Main.cc: In function 'int main()':
Main.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin >> t;
      |     ^~~
Main.cc:8:13: error: 'cout' was not declared in this scope
    8 |             cout << "Yes
";
      |             ^~~~
Main.cc:11:13: error: 'cout' was not declared in this scope
   11 |             cout << "No
";
      |             ^~~~