splay trees

A splay tree is a type of self-adjusting binary search tree that reorganizes itself whenever you access a node. Each time you search or modify a node, the tree moves that node closer to the top (the root) through specific rotations. This process, called "splaying," makes frequently accessed nodes quicker to reach in future operations. Splay trees are efficient because they adapt over time to usage patterns, often providing fast access to popular data, and do not require explicit balancing like other tree structures.