Dev - C++ - La ultima posición del vector pase a ser la primera

#include <iostream>

using namespace std;

int main(){

int tam, i, N;

cout<<"numero de casillas ";

cin>>tam;

cout<<"numero de giros ";

cin>>N;

int arr [tam];

cout<<"valores internos ";

for (i=0; i<tam; i++){

    cin>>arr[i];

}

for (i=0; i<tam; i++){

	cout<<arr[i];

}

return 0;

}

#include <iostream>

using namespace std;

int main(){

    int sz, n;

    cout << "\nNumero de casillas: ";

    cin >> sz;

    cout << "Numero de giros: ";

    cin >> n;

    int arr[sz];

    int temp[sz];

    cout << "\nValores internos:\n";

    for( int i = 0; i < sz; i++ )

        cin >> arr[i];

    cout << "\nArray:   ";

    for( int i = 0; i < sz; i++ )

        cout << arr[i] << " ";

    cout << endl;

    for( int i = 1; i <= n; i++ ) {

        cout << "\nGiro " << i << " : ";

        temp[0] = arr[sz-1];

        cout << temp[0] << " ";

        for( int j = 0 ; j < sz-1; j++ ) {

            temp[j+1] = arr[j];

            cout << temp[j+1] << " ";

        }

        for( int k = 0; k < sz; k ++ ) arr[k] = temp[k];

    }

    cout << endl;

    return 0;

}

for( int i = 0; i < sz; i++ ) cout << temp[i] << " ";