Go4Expert - learning alogrithms

So the problem is to illustrate how the selection sort algorithm behaves on two inputs:
A={1,2,3,4,5} and A={5,4,3,2,1}. I need to state the output generated and then write a function for Big Oh notation.

The algorithm is:

Code:

#include <iostream>



using namespace std;





void printout (int A [], int n)

{

    for (int i=0; i<n; ++i)

        cout << A[i] << " ";

    cout<< '\n';

}



void selectionSort (int A[], int n)

{

    for (int k=0; k<n-1; ++k) {

        int tmp, index = k;

        for (int i=k+1; i < n; ++i)

            if (A[i] < A[index]) index=i;

        tmp= A[k]; // swap

        A[k] = A[index];

        A [index] = tmp;

        printout (A,n);

    }

}

int main ()

{

    system("pause");

    return 0; 

}

I thought i would need to insert a 5 in int A[5] for there being 5 vectors slots. I can get it to run and compile, but then nothing is outputted. What am I doing wrong?