Bloomberg Software Engineer interview questions

Attempted first round interview with engineering entry-level recruitment team. Duration of interview was 1 hour. Interview was conducted on HackerRank platform. Interviewer helped in the process of coming up with the solution.

Got the interview through Bloomberg's official career website. Passed the recruiter interview, failed at the coding interview. 2 LC medium questions. First one was Validate BST and the second one was build queues using stacks. First one did it effectively, second one couldn't complete which is why I failed I presume.