Problem
A [ROI 2023] 监控 (Day 1)
B [HNOI2007] 梦幻岛宝珠
C [SCOI2016] 背单词

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短时训练1

Status: Done
Rule: IOI
Problem: 3
Start at: 2026-1-6 8:00
End at: 2026-1-7 17:00
Duration: 3 hour(s)
Host: lqc
Partic.: 9