Array input, output, sum, min, max, avg

#include <iostream>
#define MAXN 100
using namespace std;

void input(int &number, int a[]) {
    cin >> number;
    for(int i = 0; i < number; i++) {
        cin >> a[i];
    }
}

void output(int number, int a[]) {
    for(int i = 0; i < number; i++) {
        cout << a[i] << " ";
    }
}

int sum(int number, int a[]) {
    int total = 0;
    for(int i = 0; i < number; i++) {
        total += a[i];
    }
    return total;
}

int mini(int number, int a[]) {
    int minimum = a[0];
    for(int i = 0; i < number; i++) {
        if(a[i]<minimum) minimum = a[i];
    }
    return minimum;
}

int maxi(int number, int a[]) {
    int maximum = a[0];
    for(int i = 0; i < number; i++) {
        if(a[i]>maximum) maximum = a[i];
    }
    return maximum;
}

double avg(int number, int a[]) {
    return (double) sum(number, a) / number;
}

int main() {
    int n, a[MAXN];
    input(n, a);
    output(n, a);

    cout << "Sum: " << sum(n, a) << endl;
    cout << "Min: " << mini(n, a) << endl;
    cout << "Max: " << maxi(n, a) << endl;
    cout << "Avg: " << avg(n, a) << endl;
    return 0;
}