SAP智力题 -- Wires between 2 rooms

There are 103 wires connnecting two rooms, you can see 103 wire ends in each room, you are allowed to enter each room once with a multimeter, at least how many resistors(100ohm) do you need to identify the corresponding ends of each wire? What if you have 2 kinds of resistors(100ohm and 200ohm)?
----Designed by Hansen Chen in 2009( https://www.sdn.sap.com/irj/scn/forum?forumID=410 )

所有跟帖： 

• 很好玩的题 -康MM- ♀ (0 bytes) () 07/17/2009 postreply 17:14:56

• SAP now corrupts to be a puzzle provider company -DarkMessenger- ♂ (0 bytes) () 07/18/2009 postreply 13:49:37

• It must be very hard to deserve the word -Williamluo- ♂ (0 bytes) () 07/18/2009 postreply 16:57:59

• 我来开个头 -康MM- ♀ (231 bytes) () 07/20/2009 postreply 16:07:16

• It needs only a meter, and does not need any resistors. -3271963- ♀ (0 bytes) () 07/21/2009 postreply 06:32:08

• 103 -jjmmjj- ♂ (546 bytes) () 07/22/2009 postreply 05:53:09

• 102 so far (图) -wirewire- ♀ (69 bytes) () 07/22/2009 postreply 12:38:59

• 103-2 = 101 -internuts- ♂ (0 bytes) () 07/23/2009 postreply 08:25:00

• 还要继续努力。提示 -康MM- ♀ (38 bytes) () 07/24/2009 postreply 03:30:18

• 回复：SAP智力题 -- Wires between 2 rooms -jimmyw999- ♂ (0 bytes) () 07/24/2009 postreply 09:20:34

• If all wires were marked before deployed, you don't need to iden -jimmyw999- ♂ (0 bytes) () 07/24/2009 postreply 09:23:15

• 12 groups, need 92? -t_zhang- ♀ (0 bytes) () 07/24/2009 postreply 23:33:23

• 91 :) -康MM- ♀ (0 bytes) () 07/25/2009 postreply 18:04:43

• 91 and 83 -wskwntei- ♂ (0 bytes) () 07/25/2009 postreply 22:19:59