10+ Mahindra & Mahindra Interview Questions and Answers

Reverse linked list in groups of k nodes

• Iterate through the linked list in groups of k nodes

• Reverse each group of k nodes using iterative or recursive approach

• Update the pointers accordingly to reverse the entire linked list in groups of k

Multiprocessing involves multiple processes running concurrently, while multithreading involves multiple threads within a single process.

• Multiprocessing uses multiple processes to execute tasks simultaneously.

• Multithreading uses multiple threads within a single process to achieve parallelism.

• Multiprocessing is more memory-intensive as each process has its own memory space.

• Multithreading is more lightweight as threads share the same memory space.

• Example: Running multiple insta...read more

C++ constructors can output messages to the console using cout or printf.

• Constructors can be used to initialize member variables and allocate memory.

• Outputting messages in constructors can be useful for debugging and logging.

• Example: class Person { public: Person() { cout << "Person object created."; } };

• Example: class Car { public: Car() { printf("Car object created.\n"); } };