codeblocks 에서 컴 파일 이 실 행 됩 니 다.
#include
#include
#include
typedef struct{
int weight;
int parent,lchild,rchild;
}HTNode,*HuffmanTree;
typedef char **HuffmanCode;
int min1(HuffmanTree t,int i)
{// VOID select
int j,flag;
int k=10000;// K
for(j=1;j<=i;j++)
if(t[j].weight*s2)
{
j=*s1;
*s1=*s2;
*s2=j;
}
}
//
void CreateHuffmanTree(HuffmanTree *HT,int *w,int n){
int i,s1,s2,k,f;
if(n<=1) printf("error");
int m;
m=2*n-1;
HTNode *p;
*HT=(HuffmanTree)malloc((m+1)*sizeof(HTNode));
for(p=*HT+1,i=1;i<=n;i++,p++,w++){
p->weight=*w;
p->parent=0;
p->lchild=0;
p->rchild=0;
}
for(;i<=m;i++,p++){
p->weight=0;
p->parent=0;
p->lchild=0;
p->rchild=0;
}
// HT[1...i-1] parent 0 , s1,s2;
for(i=n+1;i<=m;i++){
printf("1111111");
Select(*HT,i-1,&s1,&s2);
printf("222222");
HT[s1]->parent = i; printf("333333");HT[s2]->parent = i;
HT[i]->lchild = s1; HT[i]->rchild = s2;
HT[i]->weight = HT[s1]->weight + HT[s2]->weight;
}
}
// Huffman
void HuffmanTreeCode(HuffmanTree *HT,HuffmanCode *HC,int n){
int start,c,i,f;
char *cd;
*HC=(HuffmanCode)malloc((n+1)*sizeof(char *));
cd=(char *)malloc(n*sizeof(char));
cd[n-1]='\0';
for(i=1;i<=n;i++){
start =n-1;
for(c=i,f=HT[i]->parent;f!=0;c=f,f=HT[f]->parent){
if(HT[f]->lchild==c) cd[--start]='0';
else cd[--start]='1';
}
*HC[i]=(char *)malloc((n-start)*sizeof(char));
strcpy(*HC[i],&cd[start]);
}
free(cd);
//
printf("number\t\tweight\t\tCode
");
for(i=1;i<=n;i++){
printf("%d\t\t%d\t\t%d
",i,HT[i]->weight,HC[i]);
}
}
void ShowHuffmanTree(HuffmanTree HT,int n){
int i;
printf(" :
");
printf("number\t\tweight\t\tparent\t\tlchild\t\trchild
");
for(i=1;i<=2*n-1;i++){
printf("%d\t\t%d\t\t%d\t\t%d\t\t%d
",i,HT[i].weight,HT[i].parent,HT[i].lchild,HT[i].rchild);
}
}
void main(){
int i,n;
int *w;
printf(" n(n>1):");
scanf("%d",&n);
w=(int *)malloc((n+1)*sizeof(int));
w[0]=0;
printf(" :");
for(i=1;i<=n;i++){
scanf("%d",&w[i]);
}
HuffmanCode HC=NULL;
HuffmanTree HT=NULL;
CreateHuffmanTree(&HT,w,n);
HuffmanTreeCode(&HT,&HC,n);
ShowHuffmanTree(HT,n);
}