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Discussion of Problem 1181. Cutting a Painted Polygon

I have some questions......
Posted by hello 14 May 2004 18:00
I got WA all the time.
here is one test :
10
BGBGRBBGRG
I think the answer is 0 .
But the AC solution said it's possible . I'm puzzle.
Who can tell me why ?
Re: I have some questions......
Posted by Ярославцев Григорий 14 May 2004 21:10
Everything is possible! Just think better.
Re: I have some questions......
Posted by Tintor Marko 23 Jun 2005 01:44
Solution is 0.
There is edge with 2 blue vertices: BGBGR[BB]GRG