二级题库（24）

double f2(double  x, double  y)
{  return  x*y;  }
/found/
double fun(int  i, double  x, double  y)
{ if (i==1)
/found/
    return f1(x);
  else
/found/
    return  f2(x, y);
}


/found/
char *fun(char *s,char *t)
{
  int s1=0,t1=0;
  char *ss,*tt;
  ss=s;
  tt=t;
  while(*ss)
  {
	s1++;
/found/
	(ss++)++;
  }
    while(*tt)
  {
	t1++;
/found/
	(tt++)++;
  }
  if(t1>s1)
	return t;
  else
	return s;
}


void fun (char  *w,int  m)
{
	int i,j;
	char t;
	for(i=1;i<=m;i++)
	{
		t=w[0];
		for(j=1;w[j]!='\0';j++)
		w[j-1]=w[j];
		w[j-1]=t;
	  }  
}