The test set should contain a polynomial with complex roots where the real part is positive, and a polynomial with a positive and a negative root.
Too less test cases
This removes only polinomials if all the roots are positive. Should read 'all' instead of 'any' here.
Spot the outlier
Get the elements of diagonal and antidiagonal for any m-by-n matrix
Sophie Germain prime
Replace multiples of 5 with NaN
Get the area codes from a list of phone numbers
Tic Tac Toe FTW
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