Shapes

#include<iostream>
#include<cstring>
using namespace std;
 enum Color {RED, GREEN, BLUE};
class Shape
 {
 private:
 char id[5];
 double area;
 Color color;
 public:
 // Shape(){}
 Shape(char *id = "", Color color = RED, double area = 0.0)
{ this->area=area;
strcpy(this->id,id);
 this->color=color;
 }
 Shape(const Shape &s)
 {
 this->area=s.area;
strcpy(this->id,s.id);
 this->color=s.color;
}
double getArea() { return this->area; }
char *getId() { return this->id; }
 void setArea(double area) { this->area=area; }
 void setId(char *id) { strcpy(this->id,id); }
char * printColor ()
 {
if (color == RED) return "RED";
else if (color == GREEN) return "GREEN";
 else return "BLUE";
}
 void draw() {
 cout<<id<<" "<<printColor()<<" "<<area<<endl;
}
 void reduceArea ()
{ area/=2; }
friend class Canvas;
 };
 class Canvas
{
 private: Shape shape [100];
int n;
 public: Canvas()
{
this->n=0;
 }
 Canvas(const Canvas &c)
 {
 this->n=c.n;
for(int i = 0; i < n ; i++)
 {
 shape[i]=c.shape[i];
}
}
 void setN(int n) { this->n=n; }
 int getN() { return n; }
void addShape (Shape s)
{
shape[n] = s;
 n++;
 }
void drawAll()
{
for(int i = 0; i < n ; i++)
 { shape[i].draw();
}
}
void drawOnly(Color c)
 {
 for(int i = 0; i < n ; i++)
 {
if (shape[i].color == c)
 shape[i].draw();
}
}
 double totalArea()
 {
double sum = 0.0;
 for(int i = 0; i < n ; i++)
 {
sum += shape[i].area;
}
return sum;
}
Canvas getHalfCanvas()
 {
Canvas copy (*this);
 for (int i=0;i<copy.n;i++)
{
copy.shape[i].reduceArea();
 }
 return copy;
 }
 };
int main ()
{
 int n;
 cin>>n;
//cout<<n;
 cout<<"ADITION OF SHAPES IN THE CANVAS"<<endl;
 Canvas canvas;
 for (int i=0; i<n; i++)
 {
char id [5];
int color;
 double area;
 cin>>id>>color>>area;
 //cout<<id<<color<<area<<n<<endl;
 Shape s (id, (Color) color, area);
//s.draw();
 cout<<endl;
 canvas.addShape(s);
 //s.draw();
 }
 cout<<"TESTING DRAW ALL"<<endl;
canvas.drawAll();
 cout<<"TESTING DRAW RED SHAPES"<<endl;
 canvas.drawOnly(RED);
 cout<<"TESTING TOTAL AREA"<<endl;
 cout<<canvas.totalArea()<<endl;
cout<<"TESTING HALF CANVAS"<<endl;
Canvas reducedCanvas = canvas.getHalfCanvas();
 cout<<canvas.totalArea()<<" "<<reducedCanvas.totalArea()<<endl;
 if (reducedCanvas.totalArea() == canvas.totalArea())
 {
 cout<<"DO NOT CHANGE THE AREA OF THE OBJECT IN THE CURRENT CANVAS. JUST IN THE NEW CANVAS"<<endl;
}
 return 0;