Amazon | SDE2 | Bengaluru | June 2022 [Rejected]

Status: ~5 years experience
Position: Senior Software Engineer at a service based organisation
Location: Pune
Date: June 2022

Online assessment(2 hour):

1. https://leetcode.com/discuss/interview-question/1982251/amazon-oa-usa-sde2-minimum-swaps-to-make-a-binary-string-palindrome
2. https://leetcode.com/discuss/interview-question/1981786/amazon-online-assessment-questions-sde-2-04252022
3. https://leetcode.com/discuss/interview-question/2108095/amazon-sde2-may-2022-online-assessment

Technical 1: (1 hour)

1. https://leetcode.com/problems/number-of-islands/
   Given an m x n 2D binary grid which represents a map of '1's (land) and '0's (water), return the number of islands. An island is surrounded by water and is formed by connecting adjacent lands horizontally or vertically. You may assume all four grid edges are surrounded by water.
   Solve in O(1) space.
2. Leadership Principles

Technical 2: (1 hour)

1. https://leetcode.com/problems/majority-element/
2. https://leetcode.com/problems/longest-happy-string/
3. Leadership Principles

LLD + System Design: (1 hour)

1. Design an online doctor's appointment booking app.
2. Leadership Principles

System Design: (1 hour)

1. Design an email notification system for Alexa.
   a. Signup and Registration and Login process on Alexa.
   b. Email notification delivery. Just get a new email and show that to the user.
2. Leadership Principles

Verdict: Rejected