Applied for SWE intern position. Got two Hackerrank invitations 120min & 300min (decided to do the second one, thinking first one maybe a mistake). Second one was pure machine learning and questions geared towards self-driving cars(tire rotations, angles, max velocity, etc ); probably for machine learning engineer position. I attempted what I could, but realized it was beyond my knowledge, for now. Got a rejection day after. Several days later I received a message that I still had 3 days to finish my 120min assignment and finished it right away. Haven't heard back since.