http://www.gild.com/challenges/details/295

No of connected components, use BFS/DFS

On Sun, Dec 4, 2011 at 9:12 PM, rajesh ko <[email protected]> wrote:

> We have given a black and white image and a fill tool that turn an
> area of black pixel into white pixels. Fill tool works like a 8-way
> floodfill tool.So it will turn each black pixel to a white pixel
> untill there isn't a blackpixel that can be reached from the previous
> pixel. (8 ways -> north,east,west,south and four corners).
>
> Q : Given a black and white image of dimension x*y , Determine how
> many time we have to apply fill tool to turn the whole image into a
> white one. For simplicity consider an image is a matrix of size x*y.
> in example 1-> white pixel and 0-> black pixel.
>
> eg:
> i/p:
>
> 3 5
>
> 10111
> 10100
> 00111
>
> o/p:
>
> 2
>
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>


-- 
Sunny Aggrawal
B.Tech. V year,CSI
Indian Institute Of Technology,Roorkee

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