Problem
A 分发食物
B 历史
C 树
D 取石子游戏

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模拟赛第二场

Status: Done
Rule: IOI
Problem: 4
Start at: 2024-9-5 13:30
End at: 2024-9-5 17:30
Duration: 4 hour(s)
Host: root
Partic.: 15