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Hacker Rank, 5 questions in total. Topics include operating system, dynamic programming, sql, and so on.
The underlying database of MySQL is InnoDB.
InnoDB is the default storage engine for MySQL.
It provides ACID-compliant transactions.
Supports foreign keys for referential integrity.
InnoDB is designed for high performance and scalability.
Computers connect with each other using IP/TCP through a series of protocols and addressing schemes.
IP (Internet Protocol) assigns a unique address to each device on a network.
TCP (Transmission Control Protocol) manages the transmission of data between devices.
Devices communicate by sending packets of data over the network using IP addresses and port numbers.
Routers and switches help route the packets to their destinat...
Design a search algorithm to find the top k elements in a dataset.
Use a priority queue to efficiently retrieve the top k elements.
Implement a max heap to keep track of the top k elements.
Consider using quickselect algorithm for optimal performance.
Optimize the search algorithm for time complexity O(n log k).
Tiny URL design involves creating a shorter version of a long URL for easier sharing and tracking.
Use a hashing algorithm to generate a unique short code for each long URL
Store the mapping of short code to long URL in a database
Redirect users from short URL to original URL when accessed
I applied via Company Website and was interviewed before Oct 2021. There were 2 interview rounds.
A coding test in hackrank, 120 min, 5 programming puzzles.
Implement a circular queue using an array with enqueue and dequeue operations.
Use a fixed-size array to store elements.
Maintain two pointers: front and rear to track the queue's ends.
Implement enqueue operation: check if the queue is full before adding an element.
Implement dequeue operation: check if the queue is empty before removing an element.
Handle wrap-around using modulo operation for circular behavior.
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I applied via Campus Placement and was interviewed in Jun 2021. There was 1 interview round.
My dream is to create innovative software solutions that positively impact people's lives and drive technological advancement.
Building User-Centric Applications: I aspire to develop applications that prioritize user experience, like a health tracking app that motivates users to lead healthier lives.
Contributing to Open Source: I dream of contributing to open-source projects, collaborating with developers worldwide to c...
I appeared for an interview in May 2025, where I was asked the following questions.
I applied via Recruitment Consulltant and was interviewed in Sep 2021. There were 2 interview rounds.
Apti and coding
I applied via LinkedIn and was interviewed in Nov 2023. There was 1 interview round.
Easy and medium level questions on array linked list
I applied via Recruitment Consulltant and was interviewed in Feb 2024. There were 2 interview rounds.
First round was coding test in online mode which was quite easy.
I applied via Referral and was interviewed in Mar 2024. There were 3 interview rounds.
Given some ant ui design to reacreate from scretch
Design an online movie booking platform for users to browse, book, and manage movie tickets seamlessly.
User Authentication: Allow users to register, log in, and manage their profiles.
Movie Listings: Provide a searchable database of movies with details like showtimes, genres, and ratings.
Booking System: Implement a real-time booking system to handle ticket reservations and payments.
Seat Selection: Enable users to select...
I applied via Approached by Company and was interviewed in Sep 2024. There was 1 interview round.
based on 3 interview experiences
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