User talk:117.254.172.112

September 2010
We welcome and appreciate your contributions, but your recent edits to Data Structures/Trees had to be undone. Please see What is Wikibooks? to learn more about what contributions are beneficial to Wikibooks. Please take a look at the welcome page to learn more about contributing to this project. If you would like to experiment further, please use the sandbox instead. Thank you. – Adrignola talk 14:18, 1 September 2010 (UTC)