The problem description is broken(?) and you have mentioned the code in the test suite (you might want to remove that)
The test suite has had the "solution" code removed. The description was also cleaned up. (If it's not loading, simply reload the page.) I'm not sure how much these fixes help, though...
Back to basics 19 - character types
Duplicate each element of a vector.
Duplicate a character
Create a vector
Strange Number Algorithms
Is this number Munchhausen Narcissistic?
Convert a Cell Array into an Array
Tony's trick for duplicating an mx1 vector n times
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