运行 ID: 29716

Main.cc:17:13: error: stray ‘\357’ in program
     return 0；
             ^
Main.cc:17:14: error: stray ‘\274’ in program
     return 0；
              ^
Main.cc:17:15: error: stray ‘\233’ in program
     return 0；
               ^
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:6:1: error: ‘cin’ was not declared in this scope
 cin >> n;
 ^~~
Main.cc:6:1: note: suggested alternative: ‘main’
 cin >> n;
 ^~~
 main
Main.cc:16:1: error: ‘cout’ was not declared in this scope
 cout << fixed << setprecision(4)
 ^~~~
Main.cc:16:9: error: ‘fixed’ was not declared in this scope
 cout << fixed << setprecision(4)
         ^~~~~
Main.cc:16:9: note: suggested alternative: ‘signed’
 cout << fixed << setprecision(4)
         ^~~~~
         signed
Main.cc:16:18: error: ‘setprecision’ was not declared in this scope
 cout << fixed << setprecision(4)
                  ^~~~~~~~~~~~