Test 4 is wrong; y_correct should be [1; 2; 4]
I´m afraid all tests are correct. But thanks anyway!
Longest run of consecutive numbers
Find the index of n in magic(n)
Sum of the Matrix Elements
Values in Array
Get the mean digit
Alternate list of elements
Ratio between sums of prime and non-prime numbers
Ratio between sum of primes and sum of factors
Sum of a geometric series
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