习题3-42

#include <stdio.h>
#include <stdlib.h>
double Count (double a[],int n)
{
int i;
double sum=0;
double aver;
for(i=0;i<n;i++ )
{
sum=sum+a[i];
}
aver=sum/n;
return aver;
}
int main()
{
int x;
int j;
int y=0;
double* num=NULL;
num=(double *)malloc (sizeof(double)*x);
printf("请输入数组中的元素个数:\n");
scanf("%d",&x);
printf("请输入%d个数:\n",x);
for(j=0;j<x;j++)
{
scanf("%f",&num[j]);
}
for(j=0;j<x;j++)
{
if(num[j]>=Count(num,x))
{
y=y+1;
}
}
printf("大于等于平均值的个数为:%d\n",y);
return 0;
}