motion of saturn n jupitor around sun!!

#include
#include
#include
#include
#define pi 3.14285
#define round(a)((int)(a+0.5))
int i;
void drawellipse(int xc,int yc,int a,int b)
{ float x,y;int i;
for(i=0;i<360;i++)
{ x=xc+a*cos(i*pi/180);
y=yc+b*sin(i*pi/180);
putpixel(round(x),round(y),11);
}
}
void parcircle(int ,int ,float,int ) ;
void parcir(int xc,int yc,float r,int sang,int eang,int col)
{ int k;
float x,y;

for(k=sang;k { x=xc+r*cos(pi*k/180);
y=yc+r*sin(pi*k/180);
putpixel(round(x),round(y),col);
}
}

void drawcir(int x,int y,float r,int sang)
{ int k=0;
int eang;
eang=sang+120;
while(k!=3)
{
parcir(x,y,r,sang,eang,(k+1));
sang=eang;
eang+=120;
k++;
}
}
void parc(int xc,int yc,float r1,int i)
{ int k=0,r,m; float x,y;
r=r1+60;m=r1+120;
for(k=0;k<360;k++)
{ x=xc+2*r*cos(pi*k/180);
y=yc+r*sin(pi*k/180);
delay(10);
cleardevice();
parcircle(xc,yc,r1,11);
i+=5;
drawcir(round(x),round(y),10,i);
x=xc+2*m*cos(pi*k/180);
y=yc+m*sin(pi*k/180);

drawcir(round(x),round(y),20,i);
drawellipse(round(x),round(y),30,10);

}

}
void parcircle(int xc,int yc,float r,int col)
{ int k=0; float x,y;
for(k=0;k<360;k++)
{ x=xc+r*cos(pi*k/180);
y=yc+r*sin(pi*k/180);
putpixel(round(x),round(y),col);

}
}
//========================
void main()
{ int gd,gm;
detectgraph(&gd,&gm);
int x,y,xc,yc; float r,r1;
i=0;

initgraph(&gd,&gm,"..\\bgi");

printf("\n enter the centre of the sun");
scanf("%d",&x);
scanf("%d",&y);
printf("\n enter the radius of the sun");
scanf("%f",&r);
xc=x;yc=y;

while(!kbhit())
{

parc(xc,yc,r,i);

}




getch();
}