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Re:请大家帮我看一下我那个地方没理解题?

Posted by chongchongxiong at 2009-09-03 16:02:27 on Problem 1149
In Reply To:Re:请大家帮我看一下我那个地方没理解题? Posted by:tom31203120 at 2009-08-28 14:15:35 
2 1 2 2
第一个客户有2把钥匙，打开1，2门，买了2头猪
剩余2头猪放在2门内
2 1 3 3
第二个客户有2把钥匙，打开1，3门，买了3头猪
1 2 6
第三个客户有1把钥匙，打开2门，买了2门2头猪
所以答案总共是7头猪。
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