Rankk.org Topic - Level 5/11

Level 5/11
Posted by Pha. skewlboy 27 on 2013-03-02 20:55:51
I'm not sure I understand the challenge text...
Find the greatest product of four numbers in any direction
Does this mean "four consecutive numbers in the same direction" as well?
So a row with
4 2 1 4 5
is it "2 1 4 5" or "4 2 4 5"?
And is only within the same direction or do we test products following a path like:
o X o o X
o o X X o
(being X selected numbers for a product calculation).
And about diagonals, any diagonal or only the 4 main ones?
ie,
o X o o o
o o X o o
o o o X o
o o o o X
o o o o o
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Level 5/11
Posted by Pha. Sphinx 6576 from on 2013-03-03 13:48:49 Reply
The four numbers in whichever direction must lie in a straight line.
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Level 5/11
Posted by Pha. skewlboy 27 on 2013-03-04 01:54:55 Reply
Thanks Sphinx,
and just to confirm as in the previous message:
4 2 1 4 5
the highest is "2 1 4 5" and not "4 2 4 5", right?
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- Re^2: Level 5/11
  Posted by Pha. Sphinx 6576 from on 2013-03-04 11:25:57 Reply
  Yes
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