#include <iostream>

using namespace std;

void print(int* p);
int sum(int* p);
double average(int* p);
int maximum(int* p);

int main()
{
    int a[] = {2,11,3,5,7};
    print(a);
    cout << "sum = " << sum(a) << endl;
    cout << "average = " << average(a) << endl;
    cout << "maximum = " << maximum(a) << endl;
}

void print(int* p)
{
    for (int i = 0; i < 5; i++)
        cout << p[i] << "  ";
    cout << endl;
}

int sum(int* p)
{
    int total = 0;
    for (int i = 0; i < 5; i++)
        total += p[i];
    return total;
}

double average(int* p)
{
    return sum(p)/5.0;
}

int maximum(int* p)
{
    int max = 0;
    for (int i = 0; i < 5; i++)
        if (p[i] > max) max = p[i];
    return max;
}