void findPath(imdb& db, string source, string target){
  list<path> paths;
  set<string> actors;
  set<film> films;
  path start(source);
  paths.push_back(start);
  while(!paths.empty() && paths.front().getLength()<=5){
    path connect=paths.front();
    paths.pop_front();
    vector<film>movies;
    db.getCredits(connect.getLastPlayer(),movies);
    for(int i=0; i < (int)movies.size(); i++){
      if(films.find(movies[i])==films.end()){
	films.insert(movies[i]);
	vector<string>cast;
	db.getCast(movies[i],cast);
	for(int j=0; j < (int)cast.size(); j++){
	  if(actors.find(cast[j])==actors.end()){
	      actors.insert(cast[j]);
	      path clone=connect;
	      connect.addConnection(movies[i], cast[j]);
	      if(clone.getLastPlayer()==target){
		cout << clone << endl;
		return;
	      }
	      paths.push_back(clone);
	  }
	}
      }
    }
  }
  cout << endl << "No path between those two people could be found." << endl << endl;
}