jar

the first man to set the lamp is "off", the others will  say the lampis "off" , then every one  can sure the lamp is "off" , so  100 men have been to the gardon.

jar

I am right!   from 2009-1-6 , I got it!

jar

tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M  u! [! N% _7 @
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答案：选一个囚犯出来负责关灯，其余的负责开灯，而且每人只能开一次，当这个囚犯关够99次的时候，就知道所有的囚犯都来过院子了。tvb now,tvbnow,bttvb/ V- r8 c9 X. `3 P* s
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Can you make sure that is only 2 or 4 or 6......... to open the lamp? otherwise, the others do not know what station of the lamp!  
4 y: u; a# B- utvb now,tvbnow,bttvbplease see:   jar  2009-01-07 my option:   all can see and say the lamp is "on" that can sure everyboby have been to the gardon!

jar

You make a wrong answer! please give me your money!
, d3 A" I- B1 k' }( Y9 Y8 S   I want to up grade.  I give you my right answers.!