Amazon interview experience Real time questions & tips from candidates to crack your interview

# SDE - 1

Amazon
3 rounds | 5 Coding problems

## Interview preparation journey

Preparation
Duration: 3 months
Topics: Data Structures and Algorithms, Operating Systems, Computer Networks, Java
Tip

Tip 1 : Be enough confident, don't be nervous. Maintain atleast 2 projects in your resume.
Tip 2 : You should be able to answer each and every thing present in your resume. Don't lie in your resume.
Tip 3 : Prepare Data Structures and Algorithms well. They mostly check our Problem Solving ability to find the solutions for the real world problems

Application process
Where: Campus
Eligibility: Above 65 percent
Resume tip

Tip 1 : Mention your skills in which you are perfect
Tip 2 : Mention atleast two projects

## Interview rounds

01
Round
Easy
Online Coding Interview
Duration60 minutes
Interview date28 Jul 2020
Coding problem2

There was 2 coding questions
Based on ds and algorithms

Easy
15m average time
85% success
0/40

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### 2. Validate BST

Moderate
25m average time
0/80

#### You have been given a binary tree of integers with N number of nodes. Your task is to check if that input tree is a BST (Binary Search Tree) or not.

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02
Round
Easy
Online Coding Interview
Duration60 minutes
Interview date28 May 2020
Coding problem2

There was 2 coding questions based on ds and algorithms

Easy
0/40

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### 2. Flatten a linked List

Easy
15m average time
85% success
0/40

#### (1) ‘ne...

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03
Round
Medium
Video Call
Duration45 Minutes
Interview date18 Jun 2020
Coding problem1

My interview started at 9:30 and it took around 45 minutes to complete my interview.This was held on Amazon Chime and the interview lasted for 1 hour. Firstly the interviewer asked to introduce about myself, later asked regarding the projects I have mentioned in my resume. Then started displaying the coding question. The first question is number of islands in a matrix.

### 1. Find Number of Islands

Moderate
34m average time
60% success
0/80

#### You are given a 2-dimensional array/list having N rows and M columns, which is filled with ones(1) and zeroes(0). 1 signifies land, and 0 signifies water.

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Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

What is the result of 4 % 2?

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