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1305:Immediate Decodability

题目描述
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.

Examples: Assume an alphabet that has symbols {A, B, C, D}

The following code is immediately decodable:
A:01 B:10 C:0010 D:0000

but this one is not:
A:01 B:10 C:010 D:0000 (Note that A is a prefix of C)
输入解释
Write a program that accepts as input a series of groups of records from input. Each record in a group contains a collection of zeroes and ones representing a binary code for a different symbol. Each group is followed by a single separator record containing a single 9; the separator records are not part of the group. Each group is independent of other groups; the codes in one group are not related to codes in any other group (that is, each group is to be processed independently).
输出解释
For each group, your program should determine whether the codes in that group are immediately decodable, and should print a single output line giving the group number and stating whether the group is, or is not, immediately decodable.
输入样例
01
10
0010
0000
9
01
10
010
0000
9
输出样例
Set 1 is immediately decodable
Set 2 is not immediately decodable
来自杭电HDUOJ的附加信息
Recommend Eddy

该题目是Virtual Judge题目,来自 杭电HDUOJ

题目来源 Pacific Northwest 1998

源链接: HDU-1305

最后修改于 2020-10-25T22:43:46+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
2000/1000MS(Java/Others) 65536/32768K(Java/Others)