#!ruby -an\x0d x,y,c,d,e,f,g,h=$F.map(&:to_i);a=x-c;b=y-d;c-=e;d-=f;e-=g;f-=h;g-=x;h-=y;p e*g+f*h>(a*c+b*d)*(e*h-f*g)/(b*c-a*d)?1:0
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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