题库练习 Gluttony
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A11418 | Gluttony

时间限制1s
内存限制256MB
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题目描述

You are given an array $a$ with $n$ distinct integers. Construct an array $b$ by permuting $a$ such that for every non-empty subset of indices $S={x_{1},x_{2},...,x_{k}}$ ( $1<=x_{i}<=n$ , $0<k<n$ ) the sums of elements on that positions in $a$ and $b$ are different, i. e.

![](/uploads/acgo/image/8c3b9e134175a714_2009e28310da.jpeg)

输入格式

The first line contains one integer $n$ ( $1<=n<=22$ ) — the size of the array.

The second line contains $n$ space-separated distinct integers $a_{1},a_{2},...,a_{n}$ ( $0<=a_{i}<=10^{9}$ ) — the elements of the array.

输出格式

If there is no such array $b$ , print -1.

Otherwise in the only line print $n$ space-separated integers $b_{1},b_{2},...,b_{n}$ . Note that $b$ must be a permutation of $a$ .

If there are multiple answers, print any of them.

输入输出样例

输入 #1
2
1 2
输出 #1
2 1 
输入 #2
4
1000 100 10 1
输出 #2
100 1 1000 10
C++ 编辑器
输入
输出