lastCommonAncestor()

Tree::Position syten::T3N::Tree::lastCommonAncestor	(	Position const &	one,
		Position const &	two
	)

Returns the last common ancestor and the number of shared nodes.

References std::min(), std::vector< T >::push_back(), and std::vector< T >::size().

Referenced by syten::T3N::Tree::path().

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