Run id: 120548

Main.cc:1:1: error: stray '\' in program
 / cin\cout\endl
 ^
Main.cc:1:1: error: stray '\' in program
Main.cc:1:1: error: expected unqualified-id before '/' token
In file included from /usr/include/c++/5/cmath:43:0,
                 from Main.cc:5:
/usr/include/c++/5/ext/type_traits.h:160:35: error: '__gnu_cxx::__is_null_pointer' declared as an 'inline' variable
   __is_null_pointer(std::nullptr_t)
                                   ^
/usr/include/c++/5/ext/type_traits.h:160:35: error: 'bool __gnu_cxx::__is_null_pointer' redeclared as different kind of symbol
/usr/include/c++/5/ext/type_traits.h:155:5: note: previous declaration 'template bool __gnu_cxx::__is_null_pointer(_Type)'
     __is_null_pointer(_Type)
     ^
/usr/include/c++/5/ext/type_traits.h:160:21: error: 'nullptr_t' is not a member of 'std'
   __is_null_pointer(std::nullptr_t)
                     ^
Main.cc: In function 'int main()':
Main.cc:9:5: error: 'cin' was not declared in this scope
     cin>>a;
     ^
Main.cc:13:18: error: 'cout' was not declared in this scope
          case 10:cout<<"A";break;
                  ^
Main.cc:8:11: warning: unused variable 'b' [-Wunused-variable]
     int a,b;
           ^