Intercontinental Exchange interview questions

Interview process took a month, it started of with a call from recruiter and then phone interview with an Engineer(basic questions about sql, java) and face to face interview which they say will be for 4 hours but it lasted 6 hours, rather than interview questions, the process is really exhausting and they make you sit in a room and people keep on coming one after another and ask questions on the fly, they won't provide you any lunch even though the interview extended beyond agreed time, No feedback after the interview. They mostly want to know if you are willing to work longer hours.

I was presented with the opportunity via a recruiting agency. Since I worked through a recruiter, they did not require a phone screen and had me come in for the final interview. There were 4 people from the RM team who interviewed me. One was the director who I would be reporting to, another was the manager of the team, and lastly, the other two were team members. I was first asked to speak about my previous position and what I did there. This took about 5 minutes. After this, I had to complete four problems on a whiteboard. I will list the three problems that I remember below in the Interview Questions section. After I finished answering the problems, I was asked a few more specific questions regarding the responsibilities I had from my previous job. The next day I heard back from the recruiter saying that the interview went well and that he had received positive feedback. Another day later I was presented with an offer which I ultimately accepted.