Amazon Interview Experience: SDE: Set 21

Company Name: Amazon

Job Role: SDE

Years of Experience Required: Fresher

Drive: Off-Campus

Preparation for Amazon

Topics: Data Structures and Algorithms

Duration: 6 months

Source of Preparation: GFG, Striver’s SDE sheet, Aditiya Verma Dp series.


Amazon Interview Rounds

Round 1: Online assessment

Round 2: Technical Round

  • Sort arrays of 0’s, 1’s, and 2’s: Given an array consisting of only 0s, 1s and 2s. Write a program to in-place sort the array without using inbuilt sort functions. ( Expected: Single pass-O(N) and constant space)
  • Minimum number of platforms required for a railway: We are given two arrays that represent the arrival and departure times of trains that stop at the platform. We need to find the minimum number of platforms needed at the railway station so that no train has to wait.

Round 3: Technical Round

Round 4: Technical + Managerial Round

  • Why do you want to join Amazon?
  • Why should we hire you, strength and weakness?
  • Find maximum size BST from a given binary tree.
  • Questions from 1NF,2NF, 3NF, and normalization

Verdict: Selected