J-G, thanks for the problem. Could you add some more information about expected inputs and outputs? An example and some more tests would be helpful too. If your test suite has exactly one test, it's trivial to write a correct answer.
Back to basics 4 - Search Path
Swap two numbers
Find maximum value of a curve
Flip the vector from right to left
Number of problems
Remove element(s) from cell array
Wayfinding 2 - traversing
Insert structure in a parameter-cell array.
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