heur_oneopt.h File Reference

Detailed Description

Improvement heuristic that alters single variable values.

Author

Timo Berthold

Oneopt is a straightforward improvement heuristic: given a feasible MIP solution, the value of an integer variable x_j can be decreased for c_j > 0 or increased for c_j < 0 if the resulting solution is still feasible. If more than one variable can be shifted, they are sorted by non-decreasing impact on the objective and sequentially shifted until no more improvements can be obtained.

Definition in file heur_oneopt.h.

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

Go to the source code of this file.

Functions
SCIP_RETCODE	SCIPincludeHeurOneopt (SCIP *scip)