10+ GEETANJALI HOMESTATE Interview Questions and Answers

Reverse every alternate K nodes in a singly linked list of integers.

• Traverse the linked list in groups of K nodes and reverse every alternate group.

• Handle cases where the number of remaining nodes is less than K.

• Ensure to properly link the reversed groups to maintain the integrity of the linked list.

I need to improve my time management skills.

• Prioritize tasks based on urgency and importance

• Set realistic deadlines and stick to them

• Avoid multitasking and focus on one task at a time

• Use tools like calendars and to-do lists to stay organized

C program to reverse a string in-place

• Use two pointers, one at the beginning and one at the end of the string

• Swap the characters at the two pointers and move the pointers towards each other until they meet

• Handle odd-length strings by leaving the middle character in place

Storage classes in C define the scope and lifetime of variables.

• There are four storage classes in C: auto, register, static, and extern.

• Auto variables are local to a block and have automatic storage duration.

• Register variables are stored in CPU registers for faster access.

• Static variables have a lifetime throughout the program and are initialized only once.

• Extern variables are declared outside any function and can be accessed by any function in the program.

Use jigsaw puzzle approach to reconstruct the paper.

• Sort the pieces by edges and corners.

• Identify patterns and colors to match adjacent pieces.

• Use trial and error method to fit the pieces together.

• Check for completeness and accuracy of the final paper.

• Use computer vision and machine learning algorithms for automation.

++x is faster than x++ because it increments the value before using it.

• ++x increments the value before using it, while x++ increments the value after using it.

• ++x is faster because it saves the overhead of creating a temporary variable.

• In some cases, the difference in speed may be negligible and the choice between the two may depend on readability and coding standards.

Program to insert a node in linked list

• Create a new node with the given data

• Set the next pointer of the new node to the next pointer of the previous node

• Set the next pointer of the previous node to the new node

Program to find loop in linked list

• Use two pointers, slow and fast, to traverse the linked list

• If there is a loop, the fast pointer will eventually catch up to the slow pointer

• To find the start of the loop, reset the slow pointer to the head and move both pointers at the same pace

A null object is an object that does not have a value or reference to any object.

• A null object is different from an object with a value of zero or an empty string.

• It is often used to represent the absence of an object or value.

• Null objects can be used to avoid null pointer exceptions in programming.

• It is a conceptual idea in programming and computer science.

Which software are you referring to?

• Please specify the software you are asking about

• Without context, it is impossible to answer this question

Virtual functions are functions that can be overridden by derived classes.

• Virtual functions are declared in a base class and can be overridden in a derived class.

• They allow for polymorphism, where a derived class can be treated as its base class.

• Virtual functions are called based on the actual object type, not the pointer or reference type.

• They are declared using the 'virtual' keyword in the base class and optionally overridden using the 'override' keyword in the derived clas...read more

A solution for solving the Rubik's cube

• Use the layer-by-layer method

• Solve the first layer cross

• Solve the first layer corners

• Solve the second layer

• Solve the third layer cross

• Solve the third layer corners

• Orient the third layer corners

• Permute the third layer corners

• Permute the third layer edges

C++ is a high-level programming language used for developing system software, application software, device drivers, and video games.

• C++ was developed by Bjarne Stroustrup in 1983.

• It is an extension of the C programming language.

• C++ supports object-oriented programming, generic programming, and low-level memory manipulation.

• It is widely used in industries such as finance, gaming, and operating systems development.

• Examples of popular software written in C++ include Microsoft Wi...read more

OOP stands for Object-Oriented Programming, a programming paradigm that focuses on objects and their interactions.

• OOP is based on the concepts of encapsulation, inheritance, and polymorphism.

• It allows for modular and reusable code.

• Examples of OOP languages include Java, C++, and Python.

Late binding is a programming concept where the method or function to be executed is determined at runtime.

• Also known as dynamic binding or runtime binding

• Allows for greater flexibility in code execution

• Commonly used in object-oriented programming languages

• Example: virtual functions in C++

Spark architecture is a distributed computing system that provides high-level APIs for big data processing.

• Spark architecture consists of a cluster manager, a distributed storage system, and a computing engine.

• Data in Spark is represented as Resilient Distributed Datasets (RDDs) or DataFrames.

• Spark supports various data models, including batch processing, streaming, machine learning, and graph processing.

• Spark's architecture allows for in-memory data processing, which improve...read more

Quick sort is a divide and conquer algorithm that sorts an array by partitioning it into two sub-arrays.

• Choose a pivot element from the array

• Partition the array around the pivot element

• Recursively apply the above steps to the sub-arrays

• Combine the sorted sub-arrays to get the final sorted array