#include <stdio.h>

void main (void) {
  int i;
  int nx,ny,nz,n;
  float *fdata;
  unsigned char *cdata;
  char filenamein[200], filenameou[200],str[200];
  FILE *f1, *f2;

  printf("\n enter cfb file name:");scanf("%s",filenamein);
  printf("\n enter volume file name:");scanf("%s",filenameou);
  
  f1=fopen(filenamein,"r");if (f1==NULL) {printf("\n input file wrong");exit(0);}
  f2=fopen(filenameou,"w");

  fgets(str,200,f1);
  nx=atoi(strtok(str," "));     
  ny=atoi(strtok(NULL," "));     
  nz=atoi(strtok(NULL," ")); 
   

  n=nx*ny*nz;
  printf("\n The no of elements:%d",n);

  fdata=(float *)calloc(n,sizeof(float));
  fread(fdata,sizeof(float),n,f1);		       

  cdata=(unsigned char *)calloc(n,sizeof(unsigned char));
  for(i=0;i<n;i++) cdata[i]=(unsigned char)fdata[i];
  fprintf(f2,"%d %d %d \n",nx,ny,nz);
  fwrite(cdata,n,sizeof(unsigned char),f2);
  
  fclose(f1);  
  fclose(f2);
}