PenLift1.cxx

int PenLift::numTimes(vector<string> segments, int n) 
{
  transform(segments.begin(), segments.end(),
             back_inserter(m_inLines), PenLift::getLine);
  mergeLines();    
  intersectLines();
  createGraph();
  vector< Graph<Point> > g = m_graph.getConnectedGraphs();
  if(n % 2 == 0)
    return (g.size() - 1);
  int rValue =0;
  for( vector< Graph<Point> >::iterator it = g.begin() ;
         it != g.end(); ++it)
    {
      int odd = it->numOddVertices()/2;
      rValue +=  odd > 0 ? odd:1;
    }
  return rValue - 1;
}