text: #pragma once
  
  #include <QWidget>
  #include <opencv2/highgui/highgui.hpp>
  #include <opencv2/imgproc/imgproc.hpp>
  #include <opencv2/core/core.hpp>
  #include <vector>
  
  using namespace std;
  
  class domain
  {
  public:
  	domain();
  	~domain();
  
  private:
  	vector<vector<int>> A;
  };
  
  