Eroare de compilare: user.cpp:7:6: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _Key, class _Compare, class _Alloc> class std::set’ set<N> A; ^ user.cpp:7:6: error: expected a type, got ‘N’ user.cpp:7:6: error: template argument 2 is invalid user.cpp:7:6: error: template argument 3 is invalid user.cpp:7:9: error: invalid type in declaration before ‘;’ token set<N> A; ^ user.cpp: In function ‘int main()’: user.cpp:21:6: error: request for member ‘insert’ in ‘A’, which is of non-class type ‘int’ A.insert(x); ^ user.cpp:25:6: error: request for member ‘erase’ in ‘A’, which is of non-class type ‘int’ A.erase(x); ^ user.cpp:29:21: error: request for member ‘find’ in ‘A’, which is of non-class type ‘int’ printf("%d\n", A.find(x) != A.end()); ^ user.cpp:29:34: error: request for member ‘end’ in ‘A’, which is of non-class type ‘int’ printf("%d\n", A.find(x) != A.end()); ^