Amazon interview experience Real time questions & tips from candidates to crack your interview
SDE - Intern
Amazon
3 rounds | 3 Coding
problems
Rejected
Interview preparation journey
Preparation
Duration: 3 Months
Topics: Data Structures, Pointers, OOPS, System Design
Tip 1 : Practice Atleast 250 Questions
Tip 2 : Do atleast 2 projects
Application process
Where: Campus
Eligibility: Above 7 CGPA
Tip 1 : Have some projects on resume.
Tip 2 : Do not put false things on resume.
Interview rounds
01
Round
Medium
Online Coding Interview
Duration50 Minutes
Interview date15 Jan 2021
Coding problem1
1. Maximal AND Subsequences
Moderate
15m average time
85% success
0/80
Asked in company
You are given an array consisting of N integers. You need to find the number of k-element subsequences of the given array where the bitwise AND of the subsequence's elements is maximal. Also, find the maximal AND value.
Example:
Let the array be [1, 3, 6, 7] and K=3. The possible k-element subsequences of the given array are: {1, 3, 6}, {1, 3, 7}, {1, 6, 7}, {3, 6, 7}. Applying AND operation on all possible subsequences we get values: 0, 1, 0, 2 respectively. The maximal AND value of these subsequences is 2, and only 1 subsequence {3, 6, 7} has this value.
03
Round
Easy
Online Coding Interview
Duration50 Minutes
Interview date27 Jan 2021
Coding problem1
1. OS Question
What are semaphores?
04
Round
Easy
Online Coding Interview
Duration50 Minutes
Interview date12 Jan 2021
Coding problem1
1. OS Question
What is virtual memory?
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