Maximum Product

June 11, 2019

I think today’s exercise comes from one of those hacker testing sites, but I’m not sure:

Given three arrays of integers, both positive and negative, find the maximum product that can be formed by taking one element from each array. For instance, if A = [10,-10,15,-2], B = [10,-12,13,-2], and C = [-11,-10,9,-12], the maximum product is 2160 using 15, -12 and -12.

Your task is to write a program that finds the maximum product of three integers, taking one each from three arrays. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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