[boost] Color of nodes in Edmonds & Karps max flow algorithms.

Subject: [boost] Color of nodes in Edmonds & Karps max flow algorithms.
From: Dan Jiang (danjiang_at_[hidden])
Date: 2010-04-23 15:49:34

Hi All,
I have a question: What is the color(s) of nodes that can still be labeled after max flow is found in the Edmonds and Karp's algorithm?
Are they black AND grey or just black? I know black nodes can still be labeled, what about nodes with grey color? 
-Thanks,
Dan 		 	   		  
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