Qualtrics Entry Level Software Developer interview questions

I was contacted to schedule a coding challenge while in a call with one of their engineers. It took 90 minutes and was focused on a Leet Code style question

The interviewer was cordial. We made small talk for the first five or so minutes and then he jumped into a couple of token interview questions. He asked me about my internship experience and a time in which I overcame a challenge in that position. Easy enough. We then jumped to the technical portion of the interview. It was done on an online text editor in which we could both edit the text (code). He asked two coding questions. The first was pretty simple and the second one was of medium difficulty. I am not an incredibly talkative and warm person, so I struggled to include the interviewer in my thought processes. I flubbed the second question and didn't really explain to him what was giving me trouble. Don't do that. My advice is to treat him like a co-worker and bounce ideas off one another. I did not really come across as a good team member, so my candidacy ended there. Overall, he was a nice guy and the interview process was fair. We just didn't click.