Main.cc:1:2: error: invalid preprocessing directive #incude #incude ^ Main.cc: In function 'int main()': Main.cc:5:10: error: 'cin' is not a member of 'std' std::cin>>n>>x>>y; ^ Main.cc:6:10: error: 'cout' is not a member of 'std' std::cout<(n-y/x); ^