text: #pragma once
  #include <iostream>
  #include <fstream>
  #include<string>
  #include <vector>
  #include"Map.h"
  #include"City.h"
  
  class FileIO {
  private:
  	Map * graph;
  	std::vector<City> city;
  
  public:
  	FileIO();
  	Map* loadMap();
  	Map* getMap();
  
  };