This paper proposes the concept of adjustable loop and tries to make some rudimentary study of the multiple optimum-solution of minimum cost flow.

本文提出了可调圈的概念，并力图对最小费用流问题的多重最优解进行一些探讨。

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As multiple sequence alignment problem is an NPC problem, so its optimum solution cannot be obtained because of the time and space limits.

多序列比对问题是一个NPC问题，由于时间和空间的限制不能够求出精确解。

youdao

As multiple sequence alignment problem is an NPC problem, so its optimum solution cannot be obtained because of the time and space limits.

多序列比对问题是一个NPC问题，由于时间和空间的限制不能够求出精确解。

youdao