#AT1895. C - Inverse of Permutation
C - Inverse of Permutation
C - Inverse of Permutation
Score : $300$ points
Problem Statement
We will call a sequence of length $N$ where each of $1,2,\dots,N$ occurs once as a permutation of length $N$.
Given a permutation of length $N$, $P = (p_1, p_2,\dots,p_N)$, print a permutation of length $N$, $Q = (q_1,\dots,q_N)$, that satisfies the following condition.
- For every $i$ $(1 \leq i \leq N)$, the $p_i$-th element of $Q$ is $i$.
It can be proved that there exists a unique $Q$ that satisfies the condition.
Constraints
- $1 \leq N \leq 2 \times 10^5$
- $(p_1,p_2,\dots,p_N)$ is a permutation of length $N$ (defined in Problem Statement).
- All values in input are integers.
Input
Input is given from Standard Input in the following format:
Output
Print the sequence $Q$ in one line, with spaces in between.
``` $q_1$ $q_2$ $\dots$ $q_N$ ```3
2 3 1
3 1 2
The permutation $Q=(3,1,2)$ satisfies the condition, as follows.
- For $i = 1$, we have $p_i = 2, q_2 = 1$.
- For $i = 2$, we have $p_i = 3, q_3 = 2$.
- For $i = 3$, we have $p_i = 1, q_1 = 3$.
3
1 2 3
1 2 3
If $p_i = i$ for every $i$ $(1 \leq i \leq N)$, we will have $P = Q$.
5
5 3 2 4 1
5 3 2 4 1