UVA 10370

http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&category=24&problem=1311&mosmsg=Submission+received+with+ID+11405247

给出几组数据，算出这些数据中高过平均数的个数所占的百分比，保留三位小数

#include<stdio.h>
int main()
{
 int i,c;
 double x[1010],sum,avr,n,ans;
 scanf("%d",&c);
 while(c--)
      {
       scanf("%lf",&n);
       sum=0;
       ans=0;
       for(i=0;i<n;i++)
          {
           scanf("%lf",&x[i]);
           sum+=x[i];
          }
       avr=sum/n;
       for(i=0;i<n;i++)
          {
           if(x[i]>avr)
             ans++;
          }
       printf("%.3lf%%\n",(ans/n)*100);
      }
 return 0;
}