Codeforces Round 887 (Div. 1)
B
Imbalanced Arrays
Codeforces
1800
原题
← AC →
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Ntarsis has come up with an array $a$ of $n$ non-negative integers.

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Call an array $b$ of $n$ integers imbalanced if it satisfies the following:

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  • $-n\le b_i\le n$, $b_i \ne 0$,
  • there are no two indices $(i, j)$ ($1 \le i, j \le n$) such that $b_i + b_j = 0$,
  • for each $1 \leq i \leq n$, there are exactly $a_i$ indices $j$ ($1 \le j \le n$) such that $b_i+b_j \gt 0$, where $i$ and $j$ are not necessarily distinct.
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Given the array $a$, Ntarsis wants you to construct some imbalanced array. Help him solve this task, or determine it is impossible.

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Input

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Each test contains multiple test cases. The first line contains the number of test cases $t$ ($1 \le t \le 10^5$). The description of the test cases follows.

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The first line of each test case has a single integer $n$ ($1 \leq n \leq 10^5$).

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The next line contains $n$ integers $a_1, a_2, \ldots, a_n$ ($0 \leq a_i \leq n$).

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It is guaranteed that the sum of $n$ across all test cases does not exceed $10^5$.

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Output

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For each test case, output "NO" if there exists no imbalanced array.

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Otherwise, output "YES". Then, on the next line, output $n$ integers $b_1, b_2, \ldots, b_n$ where $b_i \neq 0$ for all $1 \leq i \leq n$ — an imbalanced array.

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Note

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For the first test case, $b = [1]$ is an imbalanced array. This is because for $i = 1$, there is exactly one $j$ ($j = 1$) where $b_1 + b_j \gt 0$.

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For the second test case, it can be shown that there exists no imbalanced array.

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For the third test case, $a = [0, 1, 0]$. The array $b = [-3, 1, -2]$ is an imbalanced array.

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  • For $i = 1$ and $i = 3$, there exists no index $j$ such that $b_i + b_j \gt 0$.
  • For $i = 2$, there is only one index $j = 2$ such that $b_i + b_j \gt 0$ ($b_2 + b_2 = 1 + 1 = 2$).
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Another possible output for the third test case could be $b = [-2, 1, -3]$.

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样例

Input #1
5
1
1
4
1 4 3 4
3
0 1 0
4
4 3 2 1
3
1 3 1
Output #1
YES
1
NO
YES
-3 1 -2
YES
4 2 -1 -3
YES
-1 3 -1
InputCopy OutputCopy
题目信息
题号
1852B
时间限制
2 s
内存限制
256 MB
标签
构造
图论
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数学
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