CF1822D.Super-Permutation
普及/提高-
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题目描述
A permutation is a sequence n integers, where each integer from 1 to n appears exactly once. For example, [1] , [3,5,2,1,4] , [1,3,2] are permutations, while [2,3,2] , [4,3,1] , [0] are not.
Given a permutation a , we construct an array b , where bi=(a1+a2+ … +ai)modn .
A permutation of numbers [a1,a2,…,an] is called a super-permutation if [b1+1,b2+1,…,bn+1] is also a permutation of length n .
Grisha became interested whether a super-permutation of length n exists. Help him solve this non-trivial problem. Output any super-permutation of length n , if it exists. Otherwise, output −1 .
输入格式
The first line contains a single integer t ( 1≤t≤104 ) — the number of test cases. The description of the test cases follows.
Each test case consists of a single line containing one integer n ( 1≤n≤2⋅105 ) — the length of the desired permutation.
The sum of n over all test cases does not exceed 2⋅105 .
输出格式
For each test case, output in a separate line:
- n integers — a super-permutation of length n , if it exists.
- −1 , otherwise.
If there are several suitable permutations, output any of them.
输入输出样例
输入#1
4 1 2 3 6
输出#1
1 2 1 -1 6 5 2 3 4 1