AtCoder Beginner Contest 160
F
Distributing Integers
AtCoder
⌀ 2048
原题
← E→
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Problem Statement

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We have a tree with $N$ vertices numbered $1$ to $N$. The $i$-th edge in this tree connects Vertex $a_i$ and $b_i$. For each $k=1, ..., N$, solve the problem below:

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  • Consider writing a number on each vertex in the tree in the following manner:
  • First, write $1$ on Vertex $k$.
    • Then, for each of the numbers $2, ..., N$ in this order, write the number on the vertex chosen as follows:
    • Choose a vertex that still does not have a number written on it and is adjacent to a vertex with a number already written on it. If there are multiple such vertices, choose one of them at random.
  • Find the number of ways in which we can write the numbers on the vertices, modulo $(10^9+7)$.
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Constraints

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  • $2 \leq N \leq 2 \times 10^5$
  • $1 \leq a_i,b_i \leq N$
  • The given graph is a tree.
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Input

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Input is given from Standard Input in the following format:

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N
a_1 b_1
:
a_{N-1} b_{N-1}

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Output

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For each $k=1, 2, ..., N$ in this order, print a line containing the answer to the problem.

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样例

Input #1
3
1 2
1 3
Output #1
2
1
1
The graph in this input is as follows: ![Figure](https://img.atcoder.jp/ghi/1c88b0eb716ba399b1c5d6565ab62337.png) For $k=1$, there are two ways in which we can write the numbers on the vertices, as follows: - Writing $1, 2, 3$ on Vertex $1, 2, 3$, respectively - Writing $1, 3, 2$ on Vertex $1, 2, 3$, respectively
Input #2
2
1 2
Output #2
1
1
The graph in this input is as follows: ![Figure](https://img.atcoder.jp/ghi/c47c7798f88e7bfec30fbd664dc9ad50.png)
Input #3
5
1 2
2 3
3 4
3 5
Output #3
2
8
12
3
3
The graph in this input is as follows: ![Figure](https://img.atcoder.jp/ghi/e9c09403f8d96ae4e679a226993defa6.png)
Input #4
8
1 2
2 3
3 4
3 5
3 6
6 7
6 8
Output #4
40
280
840
120
120
504
72
72
The graph in this input is as follows: ![Figure](https://img.atcoder.jp/ghi/a85459a03d436560bfe2e911d8cec4e6.png)
题目信息
题号
abc160_f
时间限制
3 s
内存限制
1024 MB

题面与样例版权归 AtCoder 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。