tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M u! [! N% _7 @tvboxnow.com4 r7 l! b+ m$ r6 b7 P9 m% b
210.6.90.151 H; Y- n+ `4 E" w$ ^, Etvboxnow.com" j _2 C* t) j ?' z
# U+ l+ M0 D1 m. S6 [5 }) M' ^2 ?( g4 a# e! u
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。
$ ]- ^9 \9 w5 ~tvboxnow.com
3 D( H* s* q' \( P( |* {8 f# FCan 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& j5 E; O; S& B: m. z F
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! |