Problem
A 「HCOI-R1」报名人数
B 似巨龙高歌
C 「HCOI-R1」孤独的 sxz
D 陌路寻诗礼

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1010

Status: Done
Rule: Ledo
Problem: 4
Start at: 2025-10-10 14:00
End at: 2025-10-10 17:00
Duration: 3 hour(s)
Host: hey_muzili
Partic.: 87