OSIsoft Software Developer Intern interview questions

2 Rounds: Round 1: Basic behavioral questions (tell me about yourself, why are you interested in OSIsoft). Basic coding challenge (simple recursive method) Round 2: Interview with team manager; asked about conceptual difference between two programming languages

2 LC questions in 2 different interviews. The first one was LC medium, second was LC hard . The interviewers were all nice, but I'm confused why I didn't get an offer after completing all the questions correctly.