Dassault Systèmes Full Stack Developer interview questions

A recruiter got my profile through Naukri and mailed me for interview on Saturday. In mail clearly they mentioned that only written test would be conducted on Saturday. But after the test they asked us to wait saying f2f would also be conducted the same day. Written test went on for around 2 hours. It had 3 sections 1 general intelligence which will have logical analytical questions and very few verbal. 2nd is technical aptitude which is not technical but completely quants. And very difficult questions. 3rd is the actual technical section wherein you will have 3 coding questions and some mcq on java and js. 1st section has 40 questions with 0.25 negative marking. 2nd one 20 questions with 0.5 negative marking. Although I didn't do much well in apti i was shortlisted for the 2nd round. It lasted only for 15 mins. Interviewer asked java questions and project related. And will ask reasons for the answers on 1st written test. And 2 coding questions out of which I solved one. Then I was said based on your feedback on written test these are only the set of questions I have for you and for today you can leave he said. Then I got a mail that I didn't clear that. As per my experience no one gets rejected in f2f round if 1 question is not answered as I answered all java related questions. if I were to be rejected for written test feedback they should not have shortlisted me for 2nd round. Waste of time.