#include"graphics.h"
#define PI 3.1416
#include"math.h"
#include"dos.h"
main()
{
int x0=320,y0=240,r0=150;
void init_sceen();
void sec();
init_sceen(x0,y0,r0);
sec();
closegraph();
}
void init_sceen(int x0,int y0,int r0)/********************************************/
{
int i,x,y,graphdriver,graphmode;
char s[10];
float alpha,a0=90;
graphdriver=DETECT;
initgraph(&graphdriver,&graphmode,"");
setbkcolor(3);
setcolor(2);
circle(x0,y0,r0);
circle(x0,y0,r0+30);
setfillstyle(SOLID_FILL,10);
floodfill(x0-r0-10,y0,2);
/*please input the time*/
for(i=12;i>=1;i--)
{
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