SDUT 1081 Above Average

题目描述

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

输入

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.

输出

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

示例输入

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

示例输出

40.000%
57.143%
33.333%
66.667%
55.556%

#include <stdio.h>
int main()
{
int b,n,i,j,temp,k;
float sum,q;
int a[1001];
scanf("%d",&b);
for(k=1;k<=b;k++)
{
sum=0;
q=0;
temp=0;
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%d",&a[i]);
sum+=a[i];
}
q=sum/n;
for(i=1;i<=n;i++)
{
if(a[i]>q)
temp++;
}
printf("%.3f%c\n",(float)temp/(float)n*100,'%');
}
return 0;
}