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You need to look carefully at the geometry of this problem.
It's online, thanks a lot! This warning about geometry incites curiosity :)
Good one, thanks. One case though that I disagree with:
-2 7 -1
expects 9
as the answer but I would argue that 10
is correct.
Mathias,
Thanks for spotting this. I initially hadn't intended the y value to be as small as 1 or -1 and later forgot about this. I have amended the Setter code and have sent it off to Rodion.
Thanks, Friends, the code is updated (I think) - please verify.
Thanks, the tests seem to have now |y| >= 2
which avoids having to handle cases |y| = 1
or even y = 0
.