Problem
A 数学题（math.cpp)
B 能量字符（char.cpp)
C 海港
D 损坏的城市(damage.cpp)

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2023CPS-J 测试１

Status: Done
Rule: IOI
Problem: 4
Start at: 2023-10-3 9:00
End at: 2023-10-7 13:00
Duration: 100 hour(s)
Host: zhouyou
Partic.: 13