The metadata for determining what group an article is suitable for is only available inside the file requiring the same solution as for the previous point.
确定某篇文章适合于哪个组的元数据只在需要与前一点同样的解决方案的文件中可用。
The best solution is to not call the shell directly from inside a program.
最好的解决方案是不要从程序内部直接调用 shell。
This means that the feasible region consists of discrete points in space and, therefore, a relaxation in one of the constraints may or may not yield a better solution inside the new polyhedron.
这意味着可行域是由这个空间中的一些离散点构成的,因此放松某个限制可能会在新的多面体中获得更好的解决方案,也可能并不能获得更好的解决方案。
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