Check if a given natural number is evil or not.
Read more at OEIS.
are test #3 and #4 correct?
Sorry Rifat, I've messed up test cases. Rescored now.
Arrays are not a natural number..for the tests I mean
@Lorenzo, the input to solution function is always a single number. I've used arrayfun to make multiple tests in a single test case.
I think Test 3 and 4 are (still) faulty. The functions "any" and "all" must be swapped.
Prime factor digits
Flip the main diagonal of a matrix
Replace multiples of 5 with NaN
Duplicate a character
Don't Try, give up and return NaN.
Postage stamp problem
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