For coding questions, practice the top 100 Meta-tagged LeetCode problems.

During coding rounds, follow these steps:

• Read the question aloud.
• Ask clarifying questions to ensure you fully understand the problem.
• Discuss edge cases.
• Explain your approach and logic to the interviewer.
• State the time and space complexity.
• Confirm with the interviewer before starting your implementation.
• Write your solution while thinking out loud.
• Dry-run your code against the provided examples and add more test cases if time allows.

For product architecture design interviews, be prepared for both system design and product architecture questions. The interviewer mistakenly gave a system design question instead of a product architecture one. I pointed it out, but she refused to acknowledge the mistake. I was not ready for it and did not do well. Since interviewers may not follow the correct format, expect and prepare for both types of questions.

Alien dictionary

Easy

Basic Calculator

Kth largest element in an array

Shortest path in a matrix (print path)

System design.

Design an ad click aggregator