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# Program of Flood fill algorithm

Posted By: Easy Tutor     Category: C++ Programming     Views: 54924

## Code for Program of Flood fill algorithm in C++ Programming

```# include <stdio.h>
# include <dos.h>
# include <iostream.h>
# include <conio.h>
# include <stdlib.h>
# include <graphics.h>

void FloodFill(int,int,int,int);
void MidPoint(int);
void main()
{
int xCenter=320;
int yCenter=240;
int gDriver = DETECT, gMode, errorcode;
initgraph(&gDriver, &gMode, "c:\\tc\\bgi");
cleardevice();
MidPoint(49);

FloodFill(xCenter+1,yCenter+1,0,8);
getch();
return;
}

void MidPoint(int Radius)
{
int iCntr, x, y,p0;
x=0;
y=Radius;
int xCenter=320;
int yCenter=240;

p0=(5/4)-Radius;

putpixel(xCenter+x,yCenter+y,15);
putpixel(xCenter-x,yCenter+y,15);
putpixel(xCenter+x,yCenter-y,10);
putpixel(xCenter-x,yCenter-y,10);
putpixel(xCenter+y,yCenter+x,12);
putpixel(xCenter-y,yCenter+x,12);
putpixel(xCenter+y,yCenter-x,9);
putpixel(xCenter-y,yCenter-x,9);

while(x<=y)
{
if(p0 < 0)
{
p0=p0 + 2*(x+1) + 1;
x=x+1;
}
else
{
p0=p0 + 2*(x+1) + 1 - 2*(y-1);
x=x+1;
y=y-1;
}

putpixel(xCenter+x,yCenter+y,15);
putpixel(xCenter-x,yCenter+y,15);
putpixel(xCenter+x,yCenter-y,10);
putpixel(xCenter-x,yCenter-y,10);
putpixel(xCenter+y,yCenter+x,12);
putpixel(xCenter-y,yCenter+x,12);
putpixel(xCenter+y,yCenter-x,9);
putpixel(xCenter-y,yCenter-x,9);

}

}
void FloodFill(int pointx,int pointy,int OldColor,int NewColor)
{
int Intensity=getpixel(pointx,pointy);
if(Intensity==OldColor)
{
putpixel(pointx,pointy,NewColor);
FloodFill(pointx+1,pointy,OldColor,NewColor);
FloodFill(pointx-1,pointy,OldColor,NewColor);
FloodFill(pointx,pointy+1,OldColor,NewColor);
FloodFill(pointx,pointy-1,OldColor,NewColor);
}
}```
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 Easy Tutor author of Program of Flood fill algorithm is from United States. Easy Tutor says Hello Friends,I am Free Lance Tutor, who helped student in completing their homework. I have 4 Years of hands on experience on helping student in completing their homework. I also guide them in doing their final year projects.I have share many programs on this website for everyone to use freely, if you need further assistance, than please contact me on easytutor.2ya [at the rate] gmail [dot] comI have special discount scheme for providing tutor services. I am providing tutor service to students from various contries, currently most of my students are from United States, India, Australia, Pakistan, Germany, UK and Canada. I am also here to expand my technical network to receive more opportunity in my career, make friends to help them in resolving their technical problem, learn and share my knowledge, If you like to be my friend, Please send me friend request.Thanks,Happy Programming :) View All Articles

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 Jeena Raghavan from Australia Comment on: Jan 18 dos.h: No such file or directory # include ^compilation terminated.I got this error during compilation :-(

 Anisha Amir from Taiwan Comment on: Nov 05 I get errors and one of my error is: graphics.h: No such file or directory. Do I have to download any additional library?

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