tvb now,tvbnow,bttvb,tv series,tv drama,movie,bt,download- M u! [! N% _7 @
1 j% X D, j( _# w g# W210.6.90.151 H; Y- n+ `4 E" w$ ^, Etvb now,tvbnow,bttvb7 Y% C$ x& Z5 C% `3 T1 G
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' e' z/ g; Z( E# l5.39.217.77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。" Z1 t: p s) z$ s2 t- x7 B! h6 M
$ ^" M" w! A( V5 v& 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! 5.39.217.77- v' m5 v/ {; M. e: `0 ~6 [% U# \
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! |