Solving Constraint Integer Programs

presol_dualcomp.h File Reference

Detailed Description

dual compensation presolver

Dieter Weninger

This presolver looks for variables with i) objcoef >= 0 and exactly one downlock ii) objcoef <= 0 and exactly one uplock and fixes the variable in case i) at the lower bound and in case ii) at the upper bound if a combination of singleton continuous variables can compensate the downlock in case i) and the uplock in case ii).

Definition in file presol_dualcomp.h.

#include "scip/def.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"

Go to the source code of this file.


SCIP_RETCODE SCIPincludePresolDualcomp (SCIP *scip)