//算法6.4 P131 有改动
//按先序次序输入二叉树中结点的值，构造二叉链表表示的二叉树T
void createBiTree(BiTreeLink *T){
TElemType ch;
scanf("%c",&ch);
fflush(stdin);
if(ch==Nil||ch=='#'){//空
*T = NULL;
}else{
*T = (BiTreeLink)malloc(sizeof(BiTNode));
if(!*T){
exit(0);
}
(*T)->data = ch;//生成根结点
createBiTree(&(*T)->lchild);//构造左子树
createBiTree(&(*T)->rchild);//构造右子树
}
}
//按先序次序输入二叉树中结点的值（一个字符），点号字符表示空树，构造二叉链表表示的二叉树T
void createBiTree(BiTree &T, int &root, int &i){
TElemType e;
scanf("%c", &e);
if(e!='#'){
if(e!='.'){//输入的当前节点不是“空树”，是实结点
T[i].data = e;
//T[i].llink = 0;
//T[i].rlink = 0;
root = i;
createBiTree(T, T[root].llink, ++i);
createBiTree(T, T[root].rlink, ++i);
}else{
root = 0;//输入的当前节点是“空树”，是虚结点，则对应指向它的链为0
i--;//静态链表下标回退，因为空树没有进表，只有实节点进表了
}
}
}
/**
* 构造二叉树
*/
void createBiTree(BiTree *T)
{
TElemType ch;
//scanf("%c", &ch);
ch = arr[i++];
if(ch=='#')
*T = NULL;
else
{
*T = (BiTree)malloc(sizeof(BiTNode));
if(!*T)
exit(-1);
(*T)->data = ch;
createBiTree(& (*T)->lchild);
createBiTree(& (*T)->rchild);
}
}
int main()
{
BiTree T;
//printf("input former sequence traversal, like:\nab#d##c##\n");
createBiTree(&T);
inOrderTraverse(T);
printf("\n");
return 0;
}
void main(){
BiTree tree;
int root = 1;//根节点的位置
printf("请按先序次序输入二叉树各节点以#号结束，空树用点号代替：\n");
int pos = 1;//控制加入静态数组的位置
createBiTree(tree, root, pos);
printf("先序遍历打印二叉树(递归算法):\n");
preOrderPrint(tree, root);
printf("\n");
printf("先序遍历打印二叉树(非递归算法):\n");
preOrderPrint2(tree, root);
printf("\n");
printf("中序遍历打印二叉树(递归算法):\n");
inOrderPrint(tree, root);
printf("\n");
printf("中序遍历打印二叉树(非递归算法):\n");
inOrderPrint2(tree, root);
printf("\n");
printf("后序遍历打印二叉树(递归算法):\n");
postOrderPrint(tree, root);
printf("\n");
printf("后序遍历打印二叉树(非递归算法):\n");
postOrderPrint2(tree, root);
printf("\n");
printf("按层次遍历打印二叉树(非递归算法):\n");
hierarchicalTraversePrint(tree, root);
printf("\n");
int depth = getBiTreeDepth(tree, root);
printf("该二叉树的深度为:%d\n", depth);
int size = getBiTreeSize(tree, root);
printf("该二叉树的结点数为:%d\n", size);
int leafNodesNum = getBiTreeLeafNodesNum(tree, root);
printf("该二叉树的叶子结点数为:%d\n", leafNodesNum);
}
void main(){
int i;
BiTreeLink T,p,c;
TElemType e1,e2;
initBiTree(&T);
//判断数是否为空，求树的深度
printf("\nInit a Binary Tree!\nThe tree is empty or not?%d(1:yes 0:no);The tree depth=%d\n",biTreeEmpty(T),biTreeDepth(T));
//寻找根结点
e1 = root(T);
if(e1!=Nil)
printf("\nThe root of the Binary Tree is:'%c'\n",e1);
else
printf("\nThe Binary Tres has no root\n");
//请先序输入二叉树(如:ab三个空格表示a为根结点,b为左子树的二叉树)
printf("\nBuild a Binary Tree!like abc@@de@g@@f@@hi@j@@k@@,@stand for space\n");
createBiTree(&T);
//判断数是否为空，求树的深度
printf("\nThe tree is empty or not?%d(1:yes 0:no);The tree depth=%d\n",biTreeEmpty(T),biTreeDepth(T));
//寻找根结点
e1 = root(T);
if(e1!=Nil)
printf("\nThe root of the Binary Tree is:'%c'\n",e1);
else
printf("\nThe Binary Tres has no root\n");
//层序递归遍历(Of sequence to traverse the binary tree)
printf("\nlevel order Traverse the Binary Tree:\n");
levelOrderTraverse(T,visitT);
//先序遍历
printf("\npreOrder Traverse the Binary Tree:\n");
preOrderTraverse(T,visitT);
//中序递归遍历
printf("\n\ninOrder recursion Traverse the Binary Tree:\n");
inOrderTraverse(T,visitT);
//中序非递归遍历1
printf("\ninOrder non-recursion Traverse the Binary Tree 1:\n");
inOrderTraverse1(T,visitT);
//中序非递归遍历2
printf("inOrder non-recursion Traverse the Binary Tree 2:\n");
inOrderTraverse2(T,visitT);
//后序递归遍历
printf("\npostOrder recursion Traverse the Binary Tree:\n");
postOrderTraverse(T,visitT);
//修改结点
e1 = 'd';//原值
//scanf("%c",&e1);
p = point(T,e1);//获得e1对应的指针
//获得对应结点的值
printf("\n\nKnow the previous vaule is:'%c'\nEnter the new vlaue:\n",value(p));
e2 = 'r';//新结点的值
//scanf("%c",&e2);
assign(p,e2);//赋新值
//先序遍历
printf("preOrder Traverse the Binary Tree:\n");
preOrderTraverse(T,visitT);
//寻找双亲
e1 = parent(T,e2);
if(e1!=Nil) printf("\n\nthe parent of '%c' is : '%c'\n",e2,e1);
else printf("'%c' has no parent\n",e2);
//寻找左孩子
e1 = leftChild(T,e2);
if(e1!=Nil) printf("\nthe left child of '%c' is : '%c'\n",e2,e1);
else printf("'%c' has no left child\n",e2);
//寻找右孩子
e1 = rightChild(T,e2);
if(e1!=Nil) printf("\nthe right child of '%c' is : '%c'\n",e2,e1);
else printf("'%c' has no right child\n",e2);
//寻找左兄弟
e1 = leftSibling(T,e2);
if(e1!=Nil) printf("\nthe left sibling of '%c' is : '%c'\n",e2,e1);
else printf("'%c' has no left sibling\n",e2);
//寻找右兄弟
e1 = rightSibling(T,e2);
if(e1!=Nil) printf("\nthe right sibiling of '%c' is : '%c'\n",e2,e1);
else printf("'%c' has no right sibiling\n",e2);
//初始化需要插入的树
initBiTree(&c);//s=jk //这里有三个空格
printf("\nBuild the Binary Tree c which has no right child:\n");
c = (BiTreeLink)malloc(sizeof(BiTNode));
p = (BiTreeLink)malloc(sizeof(BiTNode));
c->lchild = p;
c->rchild = NULL;
c->data = 'm';
p->lchild = p->rchild = NULL;
p->data = 'n';
//createBiTree(&c);
//先序递归遍历
printf("\npreOrder Traverse the Binary Tree:\n");
preOrderTraverse(c,visitT);
//树s插到树T中，请输入树T中树s的双亲结点 s为左(0)或右(1)子树:
printf("\n\nInsert the Tree s to the Tree T,enter the parent of the Tree c in the Tree T,left Tree(0) and right Tree(1):\n");
e1= 'b';i = 0;//将子树c作为结点'b'的左子树
//scanf("%c%d",&e1,&i);
p = point(T,e1);//p是T中树c的双亲结点指针
insertChild(p,i,c);
//先序递归遍历
printf("\npreOrder Traverse the Binary Tree:\n");
preOrderTraverse(T,visitT);
// 删除子树,请输入待删除子树根结点 左(0)或右(1)子树
printf("\n\nDelete the Tree s,enter the root of the deleting Child Tree, left Tree(0) and right Tree(1):\n");
e1= 'b';i = 1;//删除父结点为'b'的右子树
p = point(T,e1);//p是T中树c的双亲结点指针
deleteChild(p,i);
//先序递归遍历
printf("\npreOrder Traverse the Binary Tree:\n");
preOrderTraverse(T,visitT);
//清空子树
clearBiTree(&T);
printf("\n\nEmpty the Binary Tree?%d(1:yes 0:no)\nThe tree depth=%d\n",biTreeEmpty(T),biTreeDepth(T));
//寻找根结点
e1 = root(T);
if(e1!=Nil)
printf("\nThe root of the Binary Tree is:'%c'\n",e1);
else
printf("\nThe Binary Tres has no root\n");
}