Red–black tree - WikipediaExample of a red-black tree In computer science, a red–black tree is a self-balancing binary search tree data structure noted for fast storage and retrieval of ordered information. The nodes in a red-black tree hold an extra "color" bit, often drawn as red and black, which help ensure that the tree is always approximately balanced.[1] When the tree is modified, the new tree is rearranged and "repa
