|
310#
發表於 2008-9-11 08:50 AM
| 只看該作者
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。
- ~0 o9 |- J$ i5 X! f U
`- r- e1 @& P, U8 m, Etvb now,tvbnow,bttvbi don't get it.. how to pick someone to record it.. when there is only 1 person allow to go out each day..and he/she will lock up later |
|