#include <iostream>
using namespace std;

// void Swap(int list[], int a, int b)  same to the compiler
 void Swap(int * list, int a, int b) 
 { 
   int temp = list[a]; 
   list[a] = list[b]; 
   list[b] = temp; 
 } 

//void PrintArray(const int list[], int size)  same to the compiler
void PrintArray(const int* list, int size)
{
   for (int i = 0; i < size; i++)
	cout << list[i] << ' ';
   cout << '\n';
}

int main()
{
   int arr[5] = {2, 4, 6, 8, 10};
   int arr2[10] = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19};

   PrintArray(arr, 5);
   PrintArray(arr2, 10);

   Swap(arr, 3, 4);		// I would like to swap slots 3 and 4
   Swap(arr2, 4, 9);

   PrintArray(arr, 5);
   PrintArray(arr2, 10);
}