#BZOJ2350. Tree Mirroring
-
ID: 791
Type: RemoteJudge
1000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
root
Tree Mirroring
No submission language available for this problem.
输入格式
7 7
1 2
2 3
3 4
4 5
5 6
6 7
7 1
NO