float fun(int a[],int n,int *max,int *min)
{
int i;
float sum=0,avg;
*max=*min=a[0];
for(i=0;i<n;i++)
{
sum+=a[i];
if(a[i]>*max)
*max=a[i];
if(a[i]<*min)
*min=a[i];
}
avg=sum/n;
return avg;
}