I had two phone screens and around six on-site interviews.

I was interviewing for an engineering manager position. Both the phone interviews and on-site interviews were very technical.

There is always a problem-solving question asked in an interview. It might be a puzzle, a design question, or an algorithmic question.

I wrote pseudocode; there was not much emphasis on writing code in a specific language.

I was asked an optimization question in the last 5 minutes of the interview.

I tried to get all the details in the remaining time and then attempted to solve it.

I then asked if I could email the answer and took the interviewer's email ID.