/in/foo.cc:9:34: error: stray '\303' in program
   cout<<fixed<<setprecision(4)<<a×9/5＋32;
                                  ^
/in/foo.cc:9:35: error: stray '\227' in program
   cout<<fixed<<setprecision(4)<<a×9/5＋32;
                                   ^
/in/foo.cc:9:39: error: stray '\357' in program
   cout<<fixed<<setprecision(4)<<a×9/5＋32;
                                       ^
/in/foo.cc:9:40: error: stray '\274' in program
   cout<<fixed<<setprecision(4)<<a×9/5＋32;
                                        ^
/in/foo.cc:9:41: error: stray '\213' in program
   cout<<fixed<<setprecision(4)<<a×9/5＋32;
                                         ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:9:36: error: expected ';' before numeric constant
   cout<<fixed<<setprecision(4)<<a×9/5＋32;
                                    ^
/in/foo.cc:7:9: warning: unused variable 'b' [-Wunused-variable]
   float b=0;
         ^