Problem
A 最小的数
B 小写字母的判断
C A除以B
D 成绩等级转换
E 判断是否存在重复的数

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控制结构小测（二）

Status: Done
Rule: IOI
Problem: 5
Start at: 2025-11-16 9:00
End at: 2025-11-16 11:00
Duration: 1.5 hour(s)
Host: admin
Partic.: 16