Amazon WOW Interview Expertise for SDE 1 (2021)

Amazon introduced the ladies hiring occasion, Amazon WOW, in 2021. We needed to register on the amazon wow portal to entry it after which we obtain an invite to the examination.

Written Take a look at:

1. Screening check (1 Simple coding query and laptop science fundamentals)
2. Commonplace Amazon placement Take a look at (Debugging, coding, workstyles evaluation, aptitude)

Interview: For SDE 1, there have been 3 interview rounds. The examination outcomes have been launched in December 2021, and rounds of interviews have been deliberate for January by way of February 2022. End result bulletins have been made in March 2022.

Spherical 1: (Technical Interview): Period: 60 Minutes Platform: Amazon Chime

• This spherical began with the interviewer asking me to introduce myself. After a fast introduction, I used to be immediately requested the DSA query.
• Downside 1: remodel binary search tree to larger sum tree
• I used to be requested to write down a production-level code for a similar. I defined my method, carried out a dry run, and acknowledged time and area complexities.
• Downside 2:  find-maximum-possible-stolen-value-houses  I defined my method utilizing Dynamic programming after which the interviewer prolonged the issue by stating that the n homes are actually in a round avenue. I defined my method, and its time and area complexity accomplished the code and carried out a fast dry run. The interviewer was fairly happy with this and the spherical ended with just a few behavioral questions.

Spherical 2: (Technical Interview): Period: 90 Minutes Platform: Amazon Chime

• I used to be questioned about one of many tasks listed on my résumé to begin this spherical of the interview. After an in depth dialogue, the interviewer offered the DSA query.
• Downside 1: Given a matrix with every cell worth as ‘A’ or ‘G’ for military and gold respectively, such that now we have consecutive military cells adopted by gold cells. We’ve got to output the row quantity that we should always select to steal such that we will encounter most gold cells.
• I defined the brute drive method adopted by strategies to optimize the code. The interviewer gave me a touch which helped me give you essentially the most optimum resolution potential. After finishing the coding half for a similar, we mentioned the time complexity of this method.
• Downside 2: check-if-a-binary-tree-is-subtree-of-another-binary-tree He merely requested me to clarify the technique for this one and to point the time and area complexity for a similar as a result of we have been working out of time. 
• I requested the interviewer just a few questions on his work at Amazon to wrap up this spherical.

Spherical 3: (Technical Interview) Period: 60 Minutes Platform: Amazon Chime

• The supervisor started spherical three by asking me just a few behavioral questions concerning my tasks and internship. These questions are typically associated to Amazon’s Management ideas and you’re anticipated to focus on these qualities whereas answering them. After an in depth dialogue, he offered the DSA drawback.
• Downside 1: In a 2D matrix, given supply cell ( any matrix nook) and vacation spot cell ( any cell within the matrix), discover no cells to be traveled to succeed in the vacation spot cell such that we will solely observe the diagonal path in a spiral style ( backside left and backside proper diagonal paths or prime left and prime proper diagonal paths)
• This spherical had a single coding query with a simple issue degree, however I used to be requested to write down the code in such a manner that it may be generalized to alter the motion both from proper to left or left to proper with minimal alterations within the code.

Last Verdict: I bought an e-mail after virtually a month stating that I’ve been chosen as an SDE 1 at Amazon.

Suggestions:

• Amazon closely depends on its  12 management ideas and expects the candidates to mirror these abilities. Be sure you observe down at the least 2-3 management ideas that align together with your work in every of your tasks. When responding to the behavioral questions, emphasize these talents.
• Amazon provides utmost significance to the standard of code you write. A candidate is predicted to write down production-level code which is clear, and nicely indented with correct variable names.
• Be sure you are thorough with DSA and OOPs ideas.
• Suppose loudly all through the interview course of, even if you find yourself coding. At all times spotlight the time and area complexities of your approaches. 
• Take your time to grasp the DSA drawback and search clarification by asking questions on it.
• At all times exhibit curiosity within the job on the firm by asking the interviewer questions on the conclusion.