Yelp Associate Product Manager interview questions

It began with a phone screen with the recruiter which lasted about 45 minutes. She asked me questions about my background (academic and professional) and why I wanted to work at Yelp. I was asked about why I wanted to be a PM as well. Then she asked me a series of technical questions testing my computer science knowledge. This interview was followed by a Skype interview with a Product Manager who asked me some to do a coding question using CoderPad I think (or some similar platform), and then asked me some specific product question. Following this interview, I had a phone interview with another product manager who asked me very specific product questions relating to his domain, and after this I was rejected by email. The process wasn't very transparent and I didn't hear back from time to time or know where I stood in the process as it progressed.

Had a phone screen with recruiter. She called me 15 minutes earlier than allotted time. I had expected it to be a casual chat about my experience, etc. Instead she asked me questions like runtime efficiency of a sorted binary search tree, what happens when you type a URL in the web browser, etc. I was caught off guard. She also asked me some standard product questions (what do you love best about Yelp? etc.)