数组函数.希望你能澄清一下

我有一个关于学校实验室作业的问题，我希望有人能帮我澄清一下。我不是在寻求答案，只是一种方法。我一直不能完全理解书中的解释。

问题:在程序中，编写一个接受三个参数的函数:数组、数组的大小和数字n。假设数组包含整数。函数应该显示数组中所有大于n的数

这是我现在的记录:

/*
Programmer: Reilly Parker
Program Name: Lab14_LargerThanN.cpp
Date: 10/28/2016
Description: Displays values of a static array that are greater than a user inputted value.
Version: 1.0
*/
#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
void arrayFunction(int[], int, int); // Prototype for arrayFunction. int[] = array, int = size, int = n
int main()
{  
    int n; // Initialize user inputted value "n"
    cout << "Enter Value:" << endl;
    cin >> n;
    const int size = 20; // Constant array size of 20 integers.
    int arrayNumbers[size] = {5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24}; // 20 assigned values for the array
    arrayFunction(arrayNumbers, size, n); // Call function
    return 0;
}    
/*  Description of code below:
The For statement scans each variable, if the array values are greater than the 
variable "n" inputted by the user the output is only those values greater than "n."
*/
void arrayFunction(int arrayN[], int arrayS, int number) // Function Definiton
{
    for (int i=0; i<arrayS; i++) 
    {    
        if (arrayN[i] > number)
        {
        cout << arrayN[i] << " ";
        cout << endl;
        }
    }    
}