0
1
mirror of https://git.sb/baoshuo/OI-codes.git synced 2024-12-26 17:52:00 +00:00
OI-codes/LibreOJ/2431/data/hot2b.in

21 lines
99 B (Stored with Git LFS)
Plaintext

20
1 2
2 3
3 4
1 5
3 6
2 7
4 8
1 9
6 10
11 16
12 16
13 16
14 16
15 16
16 17
16 18
16 19
16 20
5 14