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- z/ k- E/ D) c, I0 l4 |公仔箱論壇210.6.90.151 H; Y- n+ `4 E" w$ ^, E8 ^/ n y- b7 Q6 W5 o3 O ?9 R
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! S" M5 s# x0 h; U1 c# \3 q公仔箱論壇答案: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。3 s" k# v# h+ y/ R5 R
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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!
! r2 z4 c; Y3 ]- mplease 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! |