and I'm wondering why this solution is smaller in size than this: http://www.mathworks.com/matlabcentral/cody/problems/2312-how-many-solutions-has-this-problem/solutions/440185 O_o

Well, when you submit a solution, correct answer changes a little bit, isn't it? :-P

but my solution is also a general solution and has less operations in it. O_o

Thanks Marco! ;-)

José, I've mixed up scoring a little, sorry for that. But you'll probably be happy with an other update to the test suite.

HEHEHE nice!! ;-)

yes, this function is so useful it could be builtin, don't you think?

urlfilter is also available here: http://www.mathworks.com/matlabcentral/fileexchange/44751-url-filter

I had the function in my computer, so i added the code of "urlfilter" as a sub function to this other solution: http://www.mathworks.com/matlabcentral/cody/problems/2312-how-many-solutions-has-this-problem/solutions/440187 ;-)