tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M u! [! N% _7 @6 h U9 b6 v0 t) X0 Z1 q
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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。公仔箱論壇( O' G: L# z2 \ U( x
- }# F: u, G" ~- {) V" Y8 v( `6 L5.39.217.76Can 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!
2 k" V' R) c; V2 s& _2 E" u+ x& q3 Xtvb 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! |