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/ p: R; z8 j2 x' m) Q5.39.217.77:8898# U+ l+ M0 D1 m. S6 [5 }) MTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。* a1 Y0 [( \4 s9 R" d8 f3 j
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。: {/ K; \5 C) G% r
* d! _ M3 S7 p7 I5 TCan 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!
: z* ?( Z/ T' \: h' S E6 X: ctvb now,tvbnow,bttvbplease 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! |