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
Find relatively common elements in matrix rows
Clean the List of Names
Increment a number, given its digits
Back to basics 26 - Keywords
Matrix to column conversion
Extract part elements of matrix into one new matrix
Create a fixed format text output
Permute the unique values of a vector without sorting
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