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Re:不需要用任何2X1 2X2就可以完成要求,这本身就是一种方案

Posted by Nat at 2008-08-27 21:06:44 on Problem 2506
In Reply To:Re:不需要用任何2X1 2X2就可以完成要求,这本身就是一种方案 Posted by:mayp at 2007-03-09 11:07:03
这个不严格解释无意中扩大了n的范围到负数,产生了一些错误。。 

之所以0为1因为
P[N] = P[N-1]+2*P[N-2];
考虑N=2的时候我们已经把N=0当作了逻辑上的倍数,为1.。。。

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