One of the most unprofessional interviews I have ever been in.

I interviewed with three teams at Apple and cleared the technical phone screen with all of them. However, when I spoke to the hiring managers on the next call for each team, I started to wonder if I really wanted to work there.

Each hiring manager was very rude and the furthest thing from humble. They interrupted me regularly and mocked me about my age (I have four years of work experience, but I'm 25).

To add insult to injury, they all boasted about how their teams were building the next biggest thing (Maps, iTunes, Core).

I went to the on-site interviews and cleared all four rounds, but I never felt so uneasy interviewing.

TLDR; I received an offer but declined it because each of the hiring managers were complete jerks, even though those in the teams were really nice.

Find the Least Common Ancestor of two nodes in a tree.