HashedIn by Deloitte Interview Experience for SDE Intern+FTE | On-Campus 2024
Round 1: Online Assessment (90 mins)
Questions:
- Candies Allocation Problem (Easy one using greedy Approach).
- A Binary String Problem to find the maximum number of ones after flipping all the digits within a continuous range (Medium to Tough Difficulty Level).
- A variant of the Problem Related to Next Greater element in an array (Medium Difficulty).
Candidate's Approach
Consistent practice, especially from platforms like GFG and Leetcode, helped in solving all three questions.
Interviewer's Feedback
No feedback provided.
Round 2: Technical Interview 1 (45-50 min)
Questions:
- Missing and Repeating element in an Array.
- Find Pairs whose sum equal to a target sum.
- Find Longest Palindromic Substring in an Array.
- Merge K sorted Lists.
DBMS-related questions:
- Difference between Unique and Primary key.
- Difference Between Where and Having Clause.
- What Are SQL Commands.
- SQL query related questions which involved some basic DDL queries.
- What are React Hooks (Since I mentioned React in my resume).
- How does JWT Authentication Work.
Candidate's Approach
Started with brute force approaches for the DSA questions and optimized them to better and optimal solutions. Encountered some difficulty while optimizing the fourth problem.
Interviewer's Feedback
The interviewer seemed satisfied with the responses.
Round 3: Technical Interview 2 (1 hr 10min)
Questions:
- Explain one of my projects (an e-commerce application built using Next.js).
- Discuss SQL vs. NoSQL databases and write a query using both.
- DSA problem: Given a 2D matrix containing a source node, a target node, and some blocked nodes, find the longest path from the source to the target.
Candidate's Approach
Solved the graph problem using DFS (Depth First Search). Successfully designed a database for a restaurant table booking application, including schema design, creating an ERD (Entity-Relationship Diagram), and writing queries for all requested features.
Interviewer's Feedback
No feedback provided.
Round 4: HR/Managerial Interview (20 min)
Questions:
- From which place do I belong?
- A brief introduction about my family.
- What can I bring to HashedIn?
- Why should they hire me?
- What do I know about HashedIn?
- Situation-based questions (2-3).
Candidate's Approach
Answered all questions confidently.
Interviewer's Feedback
No feedback provided.