|| ||Code Submission Evaluation System
CSES Problem Set
Task | Statistics
CSES - Counting Paths
|Time limit:||1.00 s
||Memory limit:||512 MB|
You are given a tree that consists of $n$ nodes, and $m$ paths in the tree.
Your task is to calculate for each node the number of paths that contain the node.
The first input line contains integers $n$ and $m$: the number of nodes and paths. The nodes are numbered $1,2,\ldots,n$.
Then there are $n-1$ lines that describe the edges. Each line contains two integers $a$ and $b$: there is an edge between nodes $a$ and $b$.
Finally, there are $m$ lines that describe the paths. Each line contains two integers $a$ and $b$: there is a path between nodes $a$ and $b$.
Print $n$ integers: for each node $1,2,\ldots,n$, the number of paths that contain the node.
- $1 \le n, m \le 2 \cdot 10^5$
- $1 \le a,b \le n$
3 1 3 1 1