由于该问题是一个NP -完全组合优化问题，随着问题规模的扩大，往往难以求得最优或满意的机器配置方案。
As it is a NP-complete combinatorial optimization problem, it is difficult to obtain the optimal or satisfying solution with the increase of the problem scale.
由于该问题是一个NP -完全组合优化问题，随着问题规模的扩大，往往难以求得最优或满意的机器配置方案。
As it is a NP-complete combinatorial optimization problem, it is difficult to obtain the optimal or satisfying solution with the increase of the problem scale.
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