Poorly designed process with a focus to make you do a internal problem assignment for free. I spent half-day delivering a fully technical solution of 12 pages for FREE. Because it's so obvious, they even put a statement to the assignment, to make you think otherwise.
"This is a standard task. We will not use your answer to this prompt in our product. The purpose of this assignment is only to evaluate your job application."
DO NOT ever go through that process, it's a waste of time! It was a BIG mistake by my side. Never again.