@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.
Return a list sorted by number of occurrences
Try 1.5.4: Celsius to Fahrenheit
Narcissistic number ?
Height of a right-angled triangle
Is it really a 5?
Numbers spiral diagonals (Part 2)
Generalised Hamming Number
Two functions (to be sure)
Sum of big primes without primes
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