1楼敬熙宝贝
(......)
发表于 2014-4-14 22:29
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solution:1.two pirates across the river, then 1 back
2.two pirates across the river, then 1 back
3.two admirals across the river, then 1 pirate and 1 admiral back
4.two admirals across the river, then 1 pirate back
5.two pirates across the river, then 1 back
6.two pirates across the river
is it correct?.
