atcoder#ABC260E. [ABC260E] At Least One
[ABC260E] At Least One
Score : points
Problem Statement
You are given an integer and pairs of integers . For all , it holds that .
A sequence is said to be a good sequence if the following conditions are satisfied:
- is a contiguous subsequence of the sequence .
- For all , contains at least one of and .
Let be the number of possible good sequences of length . Enumerate .
Constraints
- All values in input are integers.
Input
Input is given from Standard Input in the following format:
Output
Print the answers in the following format:
3 5
1 3
1 4
2 5
0 1 3 2 1
Here is the list of all possible good sequences.
1 2
1 2
2 1
5 9
1 5
1 7
5 6
5 8
2 6
0 0 1 2 4 4 3 2 1