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I applied via Walk-in and was interviewed in Nov 2022. There were 3 interview rounds.
English verbal and written test.
Worked as a software engineer at XYZ Corp for 2 years.
Developed and maintained web applications using Java and AngularJS.
Collaborated with cross-functional teams to deliver projects on time.
Participated in code reviews and contributed to improving code quality.
Mentored junior developers and helped them with their tasks.
Attended training sessions to keep up with the latest technologies.
I want to join Acko because of its innovative approach to insurance and its focus on customer satisfaction.
I am impressed by Acko's use of technology to simplify the insurance process for customers.
Acko's customer-centric approach aligns with my own values and beliefs.
I am excited about the opportunity to work with a dynamic and talented team at Acko.
Acko's growth potential and commitment to innovation make it an attra
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I appeared for an interview before Sep 2020.
Round duration - 90 mins
Round difficulty - Hard
There were questions related to DP and DFS.
You are given a long type array/list ARR
of size N
, representing an elevation map. The value ARR[i]
denotes the elevation of the ith
bar. Your task is to determine th...
Calculate the total amount of rainwater that can be trapped between given elevations in an array.
Iterate through the array and calculate the maximum height on the left and right of each bar.
Calculate the amount of water that can be trapped at each bar by taking the minimum of the maximum heights on the left and right.
Sum up the trapped water at each bar to get the total trapped water for the entire array.
Round duration - 60 mins
Round difficulty - Medium
At first, I was asked about the different projects that I have done so far. We had a detailed discussion on the same.
He also checked my OOP concepts
Designing an LRU Cache involves implementing a data structure that stores a fixed number of items and removes the least recently used item when full.
Start by defining the data structure for the cache, typically using a combination of a hashmap and a doubly linked list.
Implement methods for getting and setting key-value pairs in the cache.
When a new item is added to the cache, check if it exceeds the maximum capacity. I...
Given a Singly Linked List of integers, your task is to reverse the Linked List by altering the links between the nodes.
The first line of input is an intege...
Reverse a singly linked list by altering the links between nodes.
Iterate through the linked list and reverse the links between nodes
Use three pointers to keep track of the current, previous, and next nodes
Update the links between nodes to reverse the list
Return the head of the reversed linked list
You are given the head node of a singly linked list. Your task is to return a pointer pointing to the middle of the linked list.
If there is an odd number of elements, return the ...
Return the middle element of a singly linked list, or the one farther from the head if there are even elements.
Traverse the linked list with two pointers, one moving twice as fast as the other
When the fast pointer reaches the end, the slow pointer will be at the middle
If there are even elements, return the one that is farther from the head node
Handle edge cases like linked list of size 1 or empty list
Round duration - 60 mins
Round difficulty - Medium
It is HR + Technical round
asked about the Behavioural questions and how you justify yourself in an argument .questions related to current technology.
They gave me feedback on how well I had performed so far and gave me suggestions on what more can I do to further improve myself.
Tip 1 : Be thorough about your projects
Tip 2 : Prepare Ds and Algo and Practice all standard questions
Tip 3 : Know the complexities of the code that you’ve written.
Tip 1 : Mention at least 2 projects.
Tip 2 : Don't make any silly spelling mistakes on resume
Race condition is a situation where multiple threads/processes access and manipulate shared data simultaneously.
It can be eliminated by using synchronization techniques like locks, semaphores, and mutexes.
Another way is to use atomic operations that ensure the data is accessed and modified atomically.
Using thread-safe data structures can also prevent race conditions.
Example: Two threads trying to increment a shared var...
JCube is a Java library for creating and manipulating Rubik's Cube puzzles.
JCube provides classes for representing Rubik's Cube puzzles and algorithms for solving them.
It supports various cube sizes and can generate random scrambles.
JCube can be used in Java applications or as a standalone command-line tool.
It is open source and available on GitHub.
Regression testing is the process of testing changes made to a software application to ensure that existing functionality still works.
It is performed after making changes to the software
It ensures that existing functionality is not affected by the changes
It helps to catch any defects or bugs that may have been introduced
It can be automated using testing tools
Examples include retesting after bug fixes, testing after new
Software engineering principles are the best practices and guidelines for developing high-quality software.
Software should be designed with modularity and scalability in mind.
Code should be well-documented and easy to read.
Testing and debugging should be an integral part of the development process.
Version control should be used to manage code changes.
Security and privacy should be considered throughout the development
A Singleton class is a class that can only have one instance at a time.
It restricts the instantiation of a class to a single object.
It provides a global point of access to that instance.
It is often used in situations where a single object is required to coordinate actions across a system.
Example: Database connection manager, Configuration manager, Logger manager.
Testing principles ensure software quality, while design principles guide software development.
Testing principles include unit testing, integration testing, and acceptance testing.
Design principles include SOLID, DRY, and KISS.
Testing principles ensure that software meets requirements and is free of defects.
Design principles guide software development to be modular, maintainable, and scalable.
I have the necessary skills, experience, and passion to contribute to VISA's success.
I have a strong background in software development and have worked on projects similar to those at VISA.
I am a quick learner and can adapt to new technologies and programming languages easily.
I am passionate about creating high-quality software that meets the needs of users and exceeds their expectations.
I am a team player and can work...
A profile that challenges me to learn and grow while allowing me to contribute to a team.
A position that encourages continuous learning and development
A role that allows me to collaborate with a team and contribute to projects
A company culture that aligns with my values and work ethic
I am interested in exploring new opportunities and challenges that this company can offer.
I am impressed with the company's reputation and growth potential.
I am excited about the projects and technologies this company is working on.
I believe this company can provide me with a better work-life balance and career growth opportunities.
I am looking for a company culture that aligns with my values and goals.
I am open to exp...
Developed a web application using Python and Django framework for managing inventory and sales.
Used Python programming language for backend development
Implemented Django framework for building web application
Designed database schema for inventory and sales data
Integrated frontend using HTML, CSS, and JavaScript
Implemented user authentication and authorization features
I applied via Campus Placement and was interviewed in Sep 2016. There were 4 interview rounds.
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
My resume highlights my experience in software development and showcases my skills in various programming languages and technologies.
Worked on multiple projects using Java, Python, and C++
Developed web applications using HTML, CSS, and JavaScript
Experience with databases such as MySQL and MongoDB
Familiarity with Agile methodology and version control systems like Git
Participated in hackathons and coding competitions
I want to go for VISA to explore new opportunities and gain international experience.
To gain exposure to different cultures and work environments
To expand my skill set and learn new technologies
To work on challenging projects and contribute to the growth of the company
To build a global network of professionals and enhance my career prospects
A binary tree is a data structure in which each node has at most two children.
Start with a root node
Each node has a left and right child
Nodes can be added or removed
Traversal can be done in-order, pre-order, or post-order
Code a basic linked list
Create a Node class with data and next pointer
Create a LinkedList class with head pointer
Implement methods to add, delete, and search nodes in the linked list
A circular linked list is a data structure where the last node points back to the first node, forming a loop.
Create a Node class with data and next pointer
Initialize the head node and set its next pointer to itself
To add a node, create a new node and set its next pointer to the head node's next pointer, then update the head node's next pointer to the new node
To traverse the circular linked list, start from the head nod...
I applied via Campus Placement and was interviewed in Dec 2016. There were 3 interview rounds.
Find subset of numbers in array that sum up to zero.
Use a nested loop to iterate through all possible subsets.
Calculate the sum of each subset and check if it equals zero.
Store the subset if the sum is zero.
Optimize the solution by using a hash set to store the cumulative sum of elements.
BFS (Breadth-First Search) is a graph traversal algorithm that explores all the vertices of a graph in breadth-first order.
BFS starts at a given vertex and explores all its neighbors before moving to the next level of vertices.
It uses a queue data structure to keep track of the vertices to be visited.
BFS guarantees that it visits all the vertices of a connected graph.
It can be used to find the shortest path between two
In 5 years, I see myself as a highly skilled software developer, leading a team and contributing to innovative projects.
Continuously improving my technical skills through learning and hands-on experience
Taking on leadership roles and mentoring junior developers
Contributing to the development of cutting-edge software solutions
Building strong relationships with clients and stakeholders
Staying updated with the latest indu...
I applied via Campus Placement
Object Oriented Programming is a programming paradigm that uses objects to represent real-world entities.
Encapsulation: bundling data and methods that operate on that data within one unit
Inheritance: creating new classes from existing ones, inheriting their properties and methods
Polymorphism: ability of objects to take on multiple forms or behaviors
Abstraction: hiding complex implementation details and providing a simp...
Abstraction is hiding implementation details while polymorphism is using a single interface for multiple types.
Abstraction: Encapsulation, Interfaces, Abstract classes
Polymorphism: Method Overloading, Method Overriding, Interfaces
Abstraction Example: Car - we don't need to know how the engine works to drive it
Polymorphism Example: Animal - different animals have different sounds but they all have a 'makeSound' method
PayPal is an online payment system that allows individuals and businesses to transfer funds electronically.
Allows users to make payments and money transfers online
Offers a secure and convenient way to pay for goods and services
Provides a platform for businesses to accept payments online
Offers buyer and seller protection for eligible transactions
Can be used to send and receive money internationally
I am excited to join PayPal because of its innovative culture and impact on the global economy.
PayPal's commitment to innovation aligns with my passion for staying up-to-date with the latest technologies.
I am impressed by PayPal's global reach and impact on the economy, and I want to be a part of that.
I appreciate PayPal's focus on diversity and inclusion, and I believe in the importance of working for a company with s...
I appeared for an interview before Jan 2021.
Round duration - 60 minutes
Round difficulty - Easy
I couldn't find an optimal approach to the first question, so she skipped that question and proceeded to next questions. Remaining questions I have answered satisfactorily.
Given an array/list of positive integers and an integer K, determine if there exists a subset whose sum equals K.
Provide true
if such a subset exists, otherwise r...
Given an array of positive integers and an integer K, determine if there exists a subset whose sum equals K.
Use dynamic programming to solve this problem efficiently
Create a 2D array to store if a subset with a particular sum exists
Iterate through the array and update the 2D array accordingly
Check if the value at the end of the iteration is true for the given K
Given an undirected and disconnected graph G(V, E) where V vertices are numbered from 0 to V-1, and E represents edges, your task is to output the BFS traversal starting from the ...
BFS traversal in a disconnected graph starting from vertex 0.
Implement BFS algorithm to traverse the graph starting from vertex 0.
Use a queue to keep track of visited nodes and their neighbors.
Ensure to print the traversal sequence in the correct order.
Handle disconnected components by checking for unvisited nodes.
Follow the BFS approach of exploring neighbors before moving to the next level.
Round duration - 60 minutes
Round difficulty - Easy
I told that my strength is problem solving and I can always find a way when there is a bottle-neck. Gave some examples of my experiences while doing my assignments.
Given a string STR
consisting of words separated by spaces, your task is to replace all spaces between words with the characters "@40".
The first line contains an integ...
Replace spaces in a string with '@40'.
Iterate through each character in the string
Replace spaces with '@40'
Return the modified string
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
based on 1 interview
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