flood fill program in c in computer graphics with output

/*Flood Fill Algorithm in C in Computer Graphics with Output*/

FloodFill Algorithm

#include<stdio.h>

#include<graphics.h>

#include<dos.h>

#include<conio.h>

void floodfill(int x,int y,int old,int newcol)

{

                int current;

                current=getpixel(x,y);

                if(current==old)

                {

                                delay(5);

                                putpixel(x,y,newcol);

                                floodfill(x+1,y,old,newcol);

                                floodfill(x-1,y,old,newcol);

                                floodfill(x,y+1,old,newcol);

                                floodfill(x,y-1,old,newcol);

                                floodfill(x+1,y+1,old,newcol);

                                floodfill(x-1,y+1,old,newcol);

                                floodfill(x+1,y-1,old,newcol);

                                floodfill(x-1,y-1,old,newcol);

                }

}

void main()

{

                int gd=DETECT,gm;

                initgraph(&gd,&gm,"C:\\TURBOC3\\BGI");

                rectangle(50,50,150,150);

                floodfill(70,70,0,15);

                getch();

                closegraph();

}

output: