Two Sigma interview questions

Standard medium difficulty hackerrank. The question involved decoded an encoded string. It was not something I had seen on LeetCode before and I think was unique to the company. The question was not that difficult but I ran out of time right before I could finish answering.

Applied online and received the online assessment about two weeks later. After that, I was invited to the first-round interview focused on data analysis. I reached the final stage, which consisted of three rounds, but did not pass.