Skip to content
Related Articles

Related Articles

Improve Article
Save Article
Like Article

Amazon Interview Experience for Internship 2021 (On-Campus)

  • Difficulty Level : Medium
  • Last Updated : 03 Nov, 2020

Amazon visited our campus (NIT Jamshedpur) in September 2020. Around 120 candidates were shortlisted for round-1.

Round 1: This round was an online coding round held on AMCAT. It consisted of 4 sections.

Hey geek! It's time to become a success story instead of reading them. Check out our most renowned DSA Self Paced Course, now at a student-friendly price and become industry ready. And if you are looking for a more complete interview preparation resource, check out Complete Interview Preparation Course that will prepare you for the SDE role of your dreams!

Feeling prepared enough for your interview? Test your skills with our Test Series that will help you prepare for top companies like Amazon, Microsoft, TCS, Wipro, Google and many more!

  1. Code Debug (20 mins): It had 7 questions which were quite easy.
  2. Coding (70 mins): It consisted of 2 coding questions.
    • Question 1: Merge two sorted linked lists.



    • Question 2: Given a list of N packing crates in the facility, any of which is a candidate to be moved to the new facility. The truck is initially at the origin of capacity M. Return the list of M locations closest to the truck.

  3. Work Styles Assessment (10-15 mins): It was based on amazon leadership principles.
  4. Logical ability (35 mins):  MCQs based on aptitude

30 candidates were selected for the next round.

Round 2(One-to-One Interview) We were provided an amazon chime link for the meeting. First of all, the interviewer introduced himself and asked me to introduce myself. Then he asked me 2 coding questions.

  1. Given 2 strings a and b. a represent the first lane in which vehicles move from left to right. The b represents the second lane in which vehicles move from right to left. Vehicles can be B (bike), C (car), T (truck). collision will occur only between two trucks. Find the probability of collision.

    Example:

    a = TCCBCTTB
    b = BTCCBBTT
    total number of collisions=7
    Probability of collision = 7/36

    First I gave the simple solution (time complexity: O(N), space complexity: O(N) ), he told me to write the code and then asked me the optimised approach. So I gave a constant space and linear time complexity algorithm and improved the earlier code.

  2. Given a binary tree having unique values and an array arr of integers. Return a list of root nodes of every component of the tree after deleting the nodes which are present in arr. I told the O(N) time complexity approach then he asked me to code it. We discussed the edge cases, and I was able to write the full code. He seemed satisfied at this time and asked me to give the brief intro of the project I mentioned in my resume within 30 seconds. 

Then we had a 5-10 minute discussion on the questions I asked him. The interviewer was very friendly.

I was expecting to be shortlisted for round-3, but 10 candidates(including me) were offered an internship after the round-2 itself.

My Personal Notes arrow_drop_up
Recommended Articles
Page :

Start Your Coding Journey Now!