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Optimize to O(n log n)

Apex SystemsHardCoding00:00
Apex Systems
Your interviewer · Machine Learning Engineer
In session
Interviewer

Welcome to your interview for the Machine Learning Engineer role at Apex Systems.

The question is on your right: Optimize to O(n log n). Take a moment with it first.

Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen. You have three graded attempts to score 7/10 or better.

Only Submit answer is graded - discussion is free practice.

Problem

How would you optimize a function to run in O(n log n) time complexity?