Geometric C++ Developer interview questions

Round 1 : It had around 30 very easy C++ questions. [Easy] Round 2 : The interviewer was really friendly. He asked everything I had done in past 1.5yrs. The whole interview moved around the project I was working on and my roles and responsibilities in it. This was a kind of a stress interview. Interviewer also gave me a genuine feedback at the end. It lasted for around 40minutes [Medium] Round 3 : A link was shared for giving an aptitude test by the HR. It had 40 questions(55 mins) [Easy] Round 4 : This was a core technical round and interviews were trying to confuse me in every question. Questions asked - discussion on static keyword, static & dynamic polymorphism, steps of a compiler, makefile, what is linker error and a few more. [Difficult] Received the offer letter in Jan but I didn't join as the salary offered was not up to my expectations.