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CommonFloor Software Engineer Interview Questions and Answers

Updated 2 Sep 2015

CommonFloor Software Engineer Interview Experiences

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Software Engineer Interview Questions & Answers

user image ankur aggarwal

posted on 28 Feb 2015

Interview Questionnaire 

10 Questions

  • Q1. General question on database
  • Q2. Few algorithm based questions
  • Q3. Detailed discussion about my projects
  • Q4. Discussion on my projects
  • Q5. Three or four puzzles
  • Q6. Few dynamic programming problems
  • Q7. One sorting based questions
  • Q8. What is the most important thing you are taking with you from IIT Kgp?
  • Ans. 

    The importance of problem-solving skills and teamwork.

    • Developed problem-solving skills through challenging coursework and projects.

    • Collaborated with diverse teams to complete group projects.

    • Participated in hackathons and coding competitions to enhance skills.

    • Learned to manage time effectively and prioritize tasks.

    • Developed a strong work ethic and dedication to excellence.

  • Answered by AI
  • Q9. What do you know about commonfloor?
  • Ans. 

    CommonFloor is a real estate platform that helps people find and rent/buy properties.

    • CommonFloor was founded in 2007 and is based in Bangalore, India.

    • It offers a range of services including property listings, property management, and home loans.

    • The platform has over 5 million registered users and lists properties in over 200 cities in India.

    • In 2016, CommonFloor was acquired by Quikr, another Indian online classifieds p

  • Answered by AI
  • Q10. Detailed discussion on all my projects

Interview Preparation Tips

Round: Test
Experience: Multiple choice questions were not that difficult, mostly on database and operating system. Coding question was good and i think that made the whole difference , it was on graph theory (distance between two nodes).
Tips: In general prepare all the concepts of Dynamic programming for the tests during placements not only for commonfloor they are the most generally asked questions.
Duration: 60 minutes
Total Questions: 6

Round: Technical Interview
Experience: I stuck in one of the database question , but my knowledge on my project and algorithm was good , finally they remarked me with good technical knowledge.
Tips: Prepare your projects ,i think that is most vital part in your selection . I had friends who had good technical knowledge but didn't prepare there projects well they had to face failure at many places because of that.

Round: Technical Interview
Experience: This round of mine i think was flawless i answered every questions. Step by step discussion with the panel on every question presented my point well .
Tips: Try to discuss your every doubt with interviewer about the questions and even if don't know the answer try to solve the problem interviewer will help you .

Round: HR Interview
Experience: I didn't prepare the HR question so i was bit scared before the interview but i gone with the flow and answered all the questions as i actually felt . I had good knowledge on all my projects so i had no problem there.
Tips: Prepare the hr questions because i n many interviews it could have made the difference i was shortlisted in VISA and i think finally hr round made the difference. All the above rounds were elimination.

General Tips: Be focused every time , placement time in IIT can be very difficult . Don't get depressed if you don't get selected there are lot of companies.
Skills: Database, Algorithm, Operating System, C, C++ , JAVA
College Name: IIT KHARAGPUR
Funny Moments: I did not slept for 3 days because of the schedule , my three test gone bad because of that.

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Write a rest API which return employee data based on ID.
  • Ans. 

    Create a REST API to retrieve employee data by ID

    • Use a GET request to /employees/{id} endpoint

    • Query the database for employee data based on the provided ID

    • Return the employee data in JSON format

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Approached by Company and was interviewed in Jun 2024. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Rotate array leetcode question
  • Q2. Longest palindormic substring
  • Ans. 

    A palindrome is a word, phrase, number, or other sequence of characters that reads the same forward and backward.

    • Use dynamic programming to solve this problem efficiently.

    • Iterate through the string and expand around each character to find the longest palindrome.

    • Consider both odd and even length palindromes.

    • Example: Input 'babad', Output 'aba' or 'bab'.

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. Print all the subsequences of a string
  • Ans. 

    Generate all possible subsequences of a given string.

    • Use recursion to generate all possible combinations of characters in the string.

    • At each step, include or exclude the current character to form subsequences.

    • Store each subsequence in an array of strings.

  • Answered by AI
  • Q2. Print longest substring with k unique values
  • Ans. 

    Find and print the longest substring with k unique characters in an array of strings.

    • Iterate through the array of strings and keep track of the longest substring with k unique characters.

    • Use a sliding window approach to efficiently find the longest substring.

    • Keep a hashmap to store the frequency of characters in the current window.

    • Update the window boundaries based on the number of unique characters.

    • Return the longest

  • Answered by AI
Round 3 - HR 

(1 Question)

  • Q1. Behaviour quesions

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. General DSA question leetcode style
Round 2 - Technical 

(1 Question)

  • Q1. Discussion on previous project
Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via campus placement at Maulana Azad National Institute of Technology (NIT), Bhopal and was interviewed in Jul 2024. There were 2 interview rounds.

Round 1 - Coding Test 

3 questions easy-medium level leetcode problem I solved 2 completely and 3rd question partially (9/15 test cases passed) to move on to 2nd round

Round 2 - Coding Test 

(1 Question)

  • Q1. Implement an app similar to splitwise
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Apr 2024. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Stack based question Medium Difficulty DSA.
  • Q2. Theory questions related Java, Spring, OOPs
Round 2 - Technical 

(3 Questions)

  • Q1. Medium-hard DSA question.
  • Q2. Project related questions
  • Q3. Design Patterns
Round 3 - HR 

(1 Question)

  • Q1. Company fit questions
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Based on linked list
Round 2 - Technical 

(1 Question)

  • Q1. Based in tree Data Structure
Round 3 - Technical 

(1 Question)

  • Q1. Based on the graph and one from aptitude

Interview Preparation Tips

Interview preparation tips for other job seekers - Medium-level DSA questions
Interview experience
4
Good
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Coding Test 

1. PEAK ELEMENT QUESTION.
2. COIN DENOMINATION

Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Approached by Company and was interviewed in Sep 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Create pagination component using an api show the data for the pages
  • Ans. 

    Create a pagination component using an API to display data for different pages.

    • Use API to fetch data for each page

    • Implement pagination logic to display data for each page

    • Allow users to navigate between pages

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Mar 2024. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Js question with code snippets
Round 2 - Coding Test 

Given some ant ui design to reacreate from scretch

Round 3 - One-on-one 

(1 Question)

  • Q1. Asked system design for online movie booking plateform

CommonFloor Interview FAQs

What are the top questions asked in CommonFloor Software Engineer interview?

Some of the top questions asked at the CommonFloor Software Engineer interview -

  1. What do you know about commonflo...read more
  2. Few dynamic programming probl...read more
  3. One sorting based questi...read more

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