제출 #178301

실행 실패 (제출 코드 컴파일 에러)

Main.cpp: In function ‘int main()’:
Main.cpp:5:3: error: ‘ios’ has not been declared
    5 |   ios::sync_with_stdio(false);
      |   ^~~
Main.cpp:6:3: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
    6 |   cin.tie(NULL); cout.tie(NULL);
      |   ^~~
      |   std::cin
In file included from Main.cpp:1:
/usr/include/c++/11/iostream:60:18: note: ‘std::cin’ declared here
   60 |   extern istream cin;           /// Linked to standard input
      |                  ^~~
Main.cpp:6:18: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
    6 |   cin.tie(NULL); cout.tie(NULL);
      |                  ^~~~
      |                  std::cout
In file included from Main.cpp:1:
/usr/include/c++/11/iostream:61:18: note: ‘std::cout’ declared here
   61 |   extern ostream cout;          /// Linked to standard output
      |                  ^~~~
Main.cpp:8:3: error: ‘string’ was not declared in this scope
    8 |   string x; cin >> x;
      |   ^~~~~~
Main.cpp:8:3: note: suggested alternatives:
In file included from /usr/include/c++/11/iosfwd:39,
                 from /usr/include/c++/11/ios:38,
                 from /usr/include/c++/11/ostream:38,
                 from /usr/include/c++/11/iostream:39,
                 from Main.cpp:1:
/usr/include/c++/11/bits/stringfwd.h:79:33: note:   ‘std::string’
   79 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
In file included from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/ostream:38,
                 from /usr/include/c++/11/iostream:39,
                 from Main.cpp:1:
/usr/include/c++/11/string:67:11: note:   ‘std::pmr::string’
   67 |     using string    = basic_string<char>;
      |           ^~~~~~
Main.cpp:8:20: error: ‘x’ was not declared in this scope
    8 |   string x; cin >> x;
      |                    ^
Main.cpp:14:11: error: ‘endl’ was not declared in this scope; did you mean ‘std::endl’?
   14 |   cout << endl;
      |           ^~~~
      |           std::endl
In file included from /usr/include/c++/11/iostream:39,
                 from Main.cpp:1:
/usr/include/c++/11/ostream:684:5: note: ‘std::endl’ declared here
  684 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~