#AT2458. F - Components
F - Components
F - Components
Score : $500$ points
Problem Statement
You are given a tree with $N$ vertices. The vertices are numbered $1$ through $N$, and the $i$-th edge connects vertex $a_i$ and vertex $b_i$.
Solve the following problem for each $x=1,2,\ldots,N$:
- There are $(2^N-1)$ non-empty subsets $V$ of the tree's vertices. Find the number, modulo $998244353$, of such $V$ that the subgraph induced by $V$ has exactly $x$ connected components.
What is an induced subgraph?
Let $S$ be the subset of the vertices of a graph $G$; then the subgraph of $G$ induced by $S$ is a graph whose vertex set is $S$ and whose edge set consists of all edges of $G$ whose both ends are contained in $S$.Constraints
- $1 \leq N \leq 5000$
- $1 \leq a_i \lt b_i \leq N$
- The given graph is a tree.
Input
The input is given from Standard Input in the following format:
Output
Print $N$ lines.
The $i$-th line should contain the answer for $x=i$.
4
1 2
2 3
3 4
10
5
0
0
The induced subgraph will have two connected components in the following five cases and one in the others.
- $V = \{1,2,4\}$
- $V = \{1,3\}$
- $V = \{1,3,4\}$
- $V = \{1,4\}$
- $V = \{2,4\}$
2
1 2
3
0
10
3 4
3 6
6 9
1 3
2 4
5 6
6 10
1 8
5 7
140
281
352
195
52
3
0
0
0
0
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