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Coding on paper😂😂 and checked and they said it was right and i come home and find that was wrong😂😂😂
I appeared for an interview before Feb 2024.
There were two coding questions; one was related to linked lists, and the other was linked to binary trees.
Developed a web application for tracking inventory and sales data
Used React for front-end development
Implemented RESTful APIs using Node.js and Express for back-end
Utilized MongoDB for database management
Integrated authentication and authorization features for secure access
Implemented data visualization using Chart.js
Reversing a linked list involves changing the direction of pointers to go from the end to the beginning.
Start by initializing three pointers: current, previous, and next.
Iterate through the linked list, updating the pointers to reverse the direction of the links.
Update the head of the linked list to point to the new first node, which was the original last node.
Program to find perfect squares between two numbers
Iterate through numbers between the given range
Check if the square root of the number is an integer
If yes, then it is a perfect square
Smart pointers in C++ are objects that act like pointers but provide automatic memory management.
Smart pointers help prevent memory leaks by automatically managing memory allocation and deallocation.
Examples include unique_ptr, shared_ptr, and weak_ptr.
unique_ptr is used for exclusive ownership, shared_ptr for shared ownership, and weak_ptr to prevent circular references.
Mutual exclusion is a concept in concurrent programming where only one thread can access a shared resource at a time.
Ensures that only one thread can access a critical section of code at a time
Prevents race conditions and data corruption
Commonly implemented using locks, semaphores, or mutexes
Example: Using a mutex to protect a shared variable in a multi-threaded application
Implementing multithreading involves creating and managing multiple threads to execute tasks concurrently.
Identify the tasks that can be executed concurrently
Create and manage multiple threads to execute these tasks simultaneously
Use synchronization techniques like locks and semaphores to prevent race conditions
Handle communication and coordination between threads
Consider thread safety and resource sharing issues
I appeared for an interview in Aug 2023.
180 mins test calculatogn
The struct keyword is used in programming languages to define a user-defined data type that contains multiple variables of different types.
Structs are used to group related data together.
They can have different types of variables, including other structs.
Structs can be used to create complex data structures.
They are commonly used in object-oriented programming languages.
The class keyword is used in object-oriented programming to define a blueprint for creating objects.
The class keyword is used in languages like Java, C++, and Python.
It allows the programmer to define the properties and behaviors of an object.
Objects created from a class are called instances.
Classes can have attributes (variables) and methods (functions).
Inheritance allows classes to inherit properties and behaviors fr...
I applied via Campus Placement and was interviewed in Sep 2022. There were 3 interview rounds.
Coding on python programming, any language is used in in coding.
Python provides a simple way to reverse a string using slicing.
Use slicing to reverse the string: string[::-1]
Assign the reversed string to a new variable or print it directly
Alternatively, use the reversed() function to create a reversed iterator and join it back into a string
posted on 13 Sep 2024
Asked some medium level SQL questions
Different question were asked on sql python java
I applied via Campus Placement and was interviewed before Jan 2022. There were 4 interview rounds.
It was a time constraint exam with easy to hard questions in the questionnaire. There were multiple choice questions from English, Aptitude, Basic technical questions.
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
70 Technical and Aptitude mcqs to solve in 50 minutes
Overloading is having multiple methods with the same name but different parameters. Overriding is implementing a method in a subclass that is already defined in the parent class.
Overloading allows a class to have multiple methods with the same name but different parameters.
Overriding occurs when a subclass provides a specific implementation of a method that is already provided by its parent class.
Overloading is resolve...
Primary key uniquely identifies a record in a table, while unique key ensures all values in a column are distinct.
Primary key does not allow NULL values, while unique key allows one NULL value.
A table can have only one primary key, but multiple unique keys.
Primary key is a combination of unique and not null constraints.
Primary key is used to establish relationships between tables, while unique key is used to enforce un
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