Company Name: Amazon

Job Role: SDE

Years of Experience Required: Fresher

Drive: On-Campus

Preparation for Amazon

Preparation

Topics: Data Structures and Algorithms

Duration: 6 months

Source of Preparation: Leetcode, GFG, Striver’s SDE sheet.

[BONUS]:

• Check Striver’s SDE Sheet for Interview Preparation.
• Check the ultimate resume-building guide for coding interviews.
• Blind 75 Leetcode

Amazon Interview Rounds

Interview Rounds

Round 1: Online Coding Test

• Given an array find the minimum difference between any pair.
• Find the longest palindromic substring in a given string.

Round 2: Technical Interview

• Find middle of Linked List: Given the head of a singly linked list, return the middle node of the linked list. If there are two middle nodes, return the second middle node.
• Given an array of distinct integers, find if there are two pairs (a, b) and (c, d) such that a+b = c+d and a, b, c, and d are distinct elements. If there are multiple answers, then print any of them.

Round 3: Technical Interview

• Boundary Traversal of a binary tree.
• Construct Binary Tree from Inorder and Preorder traversals. Given the Inorder and Preorder Traversal of a binary tree, construct the unique binary tree represented by them.

Round 4: Technical + Managerial

• What is JOIN? Explain types of JOINs
• Diff between TRUNCATE and DELETE command 
• Detect a cycle in an Undirected graph using BFS

Verdict: Selected