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Optimize an Algorithm and Refactor

OrdergrooveMediumCoding00:00
Ordergroove
Your interviewer · Software Engineer
In session
Interviewer

Welcome to your interview for the Software Engineer role at Ordergroove.

The question is on your right: Optimize an Algorithm and Refactor. 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

Write an algorithm to solve a core data manipulation problem, analyze its time and space complexity, and then refactor it for maximum performance.