I was referred by an employee.

The hiring process comprised of four rounds of technical interviews, with the final round being the HM (Hiring Manager) round.

The first round was a DSA (Data Structures and Algorithms) round.

The second round included questions from Java, REST principles, LLD (Low-Level Design), and current project architecture.

The third round covered BST (Binary Search Tree), REST principles, and Java multi-threading.

In the HM round, there were behavioral questions, followed by an array question: Given an array of integers, print all subsets of the array.

Get the maximum difference of all the absolute differences of left height and right height for each node in a binary tree.

Given a number k, print all the valid parentheses strings of length 2*k.

Find the intersection point of two linked lists.

Find the Kth smallest element of a BST (Looking for an iterative approach).

LLD: Implement a thread pool in Java.