poj2350

简单题

#include <iostream>

#include <cstdlib>

#include <cstdio>

#include <cstring>

using namespace std;



#define maxn 1005



int n;

int f[maxn];

double average;



void input()

{

    int sum = 0;

    scanf("%d", &n);

    for (int i = 0; i < n; i++)

    {

        scanf("%d", &f[i]);

        sum += f[i];

    }

    average = sum * 1.0 / n;

}



double work()

{

    int num = 0;

    for (int i = 0; i < n; i++)

        if (f[i] > average)

            num++;

    return num * 100.0 / n;

}



int main()

{

    int t;

    scanf("%d", &t);

    while (t--)

    {

        input();

        printf("%.3f%%\n", work());

    }

    return 0;

}

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