X Software Engineer(Internship) interview questions

Got an interview through Grace Hopper Conference. First round included one technical interview. Afterwards I had another round of one technical interview with the members of my team and one behavioral interview with the manager.

It was 4 question to to solve in about 60 minutes ranged 1 easy and 3 medium, I managed to solve them in 40 mins 1 question prefix Sum, 1 implementation, 1 greedy, 1 graph dfs or bfs