Introduction - If you have any usage issues, please Google them yourself
2-3 tree is such a tree: A. Each non-leaf node has two or three sons B. Each congregation tree roots to leaves is equal to the length of the path C. 2-3 tree is only one root node of the tree. The subject of the request to establish a 2-3 tree from keyboard input to a sequence of integers. So I conceived the achievements of the achievements of 2-3 tree insertion operation.