tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M u! [! N% _7 @
2 w6 E; N/ [7 v# o) ]* j! hwww3.tvboxnow.com210.6.90.151 H; Y- n+ `4 E" w$ ^, Etvb now,tvbnow,bttvb% b/ K. \* H8 b
# U+ l+ M0 D1 m. S6 [5 }) Mtvb now,tvbnow,bttvb) Q7 C. ^7 C D! W, X
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。
! ^1 P3 L+ @ R) o" Y6 Mtvb now,tvbnow,bttvb$ [; C0 ]* H+ s& C
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!
) I# M3 g4 ^4 u1 r; _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! |