this program design AVL tree with Graphical tr-this program design AVL tree with Graphical tree

BUC算法，没用到任何与STL相关的内容，使用的初始化的结构是avltree，BUC内含计数排序、插排和快排-BUC algorithm, doesn t use any STL-related content, use the structure to initialize is avltree, BUC includes counting sort, insert sort and quick sort