运行 ID: 4973

Main.cc:1:1: error: ‘include’ does not name a type; did you mean ‘__has_include’?
 include
 ^~~~~~~
 __has_include
Main.cc: In function ‘int main()’:
Main.cc:4:3: error: ‘n’ was not declared in this scope
   n;
   ^
Main.cc:5:2: error: ‘cin’ was not declared in this scope
  cin>>n;
  ^~~
Main.cc:5:2: note: suggested alternative: ‘main’
  cin>>n;
  ^~~
  main
Main.cc:6:2: error: ‘cout’ was not declared in this scope
  cout<