ACM476: Points in Figures: Rectangles

#include   
#include 
#include 
using namespace std; 
class Point
{
      public:
             Point(float xx,float yy):x(xx) , y(yy){};
             float x,y;
             
}; 
class Rectangle
{
      public:
             Point point1,point2;
             Rectangle(float x1,float y1,float x2,float y2):point1(x1,y1),point2(x2,y2){};
      bool IsIn(Point point)
      {
           return point.x > point1.x && point.x < point2.x && point.y < point1.y && point.y > point2.y;
      }
};
class ACM476
{
      public:
             vector rectangles;
             vector points;
};
int main(int argc, char *argv[])  
{  
   ACM476 acm476;
    while(true)  
    {       
        string input;
        getline(cin,input);
        istringstream ss;
        ss.str(input);
        string cmd;
        float x1,y1,x2,y2;
        ss >> cmd;         
        if(cmd=="*")
        {                     
            break;
        }
        switch(cmd[0])
        {
            case 'r':
                 ss >> x1;ss >> y1;ss >> x2;ss >> y2;
                 acm476.rectangles.push_back(Rectangle(x1,y1,x2,y2));
                 break;
        }
    }  
     while(true)  
    {  
        string input;
        getline(cin,input);
        istringstream ss;
        ss.str(input);
        float x,y;
        ss >> x;
        ss >> y;
        if(x==9999.9f && y==9999.9f)
        {   
            break;
        }
        acm476.points.push_back(Point(x,y));
    }  
    for(vector::size_type ip =0;ip != acm476.points.size();++ip)
    {
         bool flag=false;
         for(vector::size_type ir =0; ir != acm476.rectangles.size();++ir)
         {
             if(acm476.rectangles[ir].IsIn(acm476.points[ip]))
             {
                  cout << "Point " << ip+1 << " is contained in figure " << ir+1 << endl;
                  flag=true;
             }
         }
         if(!flag)
         {
                 cout << "Point " << ip+1 <<" is not contained in any figure" << endl;                                                  
         }
         
    }
}