The interview process consisted of 3 phone screens and then a full day of in-person interviews in Cupertino.

The whole process was very organized, and the interviewers were professional, polite, and well-prepared. I could tell that Apple has specific procedures and formats for interviews because of the similarities in dialogue and the way interviews were conducted with different interviewers.

All of the technical coding questions followed the same general format. First, I was given a problem to solve and asked to write a short program or function to solve it. After, I was asked to demonstrate how the program works by using a specific example given by the interviewer. Finally, I was asked about the complexity of my solution. In many cases, I was given an opportunity to come up with another solution that would be more efficient than the original.

One more thing to note is that it is very important to have an accurate resume. This may seem obvious, but you will be asked questions based on the skills listed on your resume.

In C, write your own implementation of the atoi() function.