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HackerRank Interview Questions and Answers
8 Interview questions
Develop a Chess UI for users to play the game online.
Create a chessboard with 64 squares
Implement drag-and-drop functionality for moving pieces
Display captured pieces on the side of the board
Include options for player vs player or player vs computer
Add a timer for each player's turn
Creating specific components for software development
Identify the requirements for the component
Design the component architecture
Implement the component using appropriate programming languages and tools
Test the component for functionality and performance
Integrate the component into the larger software system
Implement route optimization, provide real-time traffic updates, incentivize faster deliveries, and streamline order assignment process.
Implement route optimization software to suggest the most efficient delivery routes.
Provide real-time traffic updates to delivery partners to help them avoid congested areas.
Incentivize faster deliveries by offering bonuses or rewards for exceeding delivery targets.
Streamline the ...
To address poor audio/video connections, we need to identify root causes and implement targeted solutions for users.
Conduct a survey to gather specific feedback from users about their connection issues.
Analyze network performance data to identify common patterns or bottlenecks.
Provide users with guidelines for optimal connection settings, such as recommended bandwidth and device specifications.
Implement a troubles...
Design a system similar to BookMyShow for booking tickets for events and movies.
User registration and login system
Event and movie listing with details and show timings
Seat selection and booking process
Payment gateway integration
Booking history and ticket download option
Functional components are simpler and easier to test, while class components offer more features and lifecycle methods.
Use functional components for simple UI components
Use class components for more complex UI components
Functional components are easier to read and maintain
Class components offer more lifecycle methods and state management options
HTML, CSS, and JavaScript are executed by the browser in a specific order to render web pages.
HTML is parsed by the browser to create the Document Object Model (DOM)
CSS is then applied to style the elements on the page
JavaScript is executed to add interactivity and dynamic behavior to the page
Designing a Google Sheet involves organizing data, formatting cells, creating formulas, and sharing with collaborators.
Organize data into rows and columns
Use formatting options for clarity and visual appeal
Utilize formulas for calculations and data manipulation
Share the sheet with collaborators for real-time editing
Protect sensitive information with permissions
HackerRank Interview Experiences
23 interviews found
Anonymous
It was a Coding Interview with 2 basic DSA Questions
(1 Question)
- Q1. It was a LLD discussion to create a service like Bookmyshow.
(1 Question)
- Q1. A high level design interview around Google Docs
(1 Question)
- Q1. A Technical Discussion with the Hiring Manager
(1 Question)
- Q1. A value fit round by the HR
I applied via Company Website and was interviewed in May 2024. There were 5 interview rounds.
Online Aptitude and communication test
(2 Questions)
- Q1. Questions about past work experience
- Q2. Some users complain of poor audio/video connection during the online rounds. How would to solve this?
- Ans.
To address poor audio/video connections, we need to identify root causes and implement targeted solutions for users.
Conduct a survey to gather specific feedback from users about their connection issues.
Analyze network performance data to identify common patterns or bottlenecks.
Provide users with guidelines for optimal connection settings, such as recommended bandwidth and device specifications.
Implement a troubleshooti...
(1 Question)
- Q1. Case study - How would you improve efficiency (higher orders delivered per hour) for zomato delivery partners?
- Ans.
Implement route optimization, provide real-time traffic updates, incentivize faster deliveries, and streamline order assignment process.
Implement route optimization software to suggest the most efficient delivery routes.
Provide real-time traffic updates to delivery partners to help them avoid congested areas.
Incentivize faster deliveries by offering bonuses or rewards for exceeding delivery targets.
Streamline the order...
(1 Question)
- Q1. Round with Engineering Manager. How do manage stakeholders? Prioritisation techniques etc
(1 Question)
- Q1. Cultural fit round
Interview Preparation Tips
- Product Design Case interview
I applied via Approached by Company and was interviewed in Nov 2024. There was 1 interview round.
(2 Questions)
- Q1. What are your projects
- Ans.
I have worked on several projects, including a RESTful API for a task management app and a web scraper for real-time data collection.
Developed a RESTful API using Node.js and Express for a task management application, enabling users to create, update, and delete tasks.
Implemented user authentication with JWT to secure API endpoints and manage user sessions.
Created a web scraper using Python and Beautiful Soup to collec...
- Q2. Why you want to join hackerrank
- Ans.
I want to join HackerRank to enhance my skills, contribute to innovative projects, and be part of a dynamic tech community.
HackerRank's focus on coding challenges aligns with my passion for problem-solving and continuous learning.
The opportunity to work with experienced developers will help me grow and refine my backend development skills.
I admire HackerRank's commitment to improving the hiring process through technolo...
Interview Preparation Tips
It was a aptitude test with unit test cases where you have to create election poll application in react
(1 Question)
- Q1. Develop Chess UI
- Ans.
Develop a Chess UI for users to play the game online.
Create a chessboard with 64 squares
Implement drag-and-drop functionality for moving pieces
Display captured pieces on the side of the board
Include options for player vs player or player vs computer
Add a timer for each player's turn
(1 Question)
- Q1. Overall tech discussion about current job
Designing a star rating system
(1 Question)
- Q1. Designing google sheet
- Ans.
Designing a Google Sheet involves organizing data, formatting cells, creating formulas, and sharing with collaborators.
Organize data into rows and columns
Use formatting options for clarity and visual appeal
Utilize formulas for calculations and data manipulation
Share the sheet with collaborators for real-time editing
Protect sensitive information with permissions
Interview Preparation Tips
Don't waste your time interviewing for the company.
or ask the HR point blank that the asked salary is ok before interviewing!!
Skills evaluated in this interview
I applied via Company Website and was interviewed in Oct 2024. There was 1 interview round.
There is 2 major Coding Questions using lot of major languages
I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.
(1 Question)
- Q1. Design a db for movie ticket booking system/ book my show like
- Ans.
Design a database schema for a movie ticket booking system similar to BookMyShow.
Create tables for movies, theaters, users, bookings, and seats
Use foreign keys to establish relationships between tables
Include columns for movie details, show timings, seat availability, user information, and booking details
Implement indexes for faster retrieval of data
Consider implementing a caching mechanism for frequently accessed data
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in Apr 2024. There were 2 interview rounds.
(1 Question)
- Q1. 1) Tell me about yourself. 2) What do you know about company
(1 Question)
- Q1. Why hackerrank? What are you looking for in your next role
2 simple questions were asked and related time and space complexity was asked.
Use any language
Aniket Singh
I applied via Job Portal
In first round, interviewer asked 2 coding questions and to write code on the call itslef.
(2 Questions)
- Q1. HLD - High level Design
- Q2. Design a system similar to BookMyShow
- Ans.
Design a system similar to BookMyShow for booking tickets for events and movies.
User registration and login system
Event and movie listing with details and show timings
Seat selection and booking process
Payment gateway integration
Booking history and ticket download option
(1 Question)
- Q1. LLD - Low level design
(1 Question)
- Q1. Database schema design
Skills evaluated in this interview
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