The test suite already spoils the solution.
True. In general that should be avoided, although admittedly it's difficult here because if the correct answer were hard-coded, then changes to: (i) the hardware on which Cody runs; or (ii) the version of MATLAB that Cody employs may eventually invalidate it. Having said that, the Test Suite could still be tightened up (see e.g. Solution 1461085).
Find the sum of all the numbers of the input vector
Sorted highest to lowest?
First non-zero element in each column
07 - Common functions and indexing 4
multiply by three
Back to basics 23 - Triangular matrix
Back to basics 18 - justification
Back to basics 11 - Max Integer
7 segment LED display
Back to basics 22 - Rotate a matrix
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