Safran Intern interview questions

Started with Introduction Tell me about your self and mostly questions are on project mention in resume to describe them and then next part is technical one which is regarding programming in C and at last a puzzle is asked to solve

The interview was relatively straightforward, I came to the plant 1 hour before the planned interview (the plant is in the middle of nowhere so plan accordingly and do not forget your passport as you might not be allowed to enter if they cannot verify your identity and citizenship). I then was invited to wait in the area dedicated to this purpose, which I did for one hour.It was very nice, with coffee and biscuits and every thing. The interviewer then came and we went to a meeting room. I was then interviewed for one hour, and another interviewer then came and I was again interviewed for another hour (2 hours total).