#include?
#include?
#include?

/*-------------------------------------------------------------------------------------------------------------------*/
struct?HtNode???????????????????????????/*哈夫曼樹結點的結構*/
{
	int?ww;								/*權值*/
	int?parentllinkrlinkrlparent;	/*rlparent是記錄該結點是父結點的左孩子還是右孩子*/
	char?a;	????????????????????????????/*記錄編碼字符的信息*/
};
typedef?struct?HtNode?*?PHtNode;
struct?HtTree							/*哈夫曼樹結構*/
{				
	int?m;								/*外部結點的個數*/
	int?root;							/*哈夫曼樹在數組中的下標*/
	struct?HtNode?*ht;					/*存放2*m-1個結點的數組*/
};
typedef?struct?HtTree?*?PHtTree;		/*哈夫曼樹類型的指針類型*/



/*-------------------------------------------------------------------------------------------------------------------*/



/************************************************************************/
/*函數的功能：創建哈夫曼樹，將電文編碼??????????????????????????????????*/
/*函數的參數：1、哈夫曼樹葉子結點的個數??2、權值的數組?3、編碼字符的信息*/
/*函數的返回值：返回指向數組的指針??????????????????????????????????????*/
/************************************************************************/
PHtTree?huffman（int?mint?*wchar?*p）??????????????/*構造具有m個外部結點的哈夫曼樹*/
{
	PHtTree?pht;
	int?ijx1x2m1m2;
	pht=（PHtTree）malloc（sizeof（struct?HtTree））;	???/*分配哈夫曼樹空間*/
	if（pht==NULL）
	{
		printf（“Out?of?space!!\n“）;
		return?pht;
	}
	pht->ht=（struct?HtNode?*）malloc（sizeof（struct?HtNode）*（2*m-1））;?/*分配ht數組空間*/
	if（pht->ht==NULL）
	{
		printf（“Out?of?space!!\n“）;
		return?pht;
	}
	
	for（i=0;i<2*m-1;i++）					/*置ht數組初態*/
	{
		pht->ht[i].llink=-1;
		pht->ht[i].rlink=-1;
		pht->ht[i].parent=-1;
		pht->ht[i].rlparent=-1;
		if（i		{
			pht->ht[i].ww=w[i];??????/*各點的權值*/
			pht->ht[i].a=p[i];???????/*各點的字符信息*/
		}
		else
			pht->ht[i].ww=-1;????????/*剩余的結點賦值為-1*/
	}
	
	
	for（i=0;i	{
		m1=m2=32767;				/*相關變量賦初值*/
		x1=x2=-1;
		for（j=0;j		{
			if（pht->ht[j].wwht[j].parent==-1）	/*x1中存放最小權的無父結點的結點下標*/
			{
				m2=m1;									/*x2中存放第二小權的無父結點的結點下標*/
				x2=x1;
				m1=pht->ht[j].ww;
				x1=j;
			}
			else?if（pht->ht[j].wwht[j].parent==-1）
			{
				m2=pht->ht[j].ww;
				x2=j;
			}
		}
		
		pht->ht[x1].parent=m+i;					/*構造內部結點*/
		pht->ht[x1].rlparent=0;?????????????????/*該結點是父結點的左孩子*/
		pht->ht[x2].parent=m+i;?????????????????/*該結點的父結點的位置，即數組下標*/
		pht->ht[x2].rlparent=1;					/*該結點是父結點的右孩子*/
		pht->ht[m+i].ww=m1+m2;					/*父結點的權值是左右孩子的權值之和*/
		pht->ht[m+i].llink=x1;					/*將父結點的llink的值賦上左孩子所在的數組下標*/
		pht->ht[m+i].rlink=x2;					/*將父結點的rlink的值賦上右孩子所在的數組下標*/
	}
	pht->root=2*m-2;????????????????????????????/*根結點的位置在數組的最后一個元素*/
	printf（“哈夫曼樹創建成功!!\n哈夫曼樹在數組中的存儲形式為：\n“）;????????????????????????????????
	for（i=0;i<2*m-1;i++）???????????????????????/*輸出哈夫曼樹中的數組所保存的權值*/
	{
		printf（“??%d?“pht->ht[i]）;
	}
	printf（“\n編碼成功!\n“）;
	return?pht;????????????????????????????????????????????????????
}
/*--------------------------------------------

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????634880??2010-07-26?18:47??哈夫曼樹.doc

?????文件??????32837??2010-07-14?12:16??哈夫曼樹\Debug\huffamn.obj

?????文件?????184772??2010-07-13?12:59??哈夫曼樹\Debug\huffamn.pch

?????文件?????492544??2010-07-13?22:20??哈夫曼樹\Debug\huffamn.pdb

?????文件???????2560??2010-07-13?13:10??哈夫曼樹\Debug\huffamn.suo

?????文件??????33792??2010-07-14?12:16??哈夫曼樹\Debug\vc60.idb

?????文件??????53248??2010-07-14?12:16??哈夫曼樹\Debug\vc60.pdb

?????文件?????204869??2010-07-14?12:16??哈夫曼樹\Debug\哈夫曼樹.exe

?????文件?????225368??2010-07-14?12:16??哈夫曼樹\Debug\哈夫曼樹.ilk

?????文件?????184772??2010-07-13?12:39??哈夫曼樹\Debug\哈夫曼樹.pch

?????文件?????549888??2010-07-14?12:16??哈夫曼樹\Debug\哈夫曼樹.pdb

?????文件???????3072??2010-07-14?08:00??哈夫曼樹\Debug\哈夫曼樹.suo

?????文件?????????27??2010-07-13?22:06??哈夫曼樹\dianwen.txt

?????文件??????20444??2010-07-14?08:12??哈夫曼樹\huffamn.c

?????文件???????3411??2010-07-14?08:06??哈夫曼樹\huffamn.dsp

?????文件??????50176??2010-07-14?08:10??哈夫曼樹\huffamn.ncb

?????文件??????48640??2010-07-14?08:06??哈夫曼樹\huffamn.opt

?????文件??????????0??2010-07-14?08:10??哈夫曼樹\huffamn.plg

?????文件???????4305??2010-07-11?17:01??哈夫曼樹\哈夫曼樹.dsp

?????文件????????524??2010-07-11?16:12??哈夫曼樹\哈夫曼樹.dsw

?????文件??????50176??2010-07-14?13:43??哈夫曼樹\哈夫曼樹.ncb

?????文件??????48640??2010-07-14?13:43??哈夫曼樹\哈夫曼樹.opt

?????文件????????898??2010-07-14?12:16??哈夫曼樹\哈夫曼樹.plg

????..A..H.??????6144??2010-07-11?20:16??哈夫曼樹\哈夫曼樹.suo

?????目錄??????????0??2010-07-14?08:11??哈夫曼樹\Debug

?????目錄??????????0??2010-07-14?13:43??哈夫曼樹

-----------?---------??----------?-----??----

??????????????2835987????????????????????26