I don't know why this is flagged.
It should be one of the tests, but the problem creator specifically requested the flip function not be used. It should be a test case to check for flip() though.
Is this allowed to not used end?
Obey the direction
"Request not to use direct function."
@Bertopedro MATLAB permits omitting the end keyword for a function for reasons of backward compatibility, but one shouldn't do it. On Cody, I believe there's no difference in terms of size, so there's never any reason to omit it.
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