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Discussion of Problem 1103. Pencils and Circles

Hints
Posted by BFL 13 Nov 2005 11:05
1. there are always solutions.
2. convex polygon. but don't need to find.

Edited by author 10.12.2005 05:18
Re: Hints
Posted by ile 26 Jun 2010 00:04
Hey can you give me an idea of using convex polygons for this problem??

I solved it in O(n^2), tho it can be done in O(nlogn), but none of my solutions uses convex hulls...