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这题通过率这么低我感到很奇怪

Posted by DancingBlue at 2006-06-26 20:20:25 on Problem 2583
就是个简单的数学多项式,注意到:
0*a+0*b+c=n1;   ->   c=n1;               (1)
1*a+1*b+c=n2;   ->   a=n2-b-n1;          (2)
4*a+2*b+c=n2;   ->   b=(4*n2-3*n1-n3)/2; (3)

连立(1,2,3),可以求出abc,自然就得到了多项式,然后想求什么不就很简单了?


一点拙见,抛砖引玉.

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