Company Name: Amazon
Job Role: SDE Intern
Years of Experience Required: None
Drive: Off-Campus (Amazon WoW)
Preparation for Amazon
Topics: DSA, CN, OS, DBMS, OOPS, SE
Source of Preparation: Smart Interviews, GFG, InterviewBit, Striver’s SDE sheet
- Check Striver’s SDE Sheet for Interview Preparation.
- Check the ultimate resume building guide for coding interviews.
- Blind 75 Leetcode
Round 1: Online Coding Test
Problem List: 1 coding question, 40 MCQs covering CS subjects
Problem Statement: Given a string, find the length of the longest substring which is a palindrome.
Input Format: “baabd” Result: 4
Round 2: Online Coding Test
Problem List: 2 coding questions, 7 debugging questions, aptitude MCQs, workstyle assessment.
Problem Statement: 1st question was a medium-level DFS based question.
Question 2: Given a string, count the number of substrings with k distinct characters.
Input Format: “abcbaa”, k = 3 Result: 8
Round 3: TR Video Call.
Topics asked: DSA
Problems: The interviewer asked for my introduction and gave a coding question.
Question: Given an array of size n, find a subarray such that on sorting this subarray, the whole array is sorted .
Input Format: [10, 12, 27, 29, 45, 19, 37, 11, 45, 67] Result: [12, 27, 29, 45, 19, 37, 11]
Then he asked me about BSTs, tree traversals.
Round 4: TR Video Call
Topics asked: DSA, projects
Problems: The interviewer started with her introduction then asked mine. Then she asked me about one of my projects, challenges faced during the project, followed by 2coding questions.
QUESTION 1: Search for an element in a row-wise and column-wise sorted 2D array.
QUESTION 2: A medium-level DFS based question.
Message to Aspiring Students:
Be well prepared with your basics as they are important to clear the screening tests. During interviews, think out loud as the interviewer is always there to help you out. Be consistent and hope for the best!