About one month after the career fair, HR contacted me to schedule a phone interview. The person who interviewed me is a senior engineer at Yahoo. He did not ask about my projects but asked me two algorithm questions, both of which were very easy. It has been two weeks since the phone interview, and I am still waiting for the result.

Determine whether there is a loop in a linked list.

Find the head of the loop.

The questions were quite easy, and I figured out and wrote down the answers in 15 minutes. However, HR did not contact me after the interview.