Replicate each element of a row vector (with NaN) a constant number of times.
n=2, A=[1 2 3] -> [1 1 2 2 3 3]
n=0, A=[2 1] -> 
Finding Perfect Squares
Back to basics 16 - byte order
Back to basics 26 - Keywords
Fill a zeros matrix
Symmetry of vector
Without the French accent please!
Permute diagonal and antidiagonal
I lost the criteria...
Decrypt the cypher using XOR encryption (for beginners)
Mysterious digits operation (easy)
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