Me and my class mates opted for Computer science C++in 11th grade, but after a few weeks we started to face difficulties in the subject.Anyways we passed 11 with many difficulties. But now we are in 12 grade and we want to change the subject as it will affect our final results. We are studying in a CBSE affiliated school in Jeddah,Saudi arabia. So I would like to know if we can change the subject in class 12 ?