1. Bob Smith, 7 Station St, Wotahole, NJ
2. Greg Jones, 3 Railway Pde, Boot Hill, KA
3. Allan Brown, 27 Carriage Court, Washington, DC (home)
4. Allan Brown, 1066 Hastings Street, Washington, DC (work)
5.

1. Allan Brown, 3
2. Allan Brown, 4
3. Greg Jones, 2
4. Bob Smith, 1

+-----------+----------------+------------+
| Iteration | Indexed method | Old method |
+-----------+----------------+------------+
|    0      |   1024         |    1024    |
|    1      |    512         |    1023    |
|    2      |    256         |    1022    |
|    3      |    128         |    1021    |
|    4      |     64         |    1020    |
|    5      |     32         |    1019    |
|    6      |     16         |    1018    |
|    7      |      8         |    1017    |
|    8      |      4         |    1016    |
|    9      |      2         |    1015    |
|   10      |      1         |    1014    |
+-----------+----------------+------------+