#include <stdio.h>
#include <conio.h>

int main()
{
  char ifname[100];
  char ofname[100];
  printf("input file>");
  scanf("%s",ifname);
  printf("output file>");
  scanf("%s",ofname);

  FILE* fin = fopen(ifname, "r");
  if( !fin ) return printf("\nError: can't open input file!\n\n");

  int f[1000], c=0,x=0,l=0,b=0;

  c=fgetc(fin);
  if(c!=' ' && c != '\n') b=1;
  do {
    c=fgetc(fin);
    if(c == ' ' || c == '\n' ) b = 1;
    if(b && (c == EOF || (c!=' ' && c != '\n'))) {x=x+1; b=0;}
    if(c == '\n' || c == EOF) {
      if( x < 8 )
        f[l] = 1;
      else
        f[l] = 0;
      printf("string #%d, words=%d, needs printing?=%d\n",l,x,f[l]);
      l=l+1;
      x = 0;
    }
  } while(c!=EOF);

  fclose(fin);

  fin = fopen(ifname, "r");
  FILE* fout = fopen(ofname, "w");

  if( !fout ) return printf("\nError: can't open output file!\n\n");

  l=0;
  while((c=fgetc(fin))!=EOF) {
    if( f[l] == 1 ) fputc(c,fout);
    if( c == '\n' ) l = l + 1;
  }

  fclose(fin);
  fclose(fout);

  printf("Done!");
  getch();

  return 0;
}