POJ 2350

#include<iostream>
#include<stdio.h>
#include<iomanip>
using namespace std;
int main()
{
    //freopen("acm.acm","r",stdin);
    int * score;
    int i;
    double sum;
    int k;
    int num;
    int anum;
    cin>>anum;
    while(anum--)
    {
    cin>>num;
    sum = 0;
    k = 0;
    score = new int[num];
    for(i = 0 ; i < num ; i++)
    {
        cin>>score[i];
        sum += score[i];
    }
    sum = sum/double(num);
    for(i = 0; i < num; i ++)
    {
        if(score[i]>sum)
            k++;
    }
    cout<<setiosflags(ios::fixed)<<setprecision(3)<<double(k)/double(num)*100<<"%"<<endl;
    }
}