Eroare de compilare: main.cpp: In function 'int main()': main.cpp:18:10: warning: statement has no effect [-Wunused-value] a!=b; ~^~~ main.cpp:21:25: error: no match for 'operator=' (operand types are 'std::basic_ostream<char>' and 'int') fout << a=a-b; ^ In file included from /usr/include/c++/6/iostream:39:0, from main.cpp:1: /usr/include/c++/6/ostream:402:7: note: candidate: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator=(std::basic_ostream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits<char>] operator=(basic_ostream&& __rhs) ^~~~~~~~ /usr/include/c++/6/ostream:402:7: note: no known conversion for argument 1 from 'int' to 'std::basic_ostream<char>&&' main.cpp:24:23: error: no match for 'operator=' (operand types are 'std::basic_ostream<char>' and 'int') fout<< b=b-a; ^ In file included from /usr/include/c++/6/iostream:39:0, from main.cpp:1: /usr/include/c++/6/ostream:402:7: note: candidate: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator=(std::basic_ostream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits<char>] operator=(basic_ostream&& __rhs) ^~~~~~~~ /usr/include/c++/6/ostream:402:7: note: no known conversion for argument 1 from 'int' to 'std::basic_ostream<char>&&' Non zero exit status: 1