Counting the number of pairs of circles having a common point

Правка en1, от hongjun-7, 2016-03-04 08:59:56

You can see the problem here.

Every two circles touch in at most one point (in particular no circle can be contained in a different circle).

Does anyone have some ideas of the problem?

Теги geometry

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en2 Английский hongjun-7 2016-03-04 09:29:00 5 Tiny change: 'ome ideas of the probl' -> 'ome ideas about the probl'
en1 Английский hongjun-7 2016-03-04 08:59:56 298 Initial revision (published)