AtCoder Beginner Contest 419
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Problem Statement
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You are given a simple connected undirected graph with $N$ vertices numbered $1$ to $N$ and $M$ edges. The $i$-th edge connects vertices $u_i$ and $v_i$.
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For each $k=1,2,\ldots,N-1$, find the number of simple paths from vertex $1$ to vertex $N$ that contain exactly $k$ edges.
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Constraints
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$2\leq N\leq 2\times 10^5$$N-1\leq M\leq N+20$$1\leq u_i\lt v_i\leq N$- The given graph is a simple connected undirected graph.
- All input values are integers.
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Input
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The input is given from Standard Input in the following format:
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N M
u_1 v_1
u_2 v_2
\vdots
u_M v_M
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Output
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Output the answers in the following format:
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\mathrm{ans}_1 \mathrm{ans}_2 \ldots \mathrm{ans}_{N-1}
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$\mathrm{ans}_i$ is the number of simple paths from vertex $1$ to vertex $N$ that contain exactly $i$ edges.
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样例
Input #1
5 6
1 2
1 3
2 4
3 4
3 5
4 5
Output #1
0 1 2 1
For each $k=1,2,3,4$, the simple paths from vertex $1$ to vertex $5$ that contain exactly $k$ edges are as follows.
- $k=1$ : None
- $k=2$ : $1\to 3\to 5$
- $k=3$ : $1\to 2\to 4\to 5$ and $1\to 3\to 4\to 5$
- $k=4$ : $1\to 2\to 4\to 3\to 5$
Input #2
11 15
1 2
1 3
2 3
3 4
3 5
4 5
5 6
5 7
6 7
7 8
7 9
8 9
9 10
9 11
10 11
Output #2
0 0 0 0 1 5 10 10 5 1
Input #3
7 18
6 7
4 5
1 7
2 7
1 4
2 5
4 6
2 3
5 6
5 7
1 5
2 4
2 6
1 2
1 3
3 4
1 6
3 5
Output #3
1 3 11 29 50 42
题目信息
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。