First test case is invalid. Please fix it.
I have fixed it.
and the fourth...
It must be OK now!
Select every other element of a vector
Find number of days
Getting the indices from a matrice
Polite numbers. Politeness.
Van Eck's Sequence's nth member
Repeat string n times
Produce the following matrix
Challenging perms function!
Recaman Sequence - III
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