Brainlabs Graduate Software Developer interview questions

A few weeks after sending out my application, I was sent some kind of IQ-ish test. After completing it, I had a short video chat with an employee (read through the manual), followed by a quick maths test (study up on basic trig and circles) and a one-minute presentation on a topic of my choice. I was then asked to come to the office for the final step, a three-hour interview divided into three hour-long tasks. These were (1) a series of questions to assess how well you would fit at Brainlabs, (2) a simple programming assignment in Python, and (3) a more challenging algorithm question involving sorting and searching data

Two rounds of interviews. First round included a HR interview with a logic test and language test with a non assessed personality quiz. Lunch was provided with all the staff. Second round included a coding exercise and technical interview. HR interviews were friendly and helpful. CTO was uninterested and kept getting distracted throughout the interview.