The problem statement should say what is and is not allowed for the solution, particularly if you're going to invalidate previously valid solutions.
Agree with Guillaume.
Only works for integer numbers.
I find it ironical that you disallow unique in the test suite, yet your own solution is just a roundabout way of calling unique
two guys, calm down, I also raise it by other people's solution
copy from Peng Liu, delete comments
Rotate a Matrix by 90 degrees
Reverse the elements of an array
Create an 'arrow-head" matrix
Convert Two Character String into a Binary Vector
Bell Number calculator
Extract part elements of matrix into one new matrix
Permute the unique values of a vector without sorting
Create a fixed format text output
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