[Help-glpk] Re: Selection rules on degenerate solutions (Panajotis Papazoglou)

[varada . rajan]

Hi,
Say, If you have defined Xblue and Xred as two binary integer variables which can take either 0 or 1
adding a constraint like
Xblue - Xred >= 0
will give blue a higher priority over red, i.e., Xred can be 1 only when Xblue is 1,
but as you say both being optimal, blue will be chosen.
try it out !
regds
Rajan