The interview consisted of an initial phone screen and a final round.

The phone screen asked an easy/medium C question.

The final round comprised six technical interviews, each 45 minutes long, conducted back-to-back with a one-hour break for lunch.

Some technical interviews required responses in C, while others allowed any programming language.

Interviews included LeetCode-style algorithm questions, C-specific questions, and general C knowledge questions.

The last round of the day was an interview with the hiring manager, which involved reviewing the resume and asking some C knowledge questions.

Stamina is very important for this interview, as it lasts a whole day (approximately 7 hours).

Design an algorithm to check if two words are anagrams.

What is the difference between threads and processes in a technical sense?

We have a deck of cards in hand. Take the top card off the deck and place it onto a table. Then, place the next top card onto the bottom of the deck. Repeat this process until the deck in hand is empty. Take the deck from the table and place it into hand. This is called one round.

How many rounds does it take for the deck to return to its original order? Design a class in C++ to model and solve this problem.

Explain the static and volatile keywords.

What is the difference between a struct and a union? Calculate the memory an example struct would take, and the size if it were a union instead.

Design an algorithm to find the maximum sum of non-adjacent elements in an array.