C3 AI Software Engineer - Early Professional Interview interview questions

1) Hackerrank 3 problems, given 2 hours, 1 easy, 1 medium, and 1 hard. 2) 45 minute video interview, given medium/hard question 3) 3, 45 minute interviews with 15 minute breaks in between. First: Easy problem but try to eventually find most optimal solution. Second: Questions on previous work, experience, and etc. Also had to solve a hard problem but not much time is left (30 minutes or so). Third: design and implement an object oriented problem with certain specifications. One of the interviewers had poor internet connection causing communication to be very horrendous. Though I don't think this is reflective of most interviews. I haven't heard back in 2 weeks so I assumed I got ghosted / waiting for rejection email.