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Re:用double可以过的

Posted by 574394335 at 2008-04-08 17:39:35 on Problem 2350
In Reply To:用double可以过的 Posted by:linmeng at 2005-07-17 09:02:12
> #include <iostream.h>
> #include <stdio.h>
> int c;
> long n;
> long a[1000];
> int main()
>  {
>   cin>>c;
>   while (c)
>    {
>     c--;
>     cin>>n;
>     int i;
>     long sum=0;
>     for (i=1;i<=n;i++)
>      {
>       cin>>a[i];
>       sum+=a[i];
>      }
>     double xb=(double)sum/(double)n;
>     long t=0;
>     for (i=1;i<=n;i++)
>      {
>       if (a[i]>xb) t++;
>      }
>     xb=(double)t/(double)n*100;
>     printf("%.3lf%c\n",xb,'%'); 
>    }
>   return 0;
>  }
>     

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