XVIII Open Cup named after E.V. Pankratiev. Grand Prix of Eurasia

Problem A

Solved by Xiejiadong. 0:09 (+)

Problem B

Solved by Xiejiadong. 0:26 (+)

Problem C

Unsolved.

Problem D

Solved by Kilo_5723. 2:48 (+)

Problem E

Unsolved.

Problem F

Unsolved.

Problem G

Unsolved.

Problem H

Solved by Weaver_zhu. 1:22 (+3)

Problem I

Unsolved.

Problem J

Solved by Kilo_5723. 2:34 (+9)

Problem K

Unsolved.

Problem L

Solved by Xiejiadong. 3:20 (+2)

题意：尽可能多的提取 UTF-8 编码的字符，并且解码。

题解：可以发现 UTF-8 编码决定了每一个字节只能属于其中一种类型，所以可以直接暴力。

对于每一个位作为开头，判断是否可以作为 UTF-8 编码。

对于每一个可行的编码段，记录下来。判断是否连续，对于连续的长度 $\ge 3$ 的段进行输出。

不知道第一次的做法哪里有问题。重构了一遍就过了。