Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:15:7: error: ambiguous overload for ‘operator>>’ (operand types are ‘std::fstream {aka std::basic_fstream<char>}’ and ‘int’) fout>>0<<endl; ^ user.cpp:15:7: note: candidates are: In file included from /usr/local/include/c++/4.8.0/fstream:38:0, from user.cpp:1: /usr/local/include/c++/4.8.0/istream:120:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] operator>>(__istream_type& (*__pf)(__istream_type&)) ^ /usr/local/include/c++/4.8.0/istream:124:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<char>] operator>>(__ios_type& (*__pf)(__ios_type&)) ^ /usr/local/include/c++/4.8.0/istream:131:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] operator>>(ios_base& (*__pf)(ios_base&)) ^ /usr/local/include/c++/4.8.0/istream:259:7: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>] operator>>(__streambuf_type* __sb); ^ /usr/local/include/c++/4.8.0/istream:774:5: note: std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*) [with _Traits = std::char_traits<char>] operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s) ^ /usr/local/include/c++/4.8.0/istream:779:5: note: std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*) [with _Traits = std::char_traits<char>] operator>>(basic_istream<char, _Traits>& __in, signed char* __s) ^