Codeforces Round 906 (Div. 2)
A
Doremy's Paint 3
Codeforces
800
原题
←B →
翻译中…

An array $b_1, b_2, \ldots, b_n$ of positive integers is good if all the sums of two adjacent elements are equal to the same value. More formally, the array is good if there exists a $k$ such that $b_1 + b_2 = b_2 + b_3 = \ldots = b_{n-1} + b_n = k$.

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Doremy has an array $a$ of length $n$. Now Doremy can permute its elements (change their order) however she wants. Determine if she can make the array good.

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Input

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The input consists of multiple test cases. The first line contains a single integer $t$ ($1\le t\le 100$) — the number of test cases. The description of the test cases follows.

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The first line of each test case contains a single integer $n$ ($2 \le n \le 100$) — the length of the array $a$.

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The second line of each test case contains $ n $ integers $ a_1,a_2,\ldots,a_n $ ($1 \le a_i \le 10^5$).

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There are no constraints on the sum of $n$ over all test cases.

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Output

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For each test case, print "Yes" (without quotes), if it is possible to make the array good, and "No" (without quotes) otherwise.

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You can output the answer in any case (upper or lower). For example, the strings "yEs", "yes", "Yes", and "YES" will be recognized as positive responses.

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Note

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In the first test case, $[8,9]$ and $[9,8]$ are good.

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In the second test case, $[1,2,1]$ is good because $a_1+a_2=a_2+a_3=3$.

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In the third test case, it can be shown that no permutation is good.

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样例

Input #1
5
2
8 9
3
1 1 2
4
1 1 4 5
5
2 3 3 3 3
4
100000 100000 100000 100000
Output #1
Yes
Yes
No
No
Yes
InputCopy OutputCopy
题目信息
题号
1890A
时间限制
1 s
内存限制
256 MB
标签
构造

题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。