Having trouble with arrays/ functions

[Thurgo]

Trying to use an array and find perfect numbers in it. I have code I wrote using input value but I have no idea where to start to use an array. Array should be 8000 in size, I will update as I go along as well. Any tips would be amazing

  

#include <iostream>
#include <cmath>
using namespace std;
void showPerfect(int, int, int);
void isPerfect(int);
int main ()
{
    int num;
    cout << "Enter a number to find if it is perfect!";
    cin >> num;
    isPerfect(num);


return 0;
}

void isPerfect(int value1)
{
    int sum=0, i;
    for (i=1; i<=(value1/2);i++)
    {
        if(value1 % i==0)
        {
            sum = sum + i;
        }

    }
    showPerfect(sum, i, value1);
}

void showPerfect(int num1, int num2, int num3)
{
    if (num1 == num3)
    {
        cout << num1 << " Is perfect";
    }
    else
    {
        cout << num1 << " Is not perfect";
    }
}

[coder777]

What should be store in this array?

Generally an array looks like this:

int a[8000] = {0}; //  = {0} sets the whole array to 0

a[0] = 1; // This sets the first element to 1 

Note that an index within an array starts with 0. Hence indexes 0...7999 are valid.