I interviewed via a recruiting agency. They first set a talk to one hiring manager. Then I got another email asking for scheduling with a second hiring manager. When I asked if I needed to talk to both managers, I heard that it was an oversight. However, they cancelled the first and second hiring manager and set up a call with the third hiring manager.  However, they didn't change the meeting link erroneously, so I waited for a while to talk to someone. I contacted the recruiting agency but didn't hear back. Finally the 3rd hiring manager sent me an email and said whether I am still available.  I joined the new meeting link that she provided. This interview was more in the form of a chat.

After the chat with the hiring manager, they sent me to the tech screen round. In the tech screen, they first started with an introduction and informed me that I will have to solve 2 programming challenges within 45 to 50 mins so that I get time at the end for asking questions. I solved both, for the first problem interviewer asked if I can optimize it. I was under time pressure as I knew I had to solve a second problem. I tried but couldn't see a way to optimize.

Anyway, after the interview I didn't hear back anything from them for 2 weeks. When I reached out to the recruiting agency they said, I didn't pass the tech screen. This company must be the next Google as they expect their candidate to provide optimal solutions for 2 problems in 45 to 50 mins.

Well the fun part is 1 week later, the recruiter from this company reached out to me saying how I have all the relevant experience blah blah. This guy is repeatedly sending me emails. I didn't bother to reply to a recruiter of a company who cannot track whether they have approached and interviewed a candidate.

1. Encoding and decoding strings

2. LinkedList