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破译密码

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楼主
发表于 2005-2-24 15:42:12 | 显示全部楼层

回复:破译密码


Anything special will happen on that day?www.ddhw.com

 
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沙发
发表于 2005-2-24 21:49:44 | 显示全部楼层

回复:I am glad you come back[@};-], how was your tri


Thanks. It's great.
I like most of what I saw. I have made some young friends in the local office. Smart, intelligent, enthusiastic,.. a great generation.www.ddhw.com

 
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板凳
发表于 2005-2-25 00:07:48 | 显示全部楼层

回复:能讲一下分析过程吗?[:)]


There are 3 kinds of symbols, *, _, and blank, and the *'s and _'s always form groups of five with a single or double blanks in between. I had ruled out the possibility of each group represents a word (that would be beyond my ability to decode them anyway), and since a 5 digit binary number can go up to 31, so I had a hunch that each group represents a different letter. When I got the 1st word “look”, I knew I got it right. (if the mapping rule is a little more complicated than simple sequential correspondence, I would probably give up after a few trials. )

www.ddhw.com

 
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