answer.code: In function ‘bool dfs(int, int, int)’:
answer.code:94:29: error: ‘ustawion’ was not declared in this scope; did you mean ‘ustawione’?
   94 |                         if (ustawion) return false;
      |                             ^~~~~~~~
      |                             ustawione
answer.code:101:19: error: invalid use of member function ‘std::vector<_Tp, _Alloc>::size_type std::vector<_Tp, _Alloc>::size() const [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >; size_type = long unsigned int]’ (did you forget the ‘()’ ?)
  101 |         if (wyzej.size == nizej.size()) return true;
      |             ~~~~~~^~~~
      |                       ()