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Oops concepts refer to Object-Oriented Programming principles like Inheritance, Polymorphism, Encapsulation, and Abstraction.
Inheritance: Allows a class to inherit properties and behavior from another class.
Polymorphism: Ability of objects to take on multiple forms.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Abstraction: Hiding the complex implementation details and showing only
I appeared for an interview in Sep 2020.
Round duration - 90 minutes
Round difficulty - Medium
Timing - Late in the evening(7pm - 8 pm)
Virtual round, can give from home.
Had to keep webcam on during the test.
Tab switching was not allowed, and activity was monitored.
Round duration - 20 minutes
Round difficulty - Medium
Round in the morning, with 2 interviewers.
Questions based on Resume.
Given an array of integers arr
, determine the length of the longest contiguous subarray that sums to zero.
N (an integer, the length of the array)
arr (...
Find the length of the longest contiguous subarray with zero sum in an array of integers.
Use a hashmap to store the prefix sum and its corresponding index.
Iterate through the array and update the hashmap with the current sum and index.
If the same sum is encountered again, the subarray between the two indices has a sum of zero.
Round duration - 20 minutes
Round difficulty - Easy
In the afternoon, with 3 recruiters, 2 HRs and 1 project manager.
Tip 1 : Thoroughly prepare about the skills on your resume. Expect questions from the same.
Tip 2 : Know your projects well, be ready with outcome of project, Tools and Technology used, any hardships during the project that you overcame. Have atleast 2 projects.
Tip 3 : Practice DSA questions and all the commonly asked algorithms and puzzles
Tip 1: Write your projects detailed - mostly in the following format: Name of the project, brief use case, tech stack used for development.
Tip 2: If you mention any Internships, use active verbs in the description - "Developed an Internal Dashboard which increased efficiency by 60%"
Tip 3: Mention your rank on sites like CodeForces, CodeChef(if they are good). Also add any extra-curriculars you were part of, Eg- "Vice President, Robotics Club ". Presents you as a well rounded individual
Top trending discussions
I appeared for an interview before Mar 2016.
posted on 13 Aug 2023
I applied via Campus Placement and was interviewed before Aug 2022. There were 3 interview rounds.
It was quantitative aptitude test with some coding questions
Joins, Jobs, stored procedures,cursors.
posted on 10 Jul 2024
LRU cache design involves maintaining a cache with limited capacity and removing the least recently used item when the cache is full.
Use a doubly linked list to maintain the order of items based on their usage.
Implement a hash map for fast access to items in the cache.
When a new item is accessed, move it to the front of the linked list to mark it as the most recently used.
When the cache is full, remove the item at the ...
posted on 13 Sep 2024
I applied via Naukri.com and was interviewed in May 2024. There were 3 interview rounds.
DSA , LLD on bar raiser
DSA, SQL and discussions around projects
A notification system to alert users of important events or updates.
Define types of notifications (e.g. email, SMS, push notifications)
Implement a user preference setting for notification frequency
Include a notification history for users to review past alerts
posted on 16 Oct 2024
I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.
1)Buy and sell stock
2)2 sum
3) system design
4) Elastic search
5) deployment
HackerEarth / Hacker rank Test
Using dynamic programming to find the lowest cost for metro passes based on given days.
Create an array to store the minimum cost for each day.
Iterate through each day and calculate the minimum cost based on 1, 7, or 30 day pass.
Update the minimum cost for each day using dynamic programming.
Return the minimum cost for the total number of days needed.
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