My Phone screen stretched from 45 minutes to 1:10 minutes.

First 10-15 minutes Intro, and the interviewer deep dived in the architecture I was working on.
I was asked 2 question

1. Alien Dictionary : https://leetcode.com/problems/alien-dictionary/ - Took me 20~25 mins.
   • With some hints got a working solution.
   • He was happy to print the results, but didn't run the code end-to-end.
2. https://leetcode.com/problems/top-k-frequent-elements/
   • I was told I have only 10 mins left and do it quickly.
   • I covered all the edge cases and got a working solution for the problem. - Interviewer was happy with it.
   • Did it in 15 minutes

He gave me more time to ask questions and it stretched to 1:10 mins, is it normal, a good sign?