Apple Software Developer interview questions

I had the final round interview for a whole day, very tech-oriented and difficult, It was very hard to prepare since different group have different processes, but still a very great learning experience especially for a new grad.

phone interview with the manager. He gave me a problem to solve. the interview process for a software engineer at Apple takes 1-2 months. The onsite interview lasts 5 hours and comprises of around 5 rounds with each team, each consisting of 4 technical interviews and a lunch interview.