The intersection (∩) of two sets (s1, s2) is the set of all
elements that are in s1 and are also in s2. Write a function
(intersect) that takes two lists as input (you can assume they have
no duplicate elements), and returns the intersection of those two
sets (as a list) without using the in operator or any built-in
functions, except for range() and len(). Write some code to test
your function, as well.
Note: Do not use the...