Eroare de compilare: user.cpp:32:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:14: error: 'f' was not declared in this scope user.cpp:14: error: 'n' was not declared in this scope user.cpp:14: error: 'x' was not declared in this scope user.cpp:19: error: 'nr' was not declared in this scope user.cpp:19: error: 'co' was not declared in this scope user.cpp:28: error: 'class std::stack<int, std::deque<int, std::allocator<int> > >' has no member named 'front' user.cpp:29: error: 'class std::stack<int, std::deque<int, std::allocator<int> > >' has no member named 'pop_front' user.cpp:29: error: expected `;' before ')' token