They are as easy to declare as integer variables.
这与将它们声明为整型变量一样容易。
GLPK has to consider the decision variables as integer variables.
GLPK必须要将这些决策变量全部当作整型变量进行考虑。
These models are large scale integer programmings with 0-1 variables and general integer variables.
这些模型形成具有0—1变量和一般整型变量的大规模整数规划问题。
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