Codeforces Round 418 (Div. 2)
B
An express train to reveries
Codeforces
1300
原题
← AC →
翻译中…

Sengoku still remembers the mysterious "colourful meteoroids" she discovered with Lala-chan when they were little. In particular, one of the nights impressed her deeply, giving her the illusion that all her fancies would be realized.

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On that night, Sengoku constructed a permutation $*p*_{1}, *p*_{2}, ..., *p*_{*n*}$ of integers from $1$ to $*n*$ inclusive, with each integer representing a colour, wishing for the colours to see in the coming meteor outburst. Two incredible outbursts then arrived, each with $*n*$ meteorids, colours of which being integer sequences $*a*_{1}, *a*_{2}, ..., *a*_{*n*}$ and $*b*_{1}, *b*_{2}, ..., *b*_{*n*}$ respectively. Meteoroids' colours were also between $1$ and $*n*$ inclusive, and the two sequences were not identical, that is, at least one $*i*$ ($1 ≤ *i* ≤ *n*$) exists, such that $*a*_{*i*} ≠ *b*_{*i*}$ holds.

翻译中…

Well, she almost had it all — each of the sequences $*a*$ and $*b*$ matched exactly $*n* - 1$ elements in Sengoku's permutation. In other words, there is exactly one $*i*$ ($1 ≤ *i* ≤ *n*$) such that $*a*_{*i*} ≠ *p*_{*i*}$, and exactly one $*j*$ ($1 ≤ *j* ≤ *n*$) such that $*b*_{*j*} ≠ *p*_{*j*}$.

翻译中…

For now, Sengoku is able to recover the actual colour sequences $*a*$ and $*b*$ through astronomical records, but her wishes have been long forgotten. You are to reconstruct any possible permutation Sengoku could have had on that night.

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Input

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The first line of input contains a positive integer $*n*$ ($2 ≤ *n* ≤ 1 000$) — the length of Sengoku's permutation, being the length of both meteor outbursts at the same time.

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The second line contains $*n*$ space-separated integers $*a*_{1}, *a*_{2}, ..., *a*_{*n*}$ ($1 ≤ *a*_{*i*} ≤ *n*$) — the sequence of colours in the first meteor outburst.

翻译中…

The third line contains $*n*$ space-separated integers $*b*_{1}, *b*_{2}, ..., *b*_{*n*}$ ($1 ≤ *b*_{*i*} ≤ *n*$) — the sequence of colours in the second meteor outburst. At least one $*i*$ ($1 ≤ *i* ≤ *n*$) exists, such that $*a*_{*i*} ≠ *b*_{*i*}$ holds.

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Output

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Output $*n*$ space-separated integers $*p*_{1}, *p*_{2}, ..., *p*_{*n*}$, denoting a possible permutation Sengoku could have had. If there are more than one possible answer, output any one of them.

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Input guarantees that such permutation exists.

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Note

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In the first sample, both $1, 2, 5, 4, 3$ and $1, 2, 3, 4, 5$ are acceptable outputs.

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In the second sample, $5, 4, 2, 3, 1$ is the only permutation to satisfy the constraints.

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样例

Input #1
5
1 2 3 4 3
1 2 5 4 5
Output #1
1 2 5 4 3
InputCopy OutputCopy
Input #2
5
4 4 2 3 1
5 4 5 3 1
Output #2
5 4 2 3 1
InputCopy OutputCopy
Input #3
4
1 1 3 4
1 4 3 4
Output #3
1 2 3 4
InputCopy OutputCopy
题目信息
题号
814B
时间限制
1 s
内存限制
256 MB
标签
构造

题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。