it's a bit unclear why padding is necessary in the first two test cases, where the number of characters (15) is already a multiple of the key size (3 or 5, respectively)
Find the longest sequence of 1's in a binary sequence.
Find the sum of the elements in the "second" diagonal
Back to basics 10 - Max Float
Find a real root of a quintic function
Fill the matrix - 1
unique with nan
Challenging perms function!
Calculate F statistics ( One-way Analysis of Variance)
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