Time Limit: 3s → 4s
QOJ.ac
QOJ
Time Limit:
3 s
Memory Limit:
2048 MB
Total points:
100
Interactive
Hackable ✓
Ynoi 2003
F. 树上邻域数点
This problem is prepared by
zx2003 .
Time Limit: 3s → 4s