arrays left rotation hackerrank solution

1int n,d;
2    cin>>n;
3    int a[n];
4    cin>>d;
5    for(int i=0;i<n;cin>>a[i],i++);
6    d=d%n;
7    for(int i=d;i<n;i++)
8        cout<<a[i]<<" ";
9    
10    for(int i=0;i<d;i++)
11         cout<<a[i]<<" ";
12    return 0;
13