6. Why the following code does not compile? what is the solution? Note: The notation o is used for template classes. You will learn about this in future chapters 1. #include 2. #include 4. namespace coen79 ( 6 template class list private: int array[20]; 9 10 12. using namespace std; 13. using namespace coen79; 14 15. int main(int argc, const char*argv]) 16 17 18. 19 20 21 using namespace std; list v2; return 0