foo.cc:2:7: error: expected nested-name-specifier before 'naemspace'
 using naemspace std;
       ^~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:5:5: error: 'cout' was not declared in this scope
     cout<<"IN WAR, EVENTS OF IMPORTANCE ARE THE RESULT OF TRIVIAL CAUSES"<<endl;
     ^~~~
foo.cc:5:5: note: suggested alternative:
In file included from foo.cc:1:0:
/usr/include/c++/7/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^~~~
foo.cc:5:76: error: 'endl' was not declared in this scope
     cout<<"IN WAR, EVENTS OF IMPORTANCE ARE THE RESULT OF TRIVIAL CAUSES"<<endl;
                                                                            ^~~~
foo.cc:5:76: note: suggested alternative:
In file included from /usr/include/c++/7/iostream:39:0,
                 from foo.cc:1:
/usr/include/c++/7/ostream:590:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^~~~

正在同步测试数据，请稍后
自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。