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Re:直接套公式就过了......

Posted by huicpc39 at 2010-03-01 12:16:06 on Problem 2663 and last updated at 2010-03-01 12:16:40
In Reply To:直接套公式就过了...... Posted by:LJW at 2009-06-08 08:03:37

if(n&1)printf("0\n");
else printf("%d\n",(int)(0.7886751345948128822545743*pow(3.7320508075688772935274463415,n/2.)+1));

Followed by:

Re:直接套公式就过了...... (137) yzcnyun 2010-09-26 16:37:42
Re:直接套公式就过了...... (168) angeldust 2012-03-04 10:57:41

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