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easy_taker
Aug '12

Hi
can any body tell me why i get WA in GOALFR every time.
is my code really give wrong answers ???
http://www.spoj.pl/problems/GOALFR

my code :

deleted after AC

in stuct line : 'm' & 'd' are from line equation y= m x + d
l1 : is the line that between cross1 and ball (as l2 : cross2 , ball )
far1 : is the distanse between Goal Keeper center (GKc) and l1 (as far2 : GKc , l2)

i think my wrong in output form.
thanks

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    Aug '12

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    Aug '12
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easy_taker
Aug '12

Sorry but i'm sure it was in the opponent goal :
as we know the board center coord (0,0) so if GK x axis > 0 so opponent goal x >0 ( so 'fact' take 1) otherwise 'fact' = -1.
Cross bars of the net coords on x are 'cross(1,2).x' * fact .
if distanse between l1 (or l2 or both) and GK center > R so sure player can did it.
thanks leppy smile

easy_taker
Aug '12

Thanks leppy , it's Ac smiley i'm very happy, i really never note that net on the right side only.
thanks again.

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