tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M u! [! N% _7 @
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0 o, v2 @2 [2 I: [: u7 y* i' E0 T/ R5.39.217.77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。7 f- F6 I, B X$ `
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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! " G; t) m0 `, S6 F3 w; g
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! |