'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 - Intern
Amazon
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3 rounds | 6 Coding problems
Interview preparation journey
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Preparation
Duration: 3 Months
Topics: Dynamic Programming, Greedy Techniques, Data Structures, OOPs, DBMS, Graph Theory
Tip
Tip

Tip 1 : Prepare OS,DBMS,OOPs too
Tip 2 : Mention atleast one project or past work experience in your resume
Tip 3 : Try maintaining 8+ CGPA as sometimes shortlist is done based on CGPA
Tip 4 : Try past interview questions from Leetcode,Interviewbit.

Application process
Where: Campus
Eligibility: Above 6 CGPA
Resume Tip
Resume tip

Tip 1 : Try to Keep Resume 1 Pager 
Tip 2 : Have atleast one project or past work experience mentioned
Tip 3 : Don't put false things on Resume as questions are asked in detail from Resume

Interview rounds
01
Round
Medium
Online Coding Test
Duration45 minutes
Interview date10 Sep 2020
Coding problem2

The first Round was held on Hackerrank and the questions were of medium difficulty based on Data Structures and Algorithms.
The time of test was 1:00 PM and it was of 45 minutes with 2 coding questions to be solved.

1. Merge overlapping intervals
Easy
10m average time
90% success
0/40
Asked in companies
JP MorganDirectiOptum

Given 'N' number of intervals, where each interval contains two integers denoting the boundaries of the interval. The task is to merge all the overlapping i...

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2. Josephus
Moderate
30m average time
70% success
0/80
Asked in companies
Goldman SachsWalmartAmazon

‘N’ people are standing in a circle numbered from ‘1’ to ‘N’ in clockwise order. First, the person numbe...

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02
Round
Medium
Coding Test - Pen and paper
Duration75 minutes
Interview date14 Sep 2020
Coding problem2

A google Doc was shared with us and we were supposed to write code there. 
Use of IDEs was not allowed so we had to write correct code on Google Docs which was later checked by them through online IDEs.
The Interviewer were friendly and observative and helped us through code if we made some silly error.

1. Largest rectangle in a histogram
Hard
25m average time
75% success
0/120
Asked in companies
InfosysZomatoGoogle

You have been given an array/list 'HEIGHTS' of length ‘N. 'HEIGHTS' represents the histogram and each element of 'HEIGHTS' represents the height of the histogram ...

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2. Boundary Traversal
Hard
20m average time
85% success
0/120
Asked in companies
ShareChatPaytm (One97 Communications Limited)HCL Technologies

You are given a binary tree having 'n' nodes.


The boundary nodes of a binary tree include the nodes from the left and right boundaries and the leaf nod...

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03
Round
Medium
Face to Face
Duration60 minutes
Interview date16 Sep 2020
Coding problem2

The face to face round was held on Google Meet where initially Interviewer asked a DS/Algo problem and then Later Manager Joined and asked about our resume projects in detail.
The time was 10:00 AM

1. Maximum sum rectangle
Hard
25m average time
70% success
0/120
Asked in companies
Hexaware TechnologiesOptumSamsung

You are given an M X N matrix of integers ARR. Your task is to find the maximum sum rectangle.

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2. Rotated Array
Moderate
10m average time
90% success
0/80
Asked in companies
Paytm (One97 Communications Limited)DelhiveryFacebook

You are given an array 'arr' of size 'n' having unique elements that has been sorted in ascending order and rotated between 1 and 'n' times which is unknown.

...
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