Finding the intersection of arrays
Given two sorted arrays of length N, write a function to return the intersection of the arrays.
[1, 2, 3, 4], [1, 6, 3, 5] -> returns [1,3]
For simplicity, your algorithm can preserve duplicates (e.g. if 1 is listed/intersects twice across the arrays you can return 1 twice in your output array).
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