Problem
A 「UOI-R1」询问
B 「UOI-R1」磁铁
C 「UOI-R1」智能推荐
D 「UOI-R1」求和

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UOI-R1重现赛

Status: Done
Rule: IOI
Problem: 4
Start at: 2023-8-6 8:00
End at: 2023-8-7 0:00
Duration: 16 hour(s)
Host: 梁泽贤 (liangzexian)
Partic.: 8