text: #pragma once
  #include <vector>
  #include <iostream>
  using namespace std;
  
  class VectorPrinter
  {
  public:
  	VectorPrinter(){}
  
  	template<typename T>
  	void print(vector<T>& vec)
  	{
  		for (auto it : vec)
  			cout << it << ",";
  		cout << endl;
  	}
  
  	void print(vector<vector<int>> vec)
  	{
  		for (vector<vector<int>>::iterator it = vec.begin(); it != vec.end(); ++it)
  		{
  			for (vector<int>::iterator i = it->begin(); i != it->end(); ++i)
  				cout << *i << ",";
  			cout << endl;
  		}
  	}
  
  };
  
  