2
3
InputCopy OutputCopy
题目信息
题号
1610E
时间限制
1 s
内存限制
256 MB
标签
二分
暴力
贪心
模拟
数学

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