Ejemplo n.º 1
0
        public override BinNode <T> Insert(T e)
        {
            BinNode <T> x = Search(e);

            if (x != null)
            {
                return(x);
            }
            //空树,第一次插入节点
            if (Hot == null)
            {
                Root = new BinNode <T>(e);
                Size++;
                UpdateHeight(Root);
            }
            else
            {
                if (Lt(e, Hot.Data))
                {
                    x = Hot.InsertAsLc(e);
                }
                else
                {
                    x = Hot.InsertAsRc(e);
                }
                Size++;
                UpdateHeightAbove(x);
            }

            //一直到根节点
            for (BinNode <T> g = Hot; g != null; g = g.Parent)
            {
                if (!g.AvlBalanced())
                {
                    bool isLchild = g.IsLChild;
                    bool isRoot   = g == Root;
                    var  y        = RotateAt(TallerChild(TallerChild(g)));
                    if (!isRoot)
                    {
                        if (isLchild)
                        {
                            y.Parent.LChild = y;
                        }
                        else
                        {
                            y.Parent.RChild = y;
                        }
                    }
                    break;
                }
                else
                {
                    UpdateHeight(g);
                }
            }
            return(x);
        }
Ejemplo n.º 2
0
        public override BinNode <T> Insert(T e)
        {
            BinNode <T> x = Search(e);

            if (x != null)
            {
                return(x);
            }
            if (Hot == null)
            {
                Root = new BinNode <T>(e);
                Size++;
                UpdateHeight(Root);
                Root.Color = RbColor.RbBlack;
                return(x);
            }
            x = Lt(e, Hot.Data) ? Hot.InsertAsLc(e) : Hot.InsertAsRc(e);
            Size++;
            UpdateHeightAbove(x);
            x.Color = RbColor.RbRed;
            SolveDoubleRed(x);
            return(x);
        }