Buyhatke Interview Experience for SDE (On-Campus) 2023

BuyHatke is an E-commerce startup and its main focus is to compare prices for online shopping. It was an On-Campus Internship Drive for 6 months and a PPO for a pre-final year in June 2023 where eligible candidates should have a percentage of 75 or above.

It consists of 3 rounds.

Online Coding Round :

• There was a coding round consisting of 4 coding questions and 10 subjective and objective questions based on DBMS, OS, and WEB development.
• Coding questions were Medium level problems involving concepts like binary search, hashmap, and dynamic programming :
  • Maximum Boundary
  • Smart Shopkeeper
  • Sam and Friends
  • Near perfect String
• 14 students were selected after this round.

Technical Rounds: There were two technical interview rounds. 

Technical Round 1:  It was a 30-minute Google Meet based Interview, in this round

1. My interviewer asked me to introduce myself and brief him about my projects.
2. Then I was asked a few questions related to my projects and to demonstrate any of my projects.
3. Then I was asked 2 DSA Algorithms Questions.
   1. A question related to Buying and selling stock.
   2. Maximum Product of Word Lengths
4. I was asked to give optimized approaches as well as the asymptotic analysis of both problems.
5. 4 students were selected for the second technical interview.

Technical Round 2: Once again the interview started with introductions and a discussion of my projects.

I was asked few questions related to Blockchain as I had mentioned a project based on blockchain and feature engineering in my resume.

Then I was asked questions based on WEB DEVELOPMENT , MYSQL, DSA and LOGICAL REASONING.

CSS :

1. In how many ways can we add css in a Html page.

Logical questions:

1.  Calculate the number of trailing zeros present in the factorial of a number.
2.  How can we use a 7 minutes hourglass  and a 4 minutes hourglass to measure 9 minutes.

Coding questions :

1. In an array each element is present two times except one element. How can we find that element? (https://www.geeksforgeeks.org/problems/find-the-odd-occurence4820/1?page=1&category[]=Hash&sortBy=difficulty)
2.  Calculate the number of trailing zeros present in the factorial of a number.

DBMS query:

1. Find the 3rd highest salary from the Employee table (with a follow up question to write the same query for nth highest salary).

After this round only 1 student was selected for the internship.