求10个数平均值(数组)

#include <iostream>
using namespace std;
int main()
{
 float average(float array[]);
 float a[10],m;
 cout<<"please enter 10 numbers:"<<endl;
 for(int i=0;i<10;++i)
 {  cin>>a[i];
 }
 m=average(a);
 cout<<"the average is "<<m<<endl;
 return 0;
}
float average(float array[])
{ float sum=array[0],f;
  for(int i=1;i<10;++i)
  { sum=sum+array[i];
  }
  f=sum/10;
  return f;
}