tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M u! [! N% _7 @tvb now,tvbnow,bttvb- ^1 t q( n6 ~6 ?! m3 _& I
210.6.90.151 H; Y- n+ `4 E" w$ ^, E
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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。 Q% K6 X4 ?* m* z
! j* m7 j/ E1 c* W公仔箱論壇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! tvb now,tvbnow,bttvb/ ^8 t* H1 y7 i' _% p
please 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! |