Problem
A [例5.8]彩票摇奖
B [例5.9]神奇的幻方
C [例5.10]显示屏
D [习5.1]梦中的统计
E 珠心算测验
F [例5.4]校门外的树

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龙凤苑中学4月15日练习赛

Status: Done
Rule: IOI
Problem: 6
Start at: 2026-4-15 16:00
End at: 2026-4-16 16:00
Duration: 24 hour(s)
Host: lfy24
Partic.: 14