[indecisive_user]

As a counter point, I was in an interview loop recently with a candidate that ended up solving the question eventually, but didn't hit a lot of the bullet points in the parent comment (asking clarifying questions, edge cases, abstraction).

After discussing feedback from other interviewers, it was apparent that the same considerations were lacking in multiple interviews, and so the candidate got a no hire decision. For any single interview it probably would have been okay to omit these things, but when there's a negative pattern across multiple interviews, that's when it really hurts your chances.