运行 ID: 20798

Main.cc:3:1: error: ‘usning’ does not name a type; did you mean ‘uint’?
 usning namespace std;
 ^~~~~~
 uint
Main.cc: In function ‘int main()’:
Main.cc:6:4: error: ‘cin’ was not declared in this scope
    cin>>n;
    ^~~
Main.cc:6:4: note: suggested alternative:
In file included from Main.cc:1:0:
/usr/include/c++/7/iostream:60:18: note:   ‘std::cin’
   extern istream cin;  /// Linked to standard input
                  ^~~
Main.cc:11:6: error: ‘cout’ was not declared in this scope
      cout<<" ";
      ^~~~
Main.cc:11:6: note: suggested alternative:
In file included from Main.cc:1:0:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:15:6: error: ‘cout’ was not declared in this scope
      cout<<"*";
      ^~~~
Main.cc:15:6: note: suggested alternative:
In file included from Main.cc:1:0:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:17:5: error: ‘cout’ was not declared in this scope
     cout<& __os)
     ^~~~
Main.cc:19:2: error: ‘rsturn’ was not declared in this scope
  rsturn 0;
  ^~~~~~
Main.cc:19:2: note: suggested alternative: ‘stdin’
  rsturn 0;
  ^~~~~~
  stdin