2019 CCPC Qinhuangdao Onsite Contest

Problem A

Solved by Kilo_5723. 01:45:25 (+)

Problem B

Unsolved.

Problem C

Unsolved.

Problem D

Solved by Xiejiadong. 00:02:50 (+)

题意：判断 $\frac{1}{n}$ 是否是一个有限小数。

题解：显然 $n$ 只能是 $2$ 和 $5$ 的倍数。

Problem E

Solved by Weaver_zhu && Kilo_5723. 03:27:20 (+)

Problem F

Solved by Xiejiadong. 02:35:01 (+5)

Problem G

Upsolved by Kilo_5723. (-3)

Problem H

Unsolved.

Problem I

Solved by Weaver_zhu. 00:49:05 (+)

Problem J

Solved by Xiejiadong. 00:44:40 (+2)

Problem K

Unsolved.

Problem L

Unsolved.