Interview Process at Amazon:

I received a call from HR informing me about the interview process. The complete process consisted of the following rounds:

Online Test (Round 1):

This was the initial screening round. It included 2 DSA coding questions:

• One was based on Dynamic Programming (DP)
• The other was based on Graphs

Technical Interviews (Rounds 2 & 3):

Two rounds focused on core data structures, algorithms, and problem-solving skills. Questions covered optimal approaches and real-time debugging.

They asked me two DSA questions during the interview:

• LeetCode 767 – Reorganize String: I started by explaining the brute-force approach to the problem. After that, they asked me to come up with an optimal solution. I was able to derive the correct optimal approach during the discussion, but I couldn’t implement the most efficient version within the interview timeframe. At first, the problem seemed difficult under pressure, but in hindsight, it turned out to be quite manageable.

• LeetCode 22: Generate Parentheses I understood the problem well and was able to explain the optimized backtracking solution. However, due to time constraints, they didn’t ask me to write the code.