Eroare de compilare: user.cpp:25:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:7: error: redeclaration of 'int k' user.cpp:7: error: 'int k' previously declared here user.cpp:13: error: 'x' was not declared in this scope user.cpp:14: error: 'u' was not declared in this scope user.cpp:14: error: no match for 'operator=' in 'f = 2' /usr/include/c++/4.2/iosfwd:89: note: candidates are: std::basic_ifstream<char, std::char_traits<char> >& std::basic_ifstream<char, std::char_traits<char> >::operator=(const std::basic_ifstream<char, std::char_traits<char> >&) user.cpp:7: warning: unused variable 'j' user.cpp:25: error: expected `}' at end of input