[解题报告]10370 - Above Average

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

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. 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

Output for Sample Input

40.000%
57.143%
33.333%
66.667%
55.556%



水题不解释了

#include<stdio.h>
int main()
{
  int C, N;
  int i,j;
  float score[1005], average, percent;
  while(scanf("%d",&C)!=EOF )
  {
    for(i=1;i<=C;i++)
    {
      scanf("%d",&N);
      average=0.0;
      for(j=0;j<N;j++)
      {
        scanf("%f",&score[j]);
        average+=score[j];
      }
      average/=N;
      percent=0.0;
      for(j=0;j<N;j++)
      {
        if(score[j]>average) percent++;
      }
      percent/= N;
      percent*=100;
      printf("%.3f%%\n",percent);
    }
  }
  return 0;
}