A5488 | 「一本通 2.3 练习 1」Immediate Decodability

原文如下：

>An encoding of a set of symbols is said to be *immediately decodable* if no code for one symbol is the prefix of a code for another symbol. We will assume for this problem that all codes are in binary, that no two codes within a set of codes are the same, that each code has at least one bit and no more than ten bits, and that each set has at least two codes and no more than eight.

数字串只包含 $0,1$，记每个数字串长度为 $l$，则 $1\le l\le 10$。每组数据至少有 $2$ 个数字串，至多有 $8$ 个数字串。