'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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2 rounds | 3 Coding problems
Interview preparation journey
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Journey
I started preparing for software developer roles in my second year. I was practicing coding from first year in Hackerrank and leetcode. This helped me to get selected in many coding interviews.
Application story
I applied through online registration form shared by Training and Placement cell. There were 2 rounds in total.
Why selected/rejected for the role?
I was selected for this role. It was a very easy placement. There were two very easy rounds of interview.
Preparation
Duration: 2 Months
Topics: Data Structures and Algorithms, Java, Object-Oriented Programming System, System Design, Operating System.
Tip
Tip

Prepare for company-wise interview questions according to the company in which you are applying. Try to write the code yourself and if got stuck in between then take help from the internet. I recommend you Codezen of Coding Ninjas for practicing Data Structures and Algorithms based questions.

Application process
Where: Campus
Eligibility: 7 CGPA
Resume Tip
Resume tip

Be sure 100% of what you write in your resume and prepare for that before the interview what is written on resume.

Interview rounds
01
Round
Easy
Online Coding Interview
Duration 90 minutes
Interview date11 Sep 2019
Coding problem2

This round was held during university hours and consisted of 2 coding questions.

1. Remove Consecutive Duplicates from String
Moderate
22m average time
0/80
Asked in companies
SAP LabsIntuitMeesho

Given a string S, remove consecutive duplicates from it.

Problem approach
  • I just simply use iterative traversal of string and check for current element and next element whether they are equal or not.
Try solving now
2. Loot House
Moderate
26m average time
0/80
Asked in companies
Dell TechnologiesShopeeQualcomm

There are n houses build in a line, each of which contains some value in it. A thief is going to steal the maximal value of these houses, but he can’t steal in two adjacent houses because the owner of the stolen houses will tell his two neighbours left and right side. What is the maximum stolen value?

Problem approach
  • I just used dynamic programming using the concept that if an element is selected from the array then the next element cannot be selected and if an element is not selected then the next element can be selected.This passed all test cases.
Try solving now
02
Round
Easy
Face to Face
Duration120 minutes
Interview date20 Sep 2019
Coding problem1

Make sure you do no cutting and are clear about the approach you'd be following. 
 

1. Running median
Hard
46m average time
50% success
0/120
Asked in companies
SprinklrMyntraHike

Running median of input stream.

Problem approach
  • I gave the interviewer, priority queue or heap-based solution. Two heaps were taken, one max and another min, after that we have to add the element to heaps such that the difference between the size of both heaps should be balanced. Finally, he was satisfied with my approach after asking a few questions about my solution.
Try solving now
Join the Discussion
1 reply
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7 months ago

As an beginner i can only solved 1st question with 100% accuracy.

2 upvotes
0 replies
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