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 @
0 B4 }0 u* w, ^0 `! ]210.6.90.151  H; Y- n+ `4 E" w$ ^, E& D! W; X7 r& D7 j
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6 T5 P2 }: m) a! ~) h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。
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- g8 \* m( ]& z# ^$ Stvb now,tvbnow,bttvbCan 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 T, s8 m$ M/ dtvb 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! 5.39.217.769 n  s6 w% H+ M3 S- Y
   I want to up grade.  I give you my right answers.!