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Tata Advanced Systems
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The question is asking about how often each character appears in a given string.
Iterate through the string and count the frequency of each character using a hashmap.
Return the hashmap with characters as keys and their frequencies as values.
I applied via Naukri.com and was interviewed in Jan 2020. There were 3 interview rounds.
Worked as a software engineer for 3 years at XYZ Company, specializing in front-end development.
Developed and maintained front-end features for web applications
Collaborated with cross-functional teams to deliver projects on time
Participated in code reviews and provided feedback for improvements
Utilized STL in previous work experience for efficient data manipulation and storage
Used vector to store and manipulate dynamic arrays of data
Utilized map for efficient key-value pair storage and retrieval
Implemented algorithms from the algorithm library for sorting and searching data
Used OOPS principles to design and implement a modular system for managing user data
Created classes for User, Admin, and Moderator with inheritance and polymorphism
Implemented encapsulation by restricting access to certain data fields through getters and setters
Utilized abstraction to hide complex implementation details from other parts of the system
Implemented interfaces for different user roles to ensure consistent b
Implemented multithreading in a web scraping project to improve performance and efficiency.
Used multithreading to scrape data from multiple websites simultaneously
Implemented thread pooling to manage and reuse threads efficiently
Utilized synchronization techniques to prevent data corruption and ensure thread safety
posted on 11 Mar 2025
I applied via LinkedIn and was interviewed in Apr 2022. There were 5 interview rounds.
React server side rendering generates HTML on the server while client side rendering generates HTML on the browser.
Server side rendering is better for SEO and initial page load time
Client side rendering is better for interactivity and dynamic content
Server side rendering requires more initial setup and configuration
Client side rendering can be easier to develop and maintain
To convert a class based component to functional component, we need to remove the class syntax and use hooks instead.
Remove the class syntax and replace it with a function
Remove the render method and return the JSX directly
Replace this.props with props
Use useState hook to manage state
Use useEffect hook to manage lifecycle methods
I applied via LinkedIn and was interviewed before Sep 2022. There were 3 interview rounds.
Normal Aptitude test for 1 hour
To reverse an array of strings, iterate through the array and swap elements from start to end.
Iterate through the array using two pointers, one starting from the beginning and the other from the end.
Swap elements at the two pointers until they meet in the middle.
Repeat until all elements are swapped and the array is reversed.
I applied via Job Fair and was interviewed before Oct 2022. There were 3 interview rounds.
OOPS focuses on objects and classes, while functional programming focuses on functions as first-class citizens.
OOPS involves concepts like inheritance, encapsulation, and polymorphism.
Functional programming emphasizes immutability, pure functions, and higher-order functions.
In OOPS, data is typically stored in objects with methods to manipulate the data.
Functional programming avoids side effects and mutable state.
Examp...
Basic leetcode problems
I appeared for an interview before Dec 2023.
I applied via Recruitment Consulltant and was interviewed before Feb 2021. There were 5 interview rounds.
Basic c Programming and Embedded Systems
RISC stands for Reduced Instruction Set Computing and CISC stands for Complex Instruction Set Computing.
RISC processors have a smaller set of simple instructions, while CISC processors have a larger set of complex instructions.
RISC processors typically execute instructions in one clock cycle, while CISC processors may require multiple clock cycles.
RISC processors rely on optimizing compilers for performance, while CISC...
Interpreter translates code line by line while compiler translates entire code at once.
Interpreter: translates code line by line, slower execution, easier debugging (e.g. Python)
Compiler: translates entire code at once, faster execution, harder debugging (e.g. C++)
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