You must check every time the result. The only case the will be checked is the 3rd.
And you cannot use randi on the 4th and 5th test case, and then use a fixed correct answer ;-)
thanks ramon,I fixed
middleAsColumn: Return all but first and last element as a column vector
Sort the vector with the given index
stem and leaf plot
Vector to 3-Column Matrix
Matrix Construction I
Matrix to 3-Column Matrix
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