Function Height

Trees/BST.C:87–95

}

int Height(struct Node *p)
{
    int x, y;
    if (p == NULL)
        return 0;
    x = Height(p->lchild);
    y = Height(p->rchild);
    return x > y ? x + 1 : y + 1;
}

struct Node *InPre(struct Node *p)
{