avl_tree - AVL tree and Red-black tree in Ruby Copyright (C) 2012 Hiroshi Nakamura <nahi@ruby-lang.org> == Author Name:: Hiroshi Nakamura E-mail:: nahi@ruby-lang.org Project web site:: http://github.com/nahi/avl_tree == License This program is copyrighted free software by Hiroshi Nakamura. You can redistribute it and/or modify it under the same terms of Ruby's license; either the dual license version in 2003, or any later version.