Welcome to your interview.
The question is on your right: Explain Solution Time Complexity. 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 (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
Can you explain the time complexity of your solution, and briefly justify the space complexity as well? Walk through how the code structure leads to that result.