If you request a row vector in the problem description, the tests should expect a row vector, not a column vector.
why it fails??
Select every other element of a vector
Sums with Excluded Digits
Return elements unique to either input
Is the input divisible by 3?
Tony's trick for duplicating an mx1 vector n times
provide the numerical answer to these number questions...
Strange Number Algorithms
is the number happy?
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