User talk:198.84.193.170

October 2013
Hello, I'm Racerx11. I wanted to let you know that I undid one of your recent contributions, such as the one you made with this edit to Binary heap, because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Racer X11 Talk to me Stalk me  03:30, 3 October 2013 (UTC)