Eroare de compilare: user.cpp:7: error: expected unqualified-id before ‘{’ token user.cpp:10: error: expected constructor, destructor, or type conversion before ‘;’ token user.cpp:13: error: ISO C++ forbids declaration of ‘element’ with no type user.cpp:13: error: expected ‘,’ or ‘...’ before ‘&’ token user.cpp:13: error: ‘bool operator<(int)’ must have an argument of class or enumerated type user.cpp: In function ‘int main()’: user.cpp:37: error: ‘v’ was not declared in this scope user.cpp:47: error: ‘v’ was not declared in this scope