tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M u! [! N% _7 @
, Z0 i2 Y( R# ]5.39.217.77:8898210.6.90.151 H; Y- n+ `4 E" w$ ^, Etvb now,tvbnow,bttvb, e" L* g4 s. Y' j/ n+ `
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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。
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; r! B5 ^1 `, T8 W, lCan 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,bttvb8 \" x B: R9 i. ?5 [1 ~( u# b
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! |
發表於 2009-1-10 12:57 PM
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from 2009-1-6 , I got it!
5.39.217.77:8898: l0 D/ q! A% e& U0 P
