tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M u! [! N% _7 @
3 L4 d; c/ a# N# G210.6.90.151 H; Y- n+ `4 E" w$ ^, E1 S$ G% X6 y. S' P7 ~, g
# U+ l+ M0 D1 m. S6 [5 }) M- c9 W* H9 W2 @% r
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。tvb now,tvbnow,bttvb1 J+ e/ a. k; s9 F' m
# L" n$ P. f* {5 j9 G
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! ; f" b9 N" v# M 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! |