QOJ.ac
QOJ
Time Limit:
1 s
Memory Limit:
256 MB
Total points:
100
# 8153. 树形交通网络
统计
The problem was used in the following contest:
This problem is missing from the official archive. This omission may be due to several potential reasons: ambiguity in the problem statement, inaccuracies in the test cases, or errors in the official solution. As such, this problem is provided here solely for reference purposes and is not recommended for attempts at solving.