Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:27:15: error: no match for ‘operator&’ (operand types are ‘std::basic_ostream<char>’ and ‘int’) cout << l & c; ^ user.cpp:27:15: note: candidates are: In file included from /usr/include/c++/4.8/ios:42:0, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:2: /usr/include/c++/4.8/bits/ios_base.h:75:3: note: constexpr std::_Ios_Fmtflags std::operator&(std::_Ios_Fmtflags, std::_Ios_Fmtflags) operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b) ^ /usr/include/c++/4.8/bits/ios_base.h:75:3: note: no known conversion for argument 1 from ‘std::basic_ostream<char>’ to ‘std::_Ios_Fmtflags’ /usr/include/c++/4.8/bits/ios_base.h:115:3: note: constexpr std::_Ios_Openmode std::operator&(std::_Ios_Openmode, std::_Ios_Openmode) operator&(_Ios_Openmode __a, _Ios_Openmode __b) ^ /usr/include/c++/4.8/bits/ios_base.h:115:3: note: no known conversion for argument 1 from ‘std::basic_ostream<char>’ to ‘std::_Ios_Openmode’ /usr/include/c++/4.8/bits/ios_base.h:153:3: note: constexpr std::_Ios_Iostate std::operator&(std::_Ios_Iostate, std::_Ios_Iostate) operator&(_Ios_Iostate __a, _Ios_Iostate __b) ^ /usr/include/c++/4.8/bits/ios_base.h:153:3: note: no known conversion for argument 1 from ‘std::basic_ostream<char>’ to ‘std::_Ios_Iostate’ user.cpp:18:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tabela.in", "r", stdin); ^ user.cpp:19:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tabela.out", "w", stdout); ^