根据给定单词的出现频度，构造一棵哈夫曼树，并输出对应的哈夫曼编码（C语言实现）。 单词 A B C D E F G H 出现频度 9 5 3 7 6 2 1 1

好的，关于你的问题，我可以提供以下代码示例以构造哈夫曼树并输出哈夫曼编码（使用C语言）：

#include<stdio.h> 
#include<malloc.h> 
#define MAXBIT      100 
#define MAXVALUE  10000 
#define MAXLEAF     30 
#define MAXNODE    MAXLEAF*2 -1 

typedef struct  
{  
    float weight;  
    int parent;  
    int lchild;   
    int rchild;   
    char code[MAXBIT];  
} HNodeType;  

void HuffmanTree(HNodeType HuffNode[MAXNODE], int n)  
{  
    int i,j,k;  
    float min1,min2;  
    int x1,x2;   

    for (i=0;i<2*n-1;i++)  
    {  
        HuffNode[i].weight=0;  
        HuffNode[i].parent=-1;  
        HuffNode[i].lchild=-1;  
        HuffNode[i].rchild=-1;  
    }  

    for (i=0;i<n;i++)  
    {  
        printf("请输入字母：");  
        fflush(stdin);  
        scanf("%c",&HuffNode[i]. code[0]);  
        printf("请输入权重：");  
        fflush(stdin);  
        scanf("%f",&HuffNode[i]. weight); 
    }

    for (i=0;i<n-1;i++)  
    {  
        min1=min2=MAXVALUE;  
        x1=x2=0;  
        for (j=0;j<n+i;j++)  
        {  
            if (HuffNode[j].weight<min1 && HuffNode[j].parent==-1)  
            {  
                min2=min1;  
                x2=x1;  
                min1=HuffNode[j].weight;  
                x1=j;  
            }  
            else if (HuffNode[j].weight<min2 && HuffNode[j].parent==-1)  
            {  
                min2=HuffNode[j].weight;  
                x2=j;  
            }  
        }  

        HuffNode[x1].parent=n+i;  
        HuffNode[x2].parent=n+i;  
        HuffNode[n+i].weight=HuffNode[x1].weight+HuffNode[x2].weight;  
        HuffNode[n+i].lchild=x1;  
        HuffNode[n+i].rchild=x2;  
    } 
}  

void HuffmanCode(HNodeType HuffNode[MAXNODE], int n)  
{  
    int i,j,c,p;  
    char cd[MAXBIT];  
    int start;  

    cd[n-1]='\0';  
    for (i=0;i<n;i++)  
    {  
        start=n-1;  
        for (c=i,p=HuffNode[i].parent;p!=-1;c=p,p=HuffNode[p].parent)  
        {  
            if (HuffNode[p].lchild==c)  
                cd[--start]='0';  
            else 
                cd[--start]='1';  
        }  
        strcpy(HuffNode[i].code,&cd[start]);  
    }  
}  

int main()  
{  
    HNodeType HuffNode[MAXNODE];  
    int n;  
    printf("请输入叶节点个数n：");  
    scanf("%d",&n);  
    HuffmanTree(HuffNode,n);  
    HuffmanCode(HuffNode,n);  

    printf("\n\n\n哈夫曼树如下所示：\n");  
    for (int i=0; i<2*n-1; i++)  
    {  
        printf("%d %c %f %d %d %d\n",i+1,HuffNode[i]. code[0],HuffNode[i].weight,  
                 HuffNode[i]. parent,HuffNode[i].lchild,HuffNode[i].rchild);  
    }  

    printf("\n\n\n哈夫曼编码如下所示：\n");  
    for (int i=0; i<n; i++)  
    {  
        printf("%c的哈夫曼编码为：%s\n",HuffNode[i]. code[0],HuffNode[i].code);  
    }  
    return 0;  
}  

希望这可以回答你的问题。如果你有任何其他问题，可以随时问我！