C++ primer plus第六版课后编程练习答案：7.2

#define  _CRT_SECURE_NO_WARNINGS
#include <iostream>

void golf_score(int score[]);
void show_score(const int* show_score);
double average_score(const int* caculate_score);
int i;

int main()
{
double average;
using namespace std;

int pscore[10];

golf_score(pscore);
show_score(pscore);
cout << endl;
average = average_score(pscore);
cout << "The average is: " << average << endl;
}

void golf_score(int score[])
{
for (i = 0; i < 10; i++)
{
std::cin >> score[i];
if (std::cin.fail())
break;
}
}

void show_score(const int* show_score)
{
std::cout << "The score are: ";
for (int k = 0; k < i; k++)
std::cout << show_score[k] << ',';
}

double average_score(const int* caculate_score)
{
int sum = 0;
for (int k = 0; k < i; k++)
sum += caculate_score[k];
return (sum / i);
}