Problem
A 集合
B 出租
C 连通块
D 跳棋

According to the contest rules, you cannot view your submission details at current.

Oh, there is no clarification!

NOIP5测

Status: Done
Rule: OI
Problem: 4
Start at: 2024-11-16 8:00
End at: 2024-11-16 12:30
Duration: 4.5 hour(s)
Host: root
Partic.: 11