求助：找两个浮点数组中各项的相等关系

Question

有两个浮点数数组，两个数组的长度不一定相等，两个数组的各项的合计相等。如何能迅速找到两个数组中各项的相等关系，优先找一对一，然后是一对二、一定三……，最后是多对多
 比如：
A = { 30, 20, 80 }
 B = { 20, 30, 45, 35}
应该找到：
A[1]  = B[2]
 A[2]  = B[1]
 A[3] = B[3] + B[4]

Answer 1

我的想法是先找到一对一的，并从A、B中剔除这些项。然后在将剩余项从2到n-1组合的合计计算出来再比较，但是感觉非常繁琐，有没有简洁的算法。

Answer 2

你好，老邸

获取一对一的很简单，而这个问题的一个关键点是如何找到一对多的关系，针对这个问题你可以参考如下这个类似的帖子。

http://bbs.csdn.net/topics/391884847

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Best Regards,

Albert Zhang

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