Generate the following vector：
elseif n=2 then
q=[2 2 1];
elseif n=3 then
q=[3 3 3 2 2 1];
Did I do it right?
regexp hacks are not cool. Please disallow them in the Test Suite.
How to find the position of an element in a vector without using the find function
Determine Whether an array is empty
How many trades represent all the profit?
sum of non-primes
Compute LOG(1+X) in natural log
Find the repeating elements and repetitions of a row vector.
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