Time Limit: 3s → 4s
QOJ.ac
QOJ
Time Limit:
3 s
Memory Limit:
2048 MB
Total points:
100
Interactive
Hackable ✓
NOI 2022 Day 1
C. 树上邻域数点
This problem is prepared by
zx2003 .
Time Limit: 3s → 4s