考你一个难的（也很简单）:

用两个2算出5来。不能用round，floor，或ceiling

所有跟帖： 

• 两个2? -bearsback- ♂ (0 bytes) () 01/10/2010 postreply 17:36:55

• 回复：考你一个难的（也很简单）: -bearsback- ♂ (22 bytes) () 01/10/2010 postreply 17:37:48

• 可以是任何操作，不局限在+－＊／ -戏雨飞鹰- ♀ (0 bytes) () 01/10/2010 postreply 17:40:16

• 回复：可以是任何操作，不局限在+－＊／ -bearsback- ♂ (64 bytes) () 01/10/2010 postreply 17:42:20

• wow!!!!!!!!!!!!!!!!!!!!!!!!! 佩服死了！ -戏雨飞鹰- ♀ (0 bytes) () 01/10/2010 postreply 17:44:26

• because of your hint (any operation) -bearsback- ♂ (0 bytes) () 01/10/2010 postreply 17:45:51

• 天才！我是看答案才知道的。88~~ -戏雨飞鹰- ♀ (0 bytes) () 01/10/2010 postreply 17:49:44

• sweetie, love makes me -bearsback- ♂ (70 bytes) () 01/10/2010 postreply 17:53:37

• 这是IBM一月（趣味智力）：二二得五 -戏雨飞鹰- ♀ (120 bytes) () 01/10/2010 postreply 18:01:10

• sweetie, ibm, hp, apple etc are not my type of company -bearsback- ♂ (23 bytes) () 01/10/2010 postreply 18:07:57

• haha，good one！"company"用的绝妙。 -戏雨飞鹰- ♀ (0 bytes) () 01/10/2010 postreply 18:31:11

• 里面的这个答案有点勉强：用exp运算 -戏雨飞鹰- ♀ (66 bytes) () 01/10/2010 postreply 19:05:36

• 回复：里面的这个答案有点勉强：用exp运算 -bearsback- ♂ (34 bytes) () 01/10/2010 postreply 19:21:07

• i'm wrong. the value of exp(log2) id not 10:) -戏雨飞鹰- ♀ (0 bytes) () 01/10/2010 postreply 19:29:45

• sweetie, your thinking is inspiring though the value is not ten -bearsback- ♂ (0 bytes) () 01/10/2010 postreply 20:16:07

• no, I copied the answer from 脑坛to show you. after posting -戏雨飞鹰- ♀ (38 bytes) () 01/10/2010 postreply 20:21:28

• oops, l meant left shift -bearsback- ♂ (52 bytes) () 01/10/2010 postreply 17:45:07

• 没关系，左右两个坑都要用：）：） -戏雨飞鹰- ♀ (0 bytes) () 01/10/2010 postreply 17:52:01

• hahhaha, that 坑 is the most important -bearsback- ♂ (17 bytes) () 01/10/2010 postreply 17:55:47

• 需要hint和话，说一声。 -戏雨飞鹰- ♀ (0 bytes) () 01/10/2010 postreply 17:43:08

• 密码，这个题目对你来讲太简单了。 -戏雨飞鹰- ♀ (0 bytes) () 01/10/2010 postreply 17:37:56