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树和森林v2.0 层次非递归创建树和森林,森林中的树不连

#include <iostream>
#include"queue.h"//之前写的类 
#include"stack.h" //之前写的类 
using namespace std;




/*
	用二叉树的方式实现
	root指针指向第一棵树的根节点 
*/ 





 
template <class T>
class Forest;

//========================================
// 森林节点类声明
template <class T>
class ForestNode
{ 
private:
    ForestNode<T>  *firstChild,*nextBrother;
	//指向大孩子结点的指针和指向大兄弟结点的指针 
    T data;//数据
public:
	friend class Forest<T>;  
    //构造函数
    ForestNode(const T& item,ForestNode *lptr=NULL,ForestNode *rptr=NULL):
        data(item),firstChild(lptr),nextBrother(rptr){}
        
    ForestNode(){}

    ForestNode<T> * GetFirstChild()const{return firstChild;}//返回大儿子节点

    void SetFirstChild(ForestNode<T> * L){firstChild=L;}//设置大儿子结点 

    ForestNode<T> * GetNextBrother()const{return nextBrother;}//返回大兄弟节点

    void SetNextBrother(ForestNode<T> * R){nextBrother=R;}//设置大兄弟节点

    T GetData(){return data;}

    void SetData(T item){data=http://www.mamicode.com/item;}" 森林的先根遍历的序列为:";
    PreOrder(GetRoot());
    cout<<endl;
    
    
    cout<<" 森林的后根遍历的序列为:";
    PostOrder(GetRoot());
    cout<<endl;
         
    cout<<" 森林的层次遍历的序列为:";
    LevelOrder(GetRoot());
    cout<<endl;
}


//=======================================
//在以节点t为根节点的子森林中查找data域为item的结点
template <class T>
ForestNode<T>* Forest<T>::Find(ForestNode<T> *t,const T&item)const
{
    ForestNode<T> * p;
    //递归出口
    if(t==NULL)return NULL;
    if(t->GetData()==item) return t;
    //递归
    p=Find(t->GetFirstChild(),item);
    if(p!=NULL) return p;
    
    p=Find(t->GetNextBrother(),item);
    if(p!=NULL) return p;
    
	return NULL;
}



//======================================
//创建森林 
template <class T>
ForestNode<T>* Forest<T>::CreateForest() {
	ForestNode<T>*p,*t;
	
	cout<<"森林中树的数量:";
	cin>>number;
	int i=1;
	if(number!=0)
	{
		cout<<"创建第"<<i<<"棵树"<<endl; 
		t=root=CreateTree();
		i++; 
		while(i<=number)
		{
			cout<<"创建第"<<i<<"棵树"<<endl;
			p=CreateTree();
			t->SetNextBrother(p);
			t=p;
			i++;
		}
	}
	return root;
}

template <class T>
ForestNode<T>* Forest<T>::CreateTree() 
{
	cout<<"输入节点的值";
	ForestNode<T>* currptr;
   	T data;
   	cin>>data;
   	currptr=new ForestNode<T>(data,NULL,NULL); 
   	cout<<"输入该结点的子树数";
   	int n;
	cin>>n;
	int i=1;
	if(n!=0)
	{
		cout<<"创建"<<data<<"的第1棵子树"<<endl; 
		ForestNode<T>* temp1 = CreateTree();
		currptr->SetFirstChild(temp1);
		i++;
		while(i<=n)
		{
			cout<<"创建"<<data<<"的第"<<i<<"棵子树"<<endl;
			ForestNode<T>* temp2=CreateTree();
			temp1->SetNextBrother(temp2);
			temp1=temp2;
			temp2=NULL;
			i++;
		}
	}
	return currptr;
}



template <class T>
ForestNode<T>* Forest<T>::CreateNewTree()//在森林中增加一棵树 
{
	ForestNode<T>* p=CreateTree();
	ForestNode<T>* t=root;
	while(t->GetNextBrother()!=NULL) t=t->GetNextBrother();
	t->SetNextBrother(p); 
	return p;
} 



template <class T>
ForestNode<T>* Forest<T>::GetTree(int k)//返回第k棵树 
{
	if(k>number&&k<1) return NULL;//越界 
	int i=1; 
	ForestNode<T>*t=root;
	while(i!=k) 
	{
		t=t->GetNextBrother();
		i++;
	}
	return t;
	
}

//=============================================================
//先序遍历森林  
template <class T>
void Forest<T>::PreOrder( ForestNode<T>* t) const {
   if(t == NULL) {
      return;
   }
   	cout<<t->GetData()<<" ";
   		
   	PreOrder(t->GetFirstChild());
   	PreOrder(t->GetNextBrother());
}

template <class T>
void Forest<T>::NorePreOrder(ForestNode<T>* t) const{
    LStack<ForestNode<T>*> q;
    if(t!=NULL) {
       	q.Push(t);
   	}
    ForestNode<T> *node;
    while(!q.IsEmpty()) {
      	q.Pop(node);
      	 
		cout<<node->GetData()<<" ";
      	if(node->GetFirstChild() != NULL) {
         	q.Push(node->GetFirstChild());
      	}
      	if(node->GetNextBrother() != NULL) {
         	q.Push(node->GetNextBrother());
      	}
   	}
}
//=========================================

//后序遍历森林 
template <class T>
void Forest<T>::PostOrder( ForestNode<T>* t) const {
   	if(t == NULL) {
      	return;
   	}
   	PostOrder(t->GetFirstChild());
	cout<<t->GetData()<<" ";
   	PostOrder(t->GetNextBrother());
}

template <class T>
void Forest<T>::NorePostOrder(ForestNode<T>* t) const{
    LStack<ForestNode<T>*> q;
    if(t!=NULL) {
       	q.Push(t);
   	}
    ForestNode<T> *node;
    while(!q.IsEmpty()) {
    	q.Pop(node);
		if(node->GetFirstChild() != NULL) {
         	q.Push(node->GetFirstChild());
      	}
      	
		cout<<node->GetData()<<" ";
      	if(node->GetNextBrother() != NULL) {
         	q.Push(node->GetNextBrother());
      	}
   	}
}


//======================================
//层次遍历 
template <class T>
void Forest<T>::LevelOrder(ForestNode<T>* t) const
{ 
	LQueue<ForestNode<T>*> q;
	ForestNode<T>*s=NULL; 
	//所有firstchild都入队,brother立即访问 
    if(t!=NULL) {
       	q.QInsert(t);
   	}
    ForestNode<T> *node;
    while(s!=NULL||!q.IsEmpty())
	{
	  	while(s!=NULL)
		{
			node=s;
			s=NULL;
			cout<<node->GetData()<<" ";
		
      		if(node->GetFirstChild() != NULL) {
         		q.QInsert(node->GetFirstChild());
      		}
      		if(node->GetNextBrother() != NULL) {
      			s=node->GetNextBrother();
			}
   		}
   		if(!q.IsEmpty())
   		{
		   	q.QDelete(node);
			 
			cout<<node->GetData()<<" ";
		
      		if(node->GetFirstChild() != NULL) {
         		q.QInsert(node->GetFirstChild());
      		}
      		if(node->GetNextBrother() != NULL) {
      			s=node->GetNextBrother();
			  }
   		}
	}
}

 
//========================================
//删除森林 
template <class T>
void Forest<T>::Del(ForestNode<T> *t)
{
	if(t != NULL) {
    Del(t->GetFirstChild());
    Del(t->GetNextBrother());
    delete t;
	}
}	 

 

#include <iostream>
#include"queue.h" 
#include"stack.h"  
using namespace std;

template <class T>
class Tree;



//========================================
// 树节点类声明
template <class T>
class TreeNode
{ 
private:
    TreeNode<T>  *firstChild,*nextBrother;
	//指向大孩子结点的指针和指向大兄弟结点的指针 
    T data;//数据
public:
	friend class Tree<T>;  
    //构造函数
    TreeNode(const T& item,TreeNode *lptr=NULL,TreeNode *rptr=NULL):
        data(item),firstChild(lptr),nextBrother(rptr){}

    TreeNode<T> * GetFirstChild()const{return firstChild;}//返回大儿子节点

    void SetFirstChild(TreeNode<T> * L){firstChild=L;}//设置大儿子结点 

    TreeNode<T> * GetNextBrother()const{return nextBrother;}//返回大兄弟节点

    void SetNextBrother(TreeNode<T> * R){nextBrother=R;}//设置大兄弟节点

    T GetData(){return data;}

    void SetData(T item){data=http://www.mamicode.com/item;}" 树的先根遍历的序列为:";
    PreOrder(GetRoot());
    cout<<endl;
    
    
    cout<<" 树的后根遍历的序列为:";
    PostOrder(GetRoot());
    cout<<endl;
         
    cout<<" 树的层次遍历的序列为:";
    NoreLevelOrder(GetRoot());
    cout<<endl;
}


//=======================================
//在以节点t为根节点的子树中查找data域为item的结点
template <class T>
TreeNode<T>* Tree<T>::Find(TreeNode<T> *t,const T&item)const
{
    TreeNode<T> * p;
    //递归出口
    if(t==NULL)return NULL;
    if(t->GetData()==item) return t;
    //递归
    p=Find(t->GetFirstChild(),item);
    if(p!=NULL) return p;
    
    p=Find(t->GetNextBrother(),item);
    if(p!=NULL) return p;
    
	return NULL;
}


//在以节点t为根节点的子树中搜索节点p的父结点
template <class T>
TreeNode<T>* Tree<T>::Father(TreeNode<T>* t,TreeNode<T>*p)const
{
	
	
	if(t==NULL||p==NULL)//若t,p中有一个为空 
		return NULL;
	if(p==root) return NULL; //若t是根结点则没有父节点 
	
	TreeNode<T>*result=NULL;
	TreeNode<T>*q=t->GetFirstChild();//从第一棵子树开始搜索 
	while(q!=NULL&&q!=p)
	{
		result=Father(q,p);
		if(!result) q=q->GetNextBrother();
		else return result;
	}			
	if(q==p) return t;		
	return NULL;
}

//======================================
//非递归创建树 
template <class T>
TreeNode<T>* Tree<T>::CreateTree() {
	
	LQueue<TreeNode<T>*> Q;
	
	//处理根结点
	//cout<<"输入根结点,并回车\n"; 
	cout<<"输入根结点\n" ;
	T item;
	//item=getchar();
	cin>>item;
	if(item==stop)
		return NULL;
	root=new TreeNode<T>(item);
	Q.QInsert(root);
	
	
	TreeNode<T>* node;
	TreeNode<T>* child; 
	while(!Q.IsEmpty())
	{
		
		Q.QDelete(node);
		//getchar();//过滤回车
		//cout<<"输入"<<node->GetData()<<"的子节点( 用*结尾),并回车\n"; 
		//item=getchar();
		cout<<"输入"<<node->GetData()<<"的子节点\n";
		cin>>item;
		while(item!=stop)
		{
			if(node->GetFirstChild()==NULL)
			{
				 
				child=new TreeNode<T>(item);
				node->SetFirstChild(child);
				Q.QInsert(child);
				//item=getchar();
			}
			else
			{
				TreeNode<T>*nextchild=new TreeNode<T>(item);
				child->SetNextBrother(nextchild);
				Q.QInsert(nextchild);
				child=nextchild;
				//item=getchar();
			}
			cin>>item;
		}
	}
	output();
	return root;
}


//=============================================================
//先序遍历树  
template <class T>
void Tree<T>::PreOrder( TreeNode<T>* t) const {
   if(t == NULL) {
      return;
   }
   cout<<t->GetData()<<" ";
   PreOrder(t->GetFirstChild());
   PreOrder(t->GetNextBrother());

}

template <class T>
void Tree<T>::NorePreOrder(TreeNode<T>* t) const{
    LStack<TreeNode<T>*> q;
    if(t!=NULL) {
       	q.Push(t);
   	}
    TreeNode<T> *node;
    while(!q.IsEmpty()) {
      	q.Pop(node);
      	cout<<node->GetData()<<" ";
      	if(node->GetFirstChild() != NULL) {
         	q.Push(node->GetFirstChild());
      	}
      	if(node->GetNextBrother() != NULL) {
         	q.Push(node->GetNextBrother());
      	}
   	}
}
//=========================================

//后序遍历树  
template <class T>
void Tree<T>::PostOrder( TreeNode<T>* t) const {
   	if(t == NULL) {
      	return;
   	}
   	PostOrder(t->GetFirstChild());
   	cout<<t->GetData()<<" ";
   	PostOrder(t->GetNextBrother());
}

template <class T>
void Tree<T>::NorePostOrder(TreeNode<T>* t) const{
    LStack<TreeNode<T>*> s;
    if(t!=NULL) s.Push(t); 
    TreeNode<T> *node;
    while(!s.IsEmpty()) {
    	s.Pop(node);
		if(node->GetFirstChild() != NULL) {
         	s.Push(node->GetFirstChild());
      	}
      	cout<<node->GetData()<<" ";
      	if(node->GetNextBrother() != NULL) {
         	s.Push(node->GetNextBrother());
      	}
   	}
}


//======================================
//层次遍历,非递归 
template <class T>
void Tree<T>::NoreLevelOrder(TreeNode<T>* t) const{
    LQueue<TreeNode<T>*> q;
	TreeNode<T>*s=NULL; 
	//所有firstchild都入队,brother立即访问 
    if(t!=NULL) {
       	q.QInsert(t);
   	}
    TreeNode<T> *node;
    while(s!=NULL||!q.IsEmpty())
	{
	  	while(s!=NULL)
		{
			node=s;
			s=NULL;
			cout<<node->data<<" ";
		
      		if(node->GetFirstChild() != NULL) {
         		q.QInsert(node->GetFirstChild());
      		}
      		if(node->GetNextBrother() != NULL) {
      			s=node->GetNextBrother();
			}
   		}
   		if(!q.IsEmpty())
   		{
		   	q.QDelete(node);
			 
			cout<<node->GetData()<<" ";
		
      		if(node->GetFirstChild() != NULL) {
         		q.QInsert(node->GetFirstChild());
      		}
      		if(node->GetNextBrother() != NULL) {
      			s=node->GetNextBrother();
			  }
   		}
	}
}
 
//========================================
//删除结点及其左右子树
template <class T>
void Tree<T>::Del(TreeNode<T> *t)
{
	if(t != NULL) {
    Del(t->GetFirstChild());
    Del(t->GetNextBrother());
    delete t;
	}
}	 

template <class T>
void Tree<T>::DelSubTree(TreeNode<T>* t,TreeNode<T> *p)
{
	
	if(t != NULL&&p!=NULL) {
		TreeNode<T>*q=NULL,*result=NULL;
		result=FindFather(t,p);
		if(result)//如果p父节点存在 
		{
			if(result->GetFirstChild()==p)//如果p是f的大孩子节点 
			{
				result->SetFirstChild(p->GetNextBrother());
				Del(p);
				return;	
			}	
			else//如果不是大孩子结点 
			{ 
				q=result->GetFirstChild();
				while(q->GetNextBrother()!=p)
					q=q->GetNextBrother();
				q->SetNextBrother(p->GetNextBrother());
				Del(p);
				return;
			}
		}
		else
		{
			Del(p);
			root=NULL; 
		} 	
	}

}	 

 如题,没什么好说的。。

树和森林v2.0 层次非递归创建树和森林,森林中的树不连