这里有一道测试题There is a big tiger and a small one,a big wolf and

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/28 10:48:35

这里有一道测试题
There is a big tiger and a small one,a big wolf and a small one,a big fox and a small one.They need to go across a river.
There is a small boat which can bear at most two animals once,and the small one can't leave the big one.
Question:How do they go across the river?
The little one can move the boat by itself.

呵,终于有时间想问题了,我找了相关的资料,意大利数学家（塔尔塔利亚）提了个过河问题.问题是这样的：三个漂亮的新娘和他们的新郎要过河.可是小船只能装载两人.为了避免任何不良情况,过河必须这样安排：除非是自己的丈夫,任何一位新娘不得和别人的丈夫独处.在新娘和新郎都会划船的情况下,该如何安排过河呢?
给你答案,你自己把模型套进就行了,而且你增加人数或别的,很容易设计出更复杂的问题.
答案：设新娘为W,新郎为H,则有H1,W1；H2,W2；H3,W3；分九步,1：H1和W1过河,2：W1返回,3：W1,W2过河,4：W2返回,5：H2和W2过河,（你学过递归的话,接下来用递归就可以了）6：W2返回,7：W2,W3过,8：W3返回,9：H3,W3过河.过河完毕.

There is a big swimming pool and/with a small garden.请问,这里是该 Is there a big surpermaket or a small one回答 There is a big desk between----- and -------. （A）Mr Black has two cats.One is big and the other is small.H the big cat ____ a small tiger. “A big fish A big fish in a small pool and A small fish in a There ( )a big tiger and two baby tigers in the cage? It is Christmas Day,and there is a big party National Day is coming and there is a big 英语翻译A fool and his money is one big party do you prefer to study in a big city or a small one ,and exp "I have a small mirro,and I a___ have a big one.