Optima Design Automation interview questions

I was interviewed by the RnD manager, He was super polite but super pokerface, straight forward and professional. The interview started with light personal introductions,then he introduced what the company does,then we discussed my previous work and projects,he had my CV Mapped Out so come prepared yo explain each line you wrote. Then he told me that if the interview goes well its going to be long(this was a special case where the hiring process only included one interview therefore it had to be longer). Then i was asked about linkedin lists,arrays,hashmaps.... The technical section was mostly leetcode easy and medium questions that increasingly got harder and hearder.