Problem
A 考级202106-1：数的输入和输出
B 考级202106-2：(a/b)*c 的值
C 考级202106-3：大写字母的判断
D 考级202106-4：特殊求和
E 考级202106-5：硬币翻转

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一级比赛第三轮

Status: Done
Rule: ACM/ICPC
Problem: 5
Start at: 2023-7-25 10:30
End at: 2023-8-19 10:30
Duration: 600 hour(s)
Host: aging
Partic.: 20