10370 - Above Average

#include<iostream>
#include<cstring>
#include<cstdlib>
#include<cstdio>
#include<cmath>
#include<string>
using namespace std;
int main()
{
#ifdef test
freopen("sample.txt","r",stdin);
#endif
int num,c,count;
double a[1000+2],sum;
scanf("%d",&c);
while(c--)
{
scanf("%d",&num);
sum=0;
count=0;
for(int i=0; i<num; i++)
{
scanf("%lf",&a[i]);
sum+=a[i];
}
sum/=(double)num;
for(int i=0;i<num;i++)
if(a[i]>sum)
count++;
printf("%.3lf%%\n",(double)count/(double)num*100);
}
return 0;
}