From: Jean Privat <jean@pryen.org>
Date: Mon, 17 Nov 2014 15:54:17 +0000 (-0500)
Subject: Merge: lib: Enhanced DisjointSet data structure
X-Git-Tag: v0.6.11~33
X-Git-Url: http://nitlanguage.org

Merge: lib: Enhanced DisjointSet data structure

It is now possible to retrieve the number of subsets in the partition by
using the 'number_of_subsets' property. It is useful for intsance when
one wants to know if the partition is a singleton, or if is trivial
(every element is alone in its subset).

Pull-Request: #912
Reviewed-by: Jean Privat <jean@pryen.org>
Reviewed-by: Alexis Laferrière <alexis.laf@xymus.net>
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