The interview process included an online HackerRank coding test of medium difficulty.

After clearing the first interview, there were two coding rounds entirely focused on data structures and algorithms. I was asked about printing a successor node in a binary tree, string-based problems, and dynamic programming.

After clearing these rounds, the last round was with the hiring manager. Questions asked revolved around work projects in my current company and behavioral questions.

They kept an additional hiring manager round that completely focused on knowledge of the Java language and frameworks.

Print the successor node of a binary tree.