'Coding has over 700 languages', '67% of programming jobs aren’t in the technology industry', 'Coding is behind almost everything that is powered by electricity'
Amazon interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Amazon
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4 rounds | 6 Coding problems
Interview preparation journey
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Preparation
Duration: 6 Months
Topics: Operating System, System Design, Data structure, Trees, Graph, Dynamic Programming
Tip
Tip

Tip 1 : Prepare DSA Questions from coding ninja or interview bit 
Tip 2 : Have knowledge about SQL and datbases
Tip 3 : Practice Atleast 200 coding questions from gfg

Application process
Where: Referral
Eligibility: Above 7
Resume Tip
Resume tip

Tip 1 : Have some good projects Web Dev projects are preferred 
Tip 2 : Resume should be of 1 page

Interview rounds
01
Round
Medium
Online Coding Interview
Duration40 minutes
Interview date13 Aug 2020
Coding problem2

Timing (Between 6pm -7pm)
Environment was friendly

1. Connect N Ropes With Minimum Cost
Easy
20m average time
80% success
0/40
Asked in companies
MicrosoftPaypalAmazon

You have been given 'N' ropes of different lengths, we need to connect these ropes into one rope. The cost to connect two ropes is equal to sum of their lengths. We need to connec...

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2. Optimize Memory Usage
Moderate
0/80
Asked in companies
ArcesiumAmazonSamsung
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02
Round
Medium
Video Call
Duration60 minutes
Interview date16 Oct 2020
Coding problem1

First 40 minutes, we discussed my current company work, university projects, some behavioral questions like conflict with manager, conflict with colleagues etc

1. Technical Questions

Producer consumer problem
What is virtual memory
What is garbage collector, thread vs process.

03
Round
Medium
Video Call
Duration60 minutes
Interview date23 Oct 2020
Coding problem1

Timing (6pm -7 pm)
Environment was user friendly
In first 10-15 minutes He asked my current company’s work and some behavioral questions. Then he jumped to coding problems

1. Spiral Order Traversal of a Binary Tree
Easy
20m average time
75% success
0/40
Asked in companies
SamsungPaytm (One97 Communications Limited)Tata Consultancy Services (TCS)

You have been given a binary tree of 'N' nodes. Print the Spiral Order traversal of this binary tree.

For example
For the given binary tree [1, 2,...
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04
Round
Medium
Video Call
Duration60 minutes
Interview date31 Oct 2020
Coding problem2

Timing (6pm - 7pm)
Environment was user friendly
Interviewer asked me about my day, I told him that I gave second round sitting in a bar, he started laughing and appreciated my spirit. After a short introduction he jumped straight to the coding questions

1. Minimum number of swaps required to sort an array
Easy
10m average time
90% success
0/40
Asked in companies
HikeSamsungAccenture

You have been given an array 'ARR' of 'N' distinct elements.

Your task is to find the minimum no. of swaps required to sort the array.

For example:
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2. Snake and Ladder
Moderate
30m average time
60% success
0/80
Asked in companies
Red HatJP MorganCisco

You have been given a Snake and Ladder Board with 'N' rows and 'N' columns with the numbers written from 1 to (N*N) starting from the bottom left of the board, and alternating direction e...

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