test/kruskal_test.cc
2009-04-14 Exploit that the standard maps are reference maps (#190)
2008-12-31 Happy New Year again
2008-07-13 Apply unify-sources.sh to the source tree
2008-06-15 Improve and redesign test programs + unify their output (ticket #25)
2008-02-29 Port kruskal() and UnionFind from svn -r3468