二级题库（25）

void fun(char  *filename)
{ FILE  *fp;      int  i, j;
  STU  s[N], t;
/found/
  fp = fopen(filename, "rb");
  fread(s, sizeof(STU), N, fp);
  fclose(fp);
  for (i=0; i<N-1; i++)
    for (j=i+1; j<N; j++)
/found/
      if (s[i].sno > s[j].sno)
      {  t = s[i];  s[i] = s[j];  s[j] = t;  }
  fp = fopen(filename, "wb");
/found/
  fwrite(s, sizeof(STU), N, fp); 
  fclose(fp);
}


void  fun (  char  s[], int  n )
{
   char  a[80] , *p;
   int  i;
/found/
   p=s;
   for(i=0; i<n; i++)  a[i]='*';
   do
   {  a[i]=*p;
      i++;
   }
/found/
   while(*p++);
   a[i]=0;
   strcpy(s,a);
}


void fun(int *a,  int *b)
{
	int i,j;
	for(j=0;j<M;j++)
	b[j]=0;
	for(i=0;i<N;i++)
	if(a[i]>=100)
	b[10]++;
	else
	b[a[i]/10]++;  
}