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如果 f(n,k) + f(n,k-1) = c1 * f(n-1,k-1) + c2 * f(n-1,k-2) 那么 c1 和 c2 应该是什么大 O 表示法的术语。它们是 k 中的多项式还是常数?
我无法正确扩展此重复。