zoj1915--------------------Above Average

It is said that 90% of frosh expect to be above average in their class. You are to provide a reality check.

Input
The first line of standard input contains an integer C, the number of test cases. C data sets follow. Each data set begins with an integer, N, the number of people in the class (1 <=
N <= 1000). N integers follow, separated by spaces or newlines, each giving the final grade (an integer between 0 and 100) of a student in the class.

Output
For each case you are to output a line giving the percentage of students whose grade is above average, rounded to 3 decimal places.

Sample Input

5

5 50 50 70 80 100

7 100 95 90 80 70 60 50

3 70 90 80

3 70 90 81

9 100 99 98 97 96 95 94 93 91


Sample Output

40.000%

57.143%

33.333%

66.667%

55.556%

代码：

#include <iostream>
#include <cstdio>
using namespace std;

int main()
{
int T;
cin>>T;
while(T--)
{
int n;
cin>>n;
int grade
;
double ver=0;
double per;
int count=0;
for(int i=0; i<n; i++)
{
cin>>grade[i];
ver=ver+grade[i];
}
ver=ver/n;
for(int i=0; i<n;i++)
{
if(grade[i]>ver)
count++;
}
per=double(count)/n*100;
printf("%.3lf",per);
cout<<"%"<<endl;
}
return 0;

}