Thursday Code Puzzler: Intersection of Two Arrays
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Find The Intersection of Two Arrays
Given two unsorted arrays as input to a function, find what the intersection (i.e. common elements) of these two arrays is. For example, with the arrays {1,3,5,7,9} and {1,2,3,4,5} the result would be {1,3,5}.
For this solution, focus on the efficiency.
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