Unthinkable Solutions Interview Experience | On-Campus 2022

Eligibility Criteria: No pending backlog. The opportunity was only for CS, IT & ECE students in our college.

Hiring Process:

Round 1: Coding Round 1

This round consists of three coding questions 2 easy and 1 medium level to be solved within 1 Hr. The test was conducted on HackerEarth. 30 students got shortlisted directly for personal interviews. Some got rejected and some were selected for the second coding round. I got a test link for the second coding round after 2 days.

1. https://leetcode.com/problems/jump-game/
2. Find the number of substrings that is consecutive alphabetically in a string
3. The statement of question 3 wasn’t clear.

Round 2: Coding Round 2

This round consists of three coding questions 2 easy and 1 medium level again to be solved within 1 Hr on the HackerEarth platform.44 more students were selected for the personal interviews after round 2.

1. https://leetcode.com/problems/minimum-absolute-difference/
2. https://www.geeksforgeeks.org/count-all-prime-numbers-in-a-given-range-whose-sum-of-digits-is-also-prime/
3. https://www.geeksforgeeks.org/minimum-number-of-bracket-reversals-needed-to-make-an-expression-balanced/

I was able to do all the questions in this round hence directly qualified for the interview round. 

Round 3: Technical Interview 1

Time: Duration 40 mins

1. Tell me something about yourself.
2. Favorite computer subjects
3. Discussion on Projects
4. Command to check the IP address
5. Paging
6. Multi-level Paging
7. Indexing
8. Different sorting algorithms
9. Why unthinkable
10. Future Plans (like he asked me whether I have any plans regarding further studies)

My Techincal Interview one was awesome I literally answered all the questions interview was quite impressed with me and he directly told me that I am going in the next round.

Round 4: Technical Interview 2

Time: Duration 1.5 hours

1. Tell me something about yourself.
2. Discussion on Projects (Some questions on Machine Learning  / Deep Learning )
3. ACID properties
4. Write down the phases of the software development life cycle
5. Coding questions (he asked me to write the code for same and asked me time complexities of my code)
   • Pattern-based question
   • Sorting array using Stacks
6. Basic aptitude questions and maths puzzles,
   • A container contains 100 L of milk. From this container, 10 L of milk was taken out and replaced by water. This process was further repeated three times. How much milk does the container have now?
   • Car Wheel Puzzle https://www.geeksforgeeks.org/puzzle-29-car-wheel-puzzle/

 On the same day, I got a call from hr also.

Round 4: Hr round

1. Tell me something about yourself.
2. Asked my projects
3. Asked about my internship and certifications
4. Do you have any other offers?
5. How were my technical interviews?
6. What technology do you want to work upon?
7. Discussed location, Salary structure, bond, and various companies policies

Then my HR round finished

Verdict: Selected!!!