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useRef is a hook in React that allows you to create a mutable ref object.
useRef is used to access DOM nodes or store mutable values that persist across renders.
It can be used to focus an input field, measure the size of an element, or store previous values.
Example: const inputRef = useRef(null);
React is a JavaScript library for building user interfaces, commonly used in web development projects.
React is a declarative, efficient, and flexible JavaScript library for building user interfaces.
It allows developers to create reusable UI components that can be easily composed to build complex user interfaces.
React uses a virtual DOM to improve performance by only updating the parts of the actual DOM that have change...
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It was an online test
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
I am a passionate software developer with experience in Java, Python, and web development.
Graduated with a degree in Computer Science
Worked on various projects using Java and Python
Familiar with web development technologies like HTML, CSS, and JavaScript
I applied via LinkedIn and was interviewed in Nov 2024. There was 1 interview round.
General aptitude focused on mathematics.
I appeared for an interview in Oct 2020.
Round duration - 90 minutes
Round difficulty - Medium
The online round was conducted on Hackerearth around 11:30 PM
This round was an online coding plus MCQ round which includes 15 MCQ with positive 4 and negative 1 and 3 coding questions with two questions 10 marks and one was of 20 marks . MCQ were easy to medium and covers all the topic of Networks OOPS DBMS and CPP/JAVA
In Coding section one 20 marks question was medium and two 10 marks were of easy level, like if you practice regularly you can crack two 10 marks means you can score 20 marks out of 40 in coding
You are given a source point (sx, sy) and a destination point (dx, dy). Determine if it is possible to reach the destination point using only the following valid mo...
The problem involves determining if it is possible to reach a destination point from a source point using specified moves.
Iterate through each test case and check if destination is reachable from source using specified moves
Implement a recursive function to simulate the moves and check if destination is reached
Consider constraints to optimize the solution
Example: For input (1, 1, 3, 5), the output should be true as des
Given an infinite supply of coins of varying denominations, determine the total number of ways to make change for a specified value using these coins. If it's not possible to make...
The task is to find the total number of ways to make change for a specified value using given denominations.
Use dynamic programming to solve this problem efficiently.
Create a 1D array to store the number of ways to make change for each value from 0 to the target value.
Iterate through the denominations and update the array based on the current denomination.
The final answer will be the value at the target index of the ar
In Ninja town, represented as an N * M
grid, people travel by jumping over buildings in the grid's cells. Santa is starting at cell (0, 0) and must deliver gifts to cell (N-1, ...
Santa needs to find the quickest path to deliver gifts in Ninja town by jumping over buildings with least travel time.
Santa starts at (0, 0) and needs to reach (N-1, M-1) on Christmas Eve.
Santa can jump to (x+1, y+1), (x+1, y), or (x, y+1) from any cell (x, y).
Travel time between two buildings equals the absolute difference in their heights.
Find the quickest path with least travel time.
Example: For grid [[1, 3, 5], [2,
Round duration - 50 minutes
Round difficulty - Medium
It was a technical interview which was scheduled on 16th October 2020 at 10:00 AM
This round mainly focus on your DSA, DBMS , OS Networking and coding skills like how optimised you can write code
This round was conducted on Zoom
Their were 2 interviewers and both of them were very calm and supportive
Determine if an array contains a Pythagorean triplet by checking whether there are three integers x, y, and z such that x2 + y2 = z2 within the array.
The first lin...
Detect if an array contains a Pythagorean triplet by checking if there are three integers x, y, and z such that x^2 + y^2 = z^2.
Iterate through all possible triplets of numbers in the array and check if they form a Pythagorean triplet.
Use a nested loop to generate all possible combinations of three numbers from the array.
Check if the sum of squares of two numbers is equal to the square of the third number for each trip...
Determine if a given singly linked list of integers forms a cycle or not.
A cycle in a linked list occurs when a node's next
points back to a previous node in the ...
Detect if a singly linked list forms a cycle by checking if a node's next pointer points back to a previous node.
Use Floyd's Tortoise and Hare algorithm to detect a cycle in the linked list.
Maintain two pointers, one moving at twice the speed of the other.
If there is a cycle, the two pointers will eventually meet.
If one of the pointers reaches the end of the list (null), there is no cycle.
Round duration - 10 minutes
Round difficulty - Easy
This was the HR round conducted online through ZOOM on 16th October 2020 around 4:00 PM
There were two interviewers and both were quite good and frank
This round mainly focus on basic resume questions and about yourself
Tip 1 : Practice DSA and have a proper grasp on that as cramming wont help you because the questioned asked are different and you might get confused and rather you wont be able to answer at all
Tip 2 : When you are preparing for the company be it off campus or on-campus always go through the job description and read it carefully what technologies they use because they might ask some question related to it
Tip 3 : In my views if you are starting to code then start with GFG , for me it worked you will get all level question from basic and then you can move to platforms like LEETCODE , LEETFREE
Tip 4 : Don't rush ever if you think you are not able to solve question , don't panic everyone is not able to do good but the main thing is to develop your thought process and its done by practicing more and more questions
Tip 5 : While solving don't try to look for answer at once, read the question understand it try to make a flow chart on paper and try to code it if after a long try if you are not able to solve then have a look at it and analyze where you went wrong .
Tip 6 : Always make a time table it will help you to prepare well and on time with every concept
Tip 7 : Do a minimum of 2 to 3 projects that you know well because sometimes they may ask you to run in front of them and explain it so you should be confident enough to explain
Tip 8 : While giving a interview don't ever say a no to any question just try to answer what all you know related to it and reply in positive that you know that much related to this topic and don't try to fool them as they catch mistakes easily
Tip 9 : Last but not least always keep a smile on your face and don't be nervous it will help you to show that you are confident enough and it will be interesting for both of you .
Tip 1 : It should be a one page resume for freshers
Tip 2 : Keep it crisp , don't include everything about yourself , keep those details for the interview
Tip 3 : Read the JD know about the company, its vision and the requisites for the position you are applying for and develop the resume with the things keeping in mind
Tip 4 : You should be also clear about career objective because they may ask on your career objectives in HR or Managerial Round
Tip 5 : Organize the information while writing it , have a proper heading and all the extra information using bullet points and avoid writing paragraphs
Tip 6 : Keep the resume short and simple as the recruiter don't like the long and exaggerated resumes
Tip 7 : While writing your work experiences try to write your accomplishment not your duties .
Tip 8 : Only include the projects that you know well otherwise who knows if they ask something that you know , it may give a bad impression and chances can be low
Machine coding round
Developed a web application for managing inventory and sales for a retail store
Used React.js for front-end development
Implemented Node.js for back-end functionality
Utilized MongoDB for database management
I am a passionate software developer with experience in Java, Python, and web development.
Experienced in Java, Python, and web development technologies
Strong problem-solving skills
Team player with excellent communication skills
I haven't appeared but this website asking me everytime that's why giving review but I wanted to know what are the ratings for this company
I applied via LinkedIn and was interviewed before Oct 2022. There were 5 interview rounds.
Prectical test on relevant experience and position requirements.
based on 1 interview
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