void xyz(int a[], int n) {

if (n > 1) {

xyz(a, n-1);

int t = a[n-1];

for (int i = n-2; i>=0; i--)

a[i+1] = a[i];

a[0] = t;

}

}

I am supposed to tell what the above block of code is doing, but I'm really not sure. All I know is that there is a recursive call and it seems to get more complicated after that.