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I applied via Job lever and was interviewed before Sep 2021. There were 2 interview rounds.
Easy leetcode code 2 questions , HTML5 css javascript simple screen design
I applied via LinkedIn and was interviewed in May 2021. There was 1 interview round.
I was interviewed before Sep 2020.
Round duration - 120 minutes
Round difficulty - Easy
It was a mix of mathematical aptitude, logical ability, and puzzles along with 2 programming questions of easy and medium level. Time was enough and no sectional time was present. 1-2 MCQs on SQL were also present.
This round was immediately followed by an SHL aptitude test which was basically a quick limited time check of your verbal ability and math because many questions were to be done in 1 hour.
Given a 2-dimensional boolean matrix mat
of size N x M, your task is to modify the matrix such that if any element is 1, set its entire row and column to 1. Specifi...
Modify a boolean matrix such that if any element is 1, set its entire row and column to 1.
Iterate through the matrix and mark rows and columns to be modified
Use additional arrays to keep track of rows and columns to be modified
Update the matrix in-place based on the marked rows and columns
Round duration - 60 minutes
Round difficulty - Easy
It was an online video interview round on HackerEarth with simultaneous code option. It was mostly justifying your resume in the first 15 minutes. After that OOPS was majorly asked. Basics of programming including questions on STL were asked. A class which required inheritance was asked by the interviewer to write. I was helped by the interviewer if i got stuck somewhere, Some questions on implementation of hashmaps and priority queues were also asked. A puzzle was asked which luckily struct to me at that moment.
Tip 1 : Never give up
Tip 2 : When u start a topic, don't move on to next topic before you are 100% confident in previous topic
Tip 3 : Try to give maximum time on basics of a topic especially OOPS
Tip 4 - Practice Atleast 250 Questions
Tip 5 - Ex- Do atleast 2 projects
Tip 1 : Write only those things in resume in which you are 100% confident
Tip 2 : Write maximum projects you have and be ready to explain them thoroughly
Tip 3 : Don't make any silly spelling mistakes on resume
I applied via Job Portal and was interviewed before Nov 2023. There were 3 interview rounds.
Use a user table with a column for user type (free, gold, platinum)
Create a user table with columns for user ID, name, email, user type
Use a separate table for user types with columns for type ID and type name
Establish a one-to-many relationship between user and user type tables
Example: user table - user_id, name, email, type_id; user_type table - type_id, type_name
High-level design for a live rank dashboard for a live test with millions of users.
Use a scalable architecture to handle millions of users concurrently.
Implement real-time data processing to update ranks dynamically.
Utilize caching mechanisms to improve performance and reduce load on the database.
Design a user-friendly interface with intuitive data visualization.
Include features for filtering, sorting, and searching to
posted on 17 Jul 2023
I applied via Recruitment Consulltant and was interviewed before Jul 2022. There were 2 interview rounds.
let is mutable and can be reassigned, const is immutable and cannot be reassigned
let allows reassignment of values, const does not
const must be initialized with a value, let can be declared without a value
const is block-scoped, let is function-scoped
Closures are functions that have access to variables from their containing scope even after the parent function has finished executing.
Closures allow functions to maintain access to variables from their parent scope
They are created when a function is defined within another function
Closures are commonly used in event handlers and callbacks
typeof null returns 'object' in JavaScript.
typeof null is 'object' in JavaScript
This is a historical bug in JavaScript that has not been fixed for backward compatibility
Example: console.log(typeof null) will output 'object'
Finding palindrome strings in an array of strings.
Iterate through each string in the array.
For each string, check if it is equal to its reverse to determine if it is a palindrome.
Store palindrome strings in a separate array or print them out.
Debouncing is a technique used to limit the rate at which a function is called.
Debouncing is used to prevent multiple rapid calls to a function, typically in response to user input.
It involves setting a delay before allowing the function to be called again.
Example: Debouncing a search input field to only trigger the search function after the user has stopped typing for a certain period.
posted on 27 Jul 2021
I was interviewed in Feb 2021.
posted on 17 Aug 2022
I applied via LinkedIn and was interviewed in Feb 2022. There were 2 interview rounds.
React is a JavaScript library for building user interfaces. It is different from Angular in various ways.
React is a library while Angular is a framework
React uses virtual DOM while Angular uses real DOM
React is more flexible and easier to learn than Angular
Deep copy creates a new object with the same values while shallow copy creates a new reference to the same object
Hoisting is a JavaScript mechanism where variables a...
Implement custom hooks and array flat method
Custom hooks are reusable functions that allow you to extract component logic into reusable functions
Array flat method is used to flatten an array of nested arrays into a single array
To implement custom hooks, create a function that uses the useState and useEffect hooks
To implement array flat method, use the reduce method to flatten the array
I was interviewed before May 2021.
Round duration - 60 Minutes
Round difficulty - Easy
It was an coding round
Compute the skyline of given rectangular buildings in a 2D city, eliminating hidden lines and forming the outer contour of the silhouette when viewed from a distance. Each building is ...
Compute the skyline of given rectangular buildings in a 2D city, eliminating hidden lines and forming the outer contour of the silhouette.
Iterate through the buildings and create a list of critical points (x, y) where the height changes.
Sort the critical points based on x-coordinate and process them to form the skyline.
Merge consecutive horizontal segments of equal height into one to ensure no duplicates.
Return the fin...
You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...
Find all possible paths for a rat in a maze from source to destination.
Use backtracking to explore all possible paths in the maze.
Keep track of visited cells to avoid revisiting them.
Recursively try moving in all directions (up, down, left, right) until reaching the destination.
Return a list of strings representing valid paths sorted in alphabetical order.
Round duration - 30 Minutes
Round difficulty - Easy
It was an HR round with some general questions. it was just for formality.
Tip 1 : Stay focused
Tip 2 : Practice coding questions.
Tip 3 : View previous interviews of the companies
Tip 1 : Don't lie on resume
Tip 2 : Just write in format that is catchy
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