Interviewer gave me extra time to solve problem I was stuck at, good sign?

Hi everyone. Just had my first interview at a big company. Things were going okay, they asked me a couple of questions I quickly answered and then they gave me a super easy leetcode-like problem where I just got stuck.

I mentioned I was a little stuck and asked to move to the next question to later get back to it if possible, to which they agreed.

After solving that question they told me the interview time was up but that they would like to give me 5 minutes to go back to the sticky problem and see if I could solve it.

I got it with the ideal solution before the 5 mins.

Since I was preparing for medium/hard problems on leetcode this one caught me off guard, being nervous my brain started trying to apply overcomplicated stuff

I don’t know if I’ll pass the filter but is it common for interviewers to give some extra time if I couldn’t crack the problem at the first try?

Thanks.