YOE: 6+
I recently had my first round interview with a principal engineer (LinkedIn: https://www.linkedin.com/in/crimsonorb/). The interview consisted of two coding questions:
- https://leetcode.com/problems/remove-linked-list-elements/ -> I solved it in 10 mins in O(N) time complexity and O(1) space optimisation.
- https://leetcode.com/problems/remove-all-occurrences-of-a-substring/ -> Solved this question with 2 approaches one with using the STL and with the iterative way . Overall time complexity is O(N). I was able to run all the test cases he provided me and i also discussed corner test cases for both questions.
Then we discuss about my current project and it was a positive discussion.
Notably, I was not feeling well on the interview day, but I still joined the call and completed all the DSA problems effectively. For reference, here is my leetcode profile 
The feedback I received from HR was that they are not inclined to move forward with me because I was supposedly unable to solve the second question and struggled with basic problem-solving skills. Seriously? The interviewer couldn't even understand simple C++ code, yet he had the audacity to judge me.
Sandeep, if you are reading this, please refrain from conducting interviews in the future. You are a disgrace to the software development community. Candidates put in a tremendous amount of effort to prepare for interviews, and because of people like you, their confidence is shattered.
