How can I improve this decoder

1 次查看（过去 30 天）

Sebastian Molina Sazo 2019-6-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/469098-how-can-i-improve-this-decoder

关闭： MATLAB Answer Bot 2021-8-20

I have to do a decoder for this code, I made one, but the final string (string3) come out with the letters in the order that the encode code gives. What can i do to have the original order of the string? thanks for the help.

%% This is the encode code

function [string1,code]=codificar(string)

b=double(string);

if b(end)<b(1)

[a,c]=sort(b,'descend');

else

[a,c]=sort(b);

end

string1=char(a+1);

code=c;

end

%% And this is what a made

function [string3]=decodificar(string2) % I put string2 and 3 to no confuse with the original string

a=double(string2);

if a(1)<=a(end)

[b,g]=sort(a);

else

[b,g]=sort(a,'descend');

end

string3=char(b-1);

code=g

end

2 个评论
显示无隐藏无

Walter Roberson 2019-6-27

You cannot return to the original order without knowing the code variable. Consider that bard and brad would have the same output string1, so string1 by itself is not enough information to recover the original string.

Sebastian Molina Sazo 2019-6-27