quoted from Contest Analysis "We can subtract from the radius of each of the three plants the radius of the smallest plant, then compute an inversion about that plant's center. Then we find appropriate tangents to the two inverted plants, re-invert to find the corresponding circle, and add back the radius of the smallest plant. "
I got puzzled when trying to understand this(may caused by my poor English). Why doing all these inversions? Doe "appropriate tangents" mean a tangents go through the smallest plant's center? And finally,how does this solution work? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "google-codejam" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-code?hl=en -~----------~----~----~----~------~----~------~--~---
