Problem
A 【例20.1】范围判断
B 【例20.2】收集瓶盖赢大奖
C 【例20.3】 0与1
D 练20.1 适合晨练
E 练20.2 判断是否为两位数
F 练20.3 开灯关灯
G 练20.4 判断点在第几象限
H 练20.5 点和正方形的关系

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Status: Done
Rule: ACM/ICPC
Problem: 8
Start at: 2024-12-29 8:00
End at: 2024-12-29 9:00
Duration: 1 hour(s)
Host: weilaicheng
Partic.: 6