运行 ID: 128719

Main.cc:1:9: error: #include expects "FILENAME" or 
 #include
         ^
Main.cc: In function ‘int main()’:
Main.cc:15:1: error: ‘cin’ was not declared in this scope
 cin >> a >> b;
 ^~~
Main.cc:15:1: note: suggested alternative: ‘main’
 cin >> a >> b;
 ^~~
 main
Main.cc:17:1: error: ‘cout’ was not declared in this scope
 cout << qsq(a, b) <<" ";
 ^~~~
Main.cc:18:14: error: ‘endl’ was not declared in this scope
 cout << x << endl;
              ^~~~
Main.cc:18:14: note: suggested alternative: ‘enum’
 cout << x << endl;
              ^~~~
              enum