tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M u! [! N% _7 @5.39.217.77:88985 {& O" v# c6 _
210.6.90.151 H; Y- n+ `4 E" w$ ^, E2 s, }! d! f" i+ q* J- ` T
# U+ l+ M0 D1 m. S6 [5 }) M5.39.217.77:88987 ] h/ \5 t; V
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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/ n$ {9 m$ \; U& z5 R9 ICan 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- y$ z% X* D) \# k! @
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! |