Problem
A 「UOI R2」飞花令
B 「UOI R2」时间规划
C 「UOI R2」力量
D 「UOI R2」写诗

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UOI-R2重现赛

Status: Done
Rule: IOI
Problem: 4
Start at: 2023-8-5 8:00
End at: 2023-8-6 0:00
Duration: 16 hour(s)
Host: 梁泽贤 (liangzexian)
Partic.: 11