View Compilation Error

0_0_28043294_13718.cpp: In function 'int main()':
0_0_28043294_13718.cpp:55:2: error: incomplete type 'std::ios_base' used in nested name specifier
  ios_base::sync_with_stdio(0);
  ^
0_0_28043294_13718.cpp:56:2: error: 'cin' was not declared in this scope
  cin.tie(0);
  ^
0_0_28043294_13718.cpp:57:2: error: 'cout' was not declared in this scope
  cout.tie(0);
  ^
0_0_28043294_13718.cpp:88:40: error: 'endl' was not declared in this scope
      cout << "Case #" << tc++ <<":" << endl;
                                        ^