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作者:gugaotianshi

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表达式解析器? Lisp 之类的函数编程语言天生的。
不过,穷举所有表达式也不容易啊,主要是那个N对的括号- –

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我现在想到的是把 2010 分成两个数,即:

2010 = f(x,y)

如 2010 = 1 + 2009

之后再递归迭代 1 = f(x’,y’), 2009 = f(x”,y”)。

然后,每次迭代,都会尝试去求得 x 与 y 在即有条件下是否可以构造成功。

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有空时看看24点的算法看有无启示 :)


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