Problem
A [HNOI2002] 营业额统计
B [WFOI - 01] 硬币（coin）
C 赌神：决斗

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二分数学test

Status: Done
Rule: IOI
Problem: 3
Start at: 2025-10-12 16:35
End at: 2025-10-12 16:38
Duration: 0.1 hour(s)
Host: h_h
Partic.: 12