Citi Summer Technology Analyst interview questions

It was a phone interview. The interviewer asked about my resume, past projects that I have done, what am I currently doing right now, and a little than over half of the interview was data structures and algorithms questions.

first round recruiter call, second round spoke to tech worker, third round case, behavioural, and technical interview back to back in person. I spoke to three different employees, all working in the field that I was interviewing for.