The interview process consisted of four rounds.

• The first round focused on fundamental coding questions.
• The second round delved into data structures and algorithms, testing problem-solving abilities.
• The third round was a managerial review, assessing soft skills and cultural fit.
• The final round centered around system design, evaluating the ability to design scalable and efficient systems.

Given a JSON object, pretty print it.

Given a binary tree, print its top view.