Still waiting for the offer.

I applied to Oath through the college career fair and received an email for the next-day interview.

There were two rounds of interviews:

• First round: The interviewer was very good to me. He asked two coding questions and some basic behavioral questions.
• Second round: This was a telephonic phone screen. It consisted of one coding question and some basic OOPS questions.

Serialization and deserialization of binary tree

Given an array and a window size, pass the window all over the array and print the maximum element in the window in O(n).

Maximum length of a subarray