Amazon Interview Experience by Nikita Gautam | On Campus - Dec 2022

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Amazon interview experience Real time questions & tips from candidates to crack your interview

SDE - Intern

Amazon

2 rounds | 3 Coding problems

Nikita Gautam

Fresher | Dec 2022

Selected

Interview preparation journey

Journey

I started preparing for my placement from the starting of the B.Tech. Getting into one of MNCs in India was my dream, and I researched about it a lot like What are the most essential topics fro FAANG Interview?, How should you approach your graduation if you want to make it count?, etc. I practised DSA continuously for three years, and I thought I had a great base for them

Application story

I mailed the HR that I wanted to be the part of the the selection process and attached my resume. After two days, I got mailed back that your resume is selected and you will be having your interview rounds from now.

Why selected/rejected for the role?

I think I was on point with my coding solutions to the questions asked in the interviews. I provided the optimal solutions and I was giving correct explanations to some theory questions asked.

Preparation

Duration: 3 months

Topics: Dynamic Programming, OOPS, Computer Network, Operating System, Game Theory

Tip

Tip 1 : Prepare all Topics from Coding Ninjas of Course Competitive Programming. Also I practiced atleast one question everyday from sites like Leetcode,Interviewbit and also took part in Codeforces Contest.
Tip 2 : Do Competitive Programming regularly.

Application process

Where: Campus

Eligibility: 6.5

Resume tip

Tip 1 : Keep your resume up to date and mention 2-3 good level projects which will give a good impression to the interviewer .
Tip 2 : Don't put false things on the resume.

Interview rounds

Round

Medium

Video Call

Duration70 mins

Interview date22 Dec 2022

Problems2

This round was conducted on Google Meet with 2 interviewers present.
The time was around 2 PM to 3 PM.
The interviewers were friendly and helped if I got stuck.

1. Trapping Rain Water

You have been given a long type array/list 'arr’ of size 'n’.

It represents an elevation map wherein 'arr[i]’ denotes the elevation ...

Problem approach

DP problem

Try solving now

2. LRU Cache Implementation

Design and implement a data structure for Least Recently Used (LRU) cache to support the following operations:

Problem approach

We use two data structures to implement an LRU Cache.

Queue is implemented using a doubly-linked list. The maximum size of the queue will be equal to the total number of frames available (cache size). The most recently used pages will be near the front end and the least recently used pages will be near the rear end.
A Hash with the page number as key and the address of the corre...

Try solving now

Round

Easy

HR Round

Duration35 mins

Interview date22 Dec 2022

Problems1

The round was held on Google meet face to face with only HR present.
HR explained me about the team, etc, made me feel comfortable.
HR was friendly and asked almost standard questions.

1. Basic HR Questions

Who is your role model?

What is your expectation from this job?

Problem approach

Tip 1 : Maintain a positive attitude in all Interviews be it tech or HR.
Tip 2 : Develop team spirit and have some team work experience ( like ICPC times)
Tip 3 : Don't take HR round for granted, Prepare for this round beforehand.

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