20243번 - Lost Permutation 스페셜 저지다국어인터랙티브

문제

You once had a permutation $\pi$ of size $n$. And now it's gone. All you have left is an old device you made while studying group theory. To try and recover $\pi$ you can input a permutation $f$ of size $n$ into this device. This device will then display a permutation $\pi^{-1} \circ f \circ \pi$. Find $\pi$ using at most two interactions with the device.

A permutation of size $n$ is a sequence of $n$ distinct integers from 1ドル$ to $n$. The composition of two permutations $a$ and $b$ is a permutation $a \circ b$ such that $(a \circ b)_i = b_{a_i}$. That is, if we consider a permutation as an action on $n$ elements, moving element at position $i$ to $a_i,ドル then $a \circ b$ is the action that applies $a,ドル then applies $b,ドル so that element at position $i$ first moves to $a_i,ドル then moves to $b_{a_i}$. Note that some definitions of composition use the reverse order.

The inverse permutation $\pi^{-1}$ is a permutation $\sigma$ such that $\sigma_{\pi_i} = i$. The composition of a permutation and its inverse is equal to an identity permutation: $(\pi \circ \pi^{-1})_i = (\pi^{-1} \circ \pi)_i = i$ for all $i$ from 1ドル$ to $n$. For example, if $a = (4, 1, 3, 2)$ and $b = (3, 2, 1, 4),ドル then $a \circ b = (4, 3, 1, 2),ドル $a^{-1} = (2, 4, 3, 1)$ and $a^{-1} \circ b \circ a = (1, 2, 4, 3)$.

입력

출력

제한

프로토콜

Your program has to process multiple test cases in a single run. First, the testing system writes $t,ドル the number of test cases ($t \ge 1$). Then, $t$ test cases should be processed one by one.

In each test case your program should start by reading the integer $n$ (3ドル \le n \le 10^4$), the size of permutation $\pi$. The sum of $n$ over all test cases does not exceed 10ドル^4$. Then, your program can make queries of two types:

• ? $f_1 ,円 f_2 ,円 \ldots ,円 f_n,ドル values $f_1, f_2, \ldots, f_n$ form a permutation of 1,ドル 2, \ldots, n$. The testing system responds with a permutation $g_1, g_2, \ldots, g_n,ドル where $g = \pi^{-1} \circ f \circ \pi$.
• ! $\pi_1 ,円 \pi_2 ,円 \ldots ,円 \pi_n$ --- your guess for the secret permutation.

You can use at most two queries of the first type in each test case. After your program makes a query of the second type, it should continue to the next test case (or exit if that test case was the last one).

노트

There are two test cases in the first test. In the first test case, $\pi = (4, 1, 3, 2)$ is the only permutation that satisfies $\pi^{-1} \circ (3, 2, 1, 4) \circ \pi = (1, 2, 4, 3)$ and $\pi^{-1} \circ (2, 4, 3, 1) \circ \pi = (2, 4, 3, 1)$. In the second test case, based on the interaction, $\pi$ can be equal to either $(1, 3, 2),ドル $(2, 1, 3),ドル or $(3, 2, 1)$. The solution got lucky and guessed the correct one: $(3, 2, 1)$.