Problem
A 考级202206-1：倒序输出
B 考级202206-2：平方差计算
C 考级202206-3：最小的数
D 考级202206-4：计算成绩优秀的人数
E 考级202206-5：开关灯

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还有一级（第9轮）

Status: Done
Rule: ACM/ICPC
Problem: 5
Start at: 2023-7-30 22:15
End at: 2023-8-19 2:15
Duration: 460 hour(s)
Host: aging
Partic.: 13