You really need to supply more test cases if you want to go far in software engineering...
This is just lame, and without a proper test case.
Terrible test set.
like a joke
Find common elements in matrix rows
Make a random, non-repeating vector.
Change the sign of even index entries of the reversed vector
Generate pi using logarithm
Derivative of polynomial
Rotate a Matrix
Get the length of a given vector
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