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1987:Decoding

题目描述
Chip and Dale have devised an encryption method to hide their (written) text messages. They first agree secretly on two numbers that will be used as the number of rows (R) and columns (C) in a matrix. The sender encodes an intermediate format using the following rules:
1. The text is formed with uppercase letters [A-Z] and <space>.
2. Each text character will be represented by decimal values as follows:
<space> = 0, A = 1, B = 2, C = 3, ..., Y = 25, Z = 26
The sender enters the 5 digit binary representation of the characters’ values in a spiral pattern along the matrix as shown below. The matrix is padded out with zeroes (0) to fill the matrix completely. For example, if the text to encode is: "ACM" and R=4 and C=4, the matrix would be filled in as follows:



The bits in the matrix are then concatenated together in row major order and sent to the receiver.
The example above would be encoded as: 0000110100101100

输入解释
The first line of input contains a single integer N, (1 ≤ N ≤ 1000) which is the number of datasets that follow.
Each dataset consists of a single line of input containing R (1<=R<=20), a space, C (1<=C<=20), a space, and a string of binary digits that represents the contents of the matrix (R * C binary digits).
The binary digits are in row major order.
输出解释
For each dataset, you should generate one line of output with the following values: The dataset number as a decimal integer (start counting at one), a space, and the decoded text message. You should throw away any trailing spaces and/or partial characters found while decoding.
输入样例
4
4 4 0000110100101100
5 2 0110000010
2 6 010000001001
5 5 0100001000011010110000010
输出样例
1 ACM
2 HI
3 HI
4 HI HO
来自杭电HDUOJ的附加信息
Recommend linle

该题目是Virtual Judge题目,来自 杭电HDUOJ

源链接: HDU-1987

最后修改于 2020-10-25T22:49:33+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
1000/500MS(Java/Others) 32768/32768K(Java/Others)