There is an error in the second problem of the test suite (also in the example) with an extra "[" on the second line of the "correct" melody.
Amazing how hard it is to get your test suite right on the first try. Thanks, and it looks like you're in the lead!
The last 3 tests are incorrect.
Dimensions of matrices being concatenated are not consistent.
I admit they look wrong, but the actual text in the MATLAB code runs properly. I just re-scored some answers and they worked fine. It must be some kind of HTML display problem. I'll check into it.
Swap the first and last columns
Back to basics 9 - Indexed References
How many trades represent all the profit?
Is X a Fibonacci Matrix?
Create a two dimensional zero matrix
Simulate one complete step in the Biham–Middleton–Levine traffic model
Make a run-length companion vector
Convert hex color specification to MATLAB RGB
Rotate and display numbered tile
Find the biggest empty box
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