Google Interview Question for Software Engineer / Developers


Country: United States
Interview Type: In-Person




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1
of 1 vote

Assumption: While a pairwise intersection of corresponding pixels in the two images....Intersection is white iff both pixels of the pair are white.

Then you can do the recursive intersection as follows:
let A and B be to corresponding nodes in the two trees (or their subtrees)

if rootA.color == "black":
    return A
if rootA.color == "white":
    return B
if rootA.color == "gray" and rootB.color == "gray".
##Pairwise intersect the subtrees of A and B.
##If all four of the returned subtrees have a black root, return a single node tree with a black root.
Otherwise return a tree with a gray root and the four returned subtrees as its subtrees.

Complexity is O(min{|A|, |B|}).

- vik September 30, 2013 | Flag Reply
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1
of 1 vote

Could you provide some code please?

- Anonymous October 13, 2013 | Flag
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0
of 2 vote

Could you describe this question more specifically.

- yxsh01 September 29, 2013 | Flag Reply
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0
of 0 vote

It is a continuation of the previous question.
Define a quad-tree for a black and white image. Count the number the of black pixels.

- chandeepsingh85 October 01, 2013 | Flag Reply
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0
of 0 vote

what is question asking ?

- jigili September 18, 2015 | Flag Reply


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