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I applied via Naukri.com and was interviewed in May 2022. There were 6 interview rounds.
SOLID design principles and Design Patterns are used to create maintainable and scalable software.
SOLID principles help in creating loosely coupled and modular code.
Design Patterns provide reusable solutions to common software problems.
Examples of SOLID principles include Single Responsibility, Open/Closed, and Liskov Substitution.
Examples of Design Patterns include Factory, Singleton, and Observer.
Using SOLID principl...
2 questions, problem-solving, easy to medium difficulty.
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Basic aptitude test, 2 coding questions based on arrays. One was easy other was hard
Arrays are a data structure that stores a collection of elements of the same data type in contiguous memory locations.
Arrays have a fixed size determined at the time of declaration.
Elements in an array are accessed using an index starting from 0.
Arrays can store primitive data types or objects.
Example: String[] names = {"Alice", "Bob", "Charlie"};
A linked list is a data structure where each element points to the next element in the sequence.
Each element in a linked list, called a node, contains data and a reference to the next node in the sequence.
Linked lists can be singly linked (each node points to the next node) or doubly linked (each node points to both the next and previous nodes).
To traverse a linked list, you start at the head node and follow the refere...
posted on 8 Jan 2025
I applied via Company Website and was interviewed in Jul 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed before Jan 2024. There were 2 interview rounds.
Got 2 medium level DSA questions in the coding test
I applied via campus placement at Motilal Nehru Institute National Institute of Technology (NIT), Allahabad and was interviewed in May 2022. There were 4 interview rounds.
There was 2 coding question
One was easy One was very Difficult
20 MCQ question from Operating system and DBMS
Find the longest consecutive subarray.
Iterate through the array and keep track of the current subarray length.
Update the maximum length as you iterate.
Reset the current subarray length when a non-consecutive element is encountered.
Minimum Spanning Tree (MST) is a tree that connects all vertices in a graph with minimum total edge weight.
MST can be found using Prim's algorithm or Kruskal's algorithm.
Prim's algorithm starts with a single vertex and adds the closest vertex to the tree until all vertices are included.
Kruskal's algorithm starts with the edges with the lowest weight and adds them to the tree as long as they don't create a cycle.
MST has...
I applied via Naukri.com and was interviewed before Oct 2022. There were 4 interview rounds.
Implement login with Google SSO, show emails in a single place
JWT can be implemented by generating a token with user information and a secret key, then verifying the token using the same secret key.
Generate a JWT token with user information and a secret key
Include necessary claims like expiration time, issuer, etc.
Verify the JWT token using the same secret key
Handle token expiration and refresh if needed
Middleware in Express is a function that has access to the request and response objects.
Create a middleware function using app.use() method in Express.
Middleware functions have access to the request object (req), the response object (res), and the next middleware function in the application's request-response cycle.
Example: app.use((req, res, next) => { console.log('This is a middleware function'); next(); });
Lazy loading in Angular delays loading of modules until they are needed
Lazy loading helps improve performance by only loading modules when they are required
It is achieved by using the loadChildren property in the route configuration
Lazy loaded modules are loaded asynchronously when the user navigates to the corresponding route
Server-side rendering (SSR) in Angular can be enabled by using Angular Universal.
Install Angular Universal using Angular CLI
Create a new Angular Universal project
Update app.module.ts to include server-side rendering
Build and run the Angular Universal project
posted on 16 Sep 2021
I was interviewed in Feb 2021.
Round duration - 70 Minutes
Round difficulty - Medium
Timing was 9:15AM. Platform was not very good. Questions were not well explained.
Given a specified number of intervals, where each interval is represented by two integers denoting its boundaries, the task is to merge all overlapping interv...
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...
Approach: We can start the traversal of the paths from the rat’s starting position, i.e. (0,0) keeping track of the visited cells during the traversal. We will recursively go through all the paths possible until the last index of the grid (destination) is reached, and add the path information using which the rat successfully reached the end.
Algorithm is as follows:
Given a string STR
consisting of lowercase English letters, your task is to return all permutations of the given string in lexicographically increasing order.
The idea is to fix a character at a position and then find the permutations for rest of the characters.
Make a list ‘ans’ which will contain the permutations of the given string.
Let’s define a function generatePermutaionsHelper(Str, l, r). This function generates the permutations of the substring which starts from index ‘l’ and ends at index ‘r’.
Tip 1 : Prepare maximum algorithms.
Tip 2 : Deep knowledge of data structure.
Tip 3 : OOPS is must.
Tip 1 : Keep it short.
Tip 2 : Mention only your own projects.
I applied via Company Website and was interviewed before Nov 2022. There were 4 interview rounds.
3 questions in 3 hr, topics were Dp, Strings, Tree
1hr durations 40 questions, main topics were patterns, profit loss, work man , etc.
I applied via Recruitment Consulltant and was interviewed before Feb 2023. There was 1 interview round.
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