@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.
Do you mind do explain in a different way? it is not clear for what exactly i should do. It miss 3 problems for me, but in any of them it is not clear the problem itself.
Find best placement for ordered dominoes (harder)
Flip the main diagonal of a matrix
We love vectorized solutions. Problem 1 : remove the row average.
Determine the number of odd integers in a vector
Sum of series I
Rank of magic square (for beginners)
Numbers spiral diagonals (Part 2)
Generalised Hamming Number
Longest Collatz Sequence
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