http://en.wikipedia.org/wiki/Splay_treehttp://www.youtube.com/watch?v=G5QIXywcJlYtree kodeknight balanced trees incomplete See alsoFor a Given node of a binary tree, print the K distance nodes.Find the distance between 2 nodes in Binary TreeFind the distance between 2 nodes in Binary TreeProgram to count leaf nodes in a binary treeFriend Circle - Hackerrank