Amazon interview experience Real time questions & tips from candidates to crack your interview
SDE - Intern
Amazon
1 rounds | 2 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 2 months
Topics: Data Structures, Algoruthms, OOPS, DP, Pointers
Tip 1 : Learn to explain your logic well.
Tip 2 : Learn to dry run your code.
Tip 3 : Solve as many data structures questions as you can.
Application process
Where: Company Website
Eligibility: Circuital branches only || Female only
Tip 1 : They did not shortlist resume .
Tip 2 : They did send link to everyone satisfying eligibility criteria.
Interview rounds
01
Round
Medium
Video Call
Duration55 minutes
Interview date23 Jun 2020
Coding problem2
It was a coding interview that started with introducing myself. Two questions from data structures were asked.
1. Matrix Median
Moderate
15m average time
90% success
0/80
Asked in companies
You have been given a matrix of ‘N’ rows and ‘M’ columns filled up with integers where every row is sorted in non-decreasing order. Your task is to find the overall median of the matrix i.e if all elements of the matrix are written in a single line, then you need to return the median of that linear array.
The median of a finite list of numbers is the "middle" number when those numbers are listed in order from smallest to greatest. If there is an odd number of observations, the middle one is picked. For example, consider the list of numbers [1, 3, 3, 6, 7, 8, 9]. This list contains seven numbers. The median is the fourth of them, which is 6.
Problem approach
I applied binary search in every row.
2. Count triplets in a sorted doubly linked list whose sum is equal to a given value x
Easy
15m average time
85% success
0/40
Asked in companies
You have been given an integer ‘X’ and a non-decreasing sorted doubly linked list with distinct nodes.
Your task is to return the number of triplets in the list that sum up to the value ‘X’.
Problem approach
First I gave him brute force solution
Then the interviewer told me to optimize it.
Then I solved it using two pointer method.
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Skill covered: Programming
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