@bmtran is a too strong for me.
I think that in case 3, the correct answer should be: y_correct1 = [1 0 2 9 1 -5 2 0 11] and in case 4: y_correct0 = [1 0 1 0], or did I misunderstood the goal?
I agree with J.R.! Menzinger. Correct answers given are wrong.
No, the provided answers in the test cases are correct. This is "the difficulty" that Jean-Marie mentions above: for integers that are tied by number of occurrences, they are to be sorted within the tied subset in ascending order, not kept in the original ordering within the vector.
Encode Roman Numerals
The Goldbach Conjecture, Part 2
Inner product of two vectors
Back to basics 6 - Column Vector
5 Prime Numbers
Rank of magic square (for beginners)
Divisors for big integer
Find files with extension ext in the current directory
Replicate elements in vectors
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