Eroare de compilare: user.cpp:3: error: expected constructor, destructor, or type conversion before ‘<’ token user.cpp: In function ‘int main()’: user.cpp:18: error: ‘v’ was not declared in this scope user.cpp:22: error: ‘v’ was not declared in this scope user.cpp:25: error: ‘v’ was not declared in this scope user.cpp:29: error: ‘v’ was not declared in this scope