Hello 2023
B
MKnez's ConstructiveForces Task
Codeforces
900
原题
← AC →
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MKnez wants to construct an array $s_1,s_2, \ldots , s_n$ satisfying the following conditions:

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  • Each element is an integer number different from $0$;
  • For each pair of adjacent elements their sum is equal to the sum of the whole array.
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More formally, $s_i \neq 0$ must hold for each $1 \leq i \leq n$. Moreover, it must hold that $s_1 + s_2 + \cdots + s_n = s_i + s_{i+1}$ for each $1 \leq i \lt n$.

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Help MKnez to construct an array with these properties or determine that it does not exist.

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Input

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Each test contains multiple test cases. The first line contains the number of test cases $t$ ($1 \leq t \leq 100$). The description of the test cases follows.

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The only line of each test case contains a single integer $n$ ($2 \leq n \leq 1000$) — the length of the array.

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Output

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For each test case, print "YES" if an array of length $n$ satisfying the conditions exists. Otherwise, print "NO". If the answer is "YES", on the next line print a sequence $s_1,s_2, \ldots, s_n$ satisfying the conditions. Each element should be a non-zero integer in the range $[-5000,5000]$, i. e. $-5000 \leq s_i \leq 5000$ and $s_i \neq 0$ should hold for each $1 \leq i \leq n$.

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It can be proved that if a solution exists then there also exists one which satisfies the additional constraints on the range.

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If there are several correct answers, print any of them.

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Note

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In the first test case, $[9,5]$ is a valid answer since $9+5$ (the sum of the two adjacent elements $s_1+s_2$) is equal to $9+5$ (the sum of all elements). Other solutions include $[6,-9], [-1,-2], [-5000,5000], \ldots$

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For the second test case, let us show why some arrays do not satisfy the constraints:

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  • $[1,1,1]$ — $s_1+s_2 = 1+1 = 2$ and $s_1+s_2+s_3=1+1+1 = 3$ differ;
  • $[1,-1,1]$ — $s_1+s_2=1+(-1)=0$ and $s_1+s_2+s_3=1+(-1)+1 = 1$ differ;
  • $[0,0,0]$ — The array $s$ cannot contain a $0$.
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This is not a proof, but it can be shown that the answer is "NO".

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样例

Input #1
2
2
3
Output #1
YES
9 5
NO
InputCopy OutputCopy
题目信息
题号
1779B
所属比赛
时间限制
1 s
内存限制
256 MB
标签
构造
数学

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。