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迭代-php 求解走楼梯的算法

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2016-06-02 11:31:001199browse

迭代php递归算法

设 有50阶楼梯的。一次可以 1阶 或 2阶.求一共有几种走法。求迭代和递归法。 代码能不能打印每一次走法的每一步是几阶? 譬如 1-2-1-1-2...,1-1-1-1...,.共N种走法

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