1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 2 /* */ 3 /* This file is part of the program and library */ 4 /* SCIP --- Solving Constraint Integer Programs */ 5 /* */ 6 /* Copyright (c) 2002-2023 Zuse Institute Berlin (ZIB) */ 7 /* */ 8 /* Licensed under the Apache License, Version 2.0 (the "License"); */ 9 /* you may not use this file except in compliance with the License. */ 10 /* You may obtain a copy of the License at */ 11 /* */ 12 /* http://www.apache.org/licenses/LICENSE-2.0 */ 13 /* */ 14 /* Unless required by applicable law or agreed to in writing, software */ 15 /* distributed under the License is distributed on an "AS IS" BASIS, */ 16 /* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */ 17 /* See the License for the specific language governing permissions and */ 18 /* limitations under the License. */ 19 /* */ 20 /* You should have received a copy of the Apache-2.0 license */ 21 /* along with SCIP; see the file LICENSE. If not visit scipopt.org. */ 22 /* */ 23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 24 25 /**@file branch_multaggr.h 26 * @ingroup BRANCHINGRULES 27 * @brief fullstrong branching on fractional and multi-aggregated variables 28 * @author Anna Melchiori 29 * @author Gerald Gamrath 30 * 31 * This branching rule uses all fractional binary and integer variables as candidates, 32 * as well as fractional multiaggregated binary and integer variables. Although not 33 * directly contained in the presolved problem anymore, the multi-aggregation provides 34 * an affine linear sum of integer variables, on which branching can be performed. 35 * 36 * For more details, see 37 * G.Gamrath, A.Melchiori, T.Berthold, A.M.Gleixner, D.Salvagnin: Branching on Multi-aggregated Variables 38 * (http://dx.doi.org/10.1007/978-3-319-18008-3_10) 39 */ 40 41 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/ 42 43 #ifndef __SCIP_BRANCH_MULTAGGR_H__ 44 #define __SCIP_BRANCH_MULTAGGR_H__ 45 46 47 #include "scip/def.h" 48 #include "scip/type_retcode.h" 49 #include "scip/type_scip.h" 50 51 #ifdef __cplusplus 52 extern "C" { 53 #endif 54 55 /** creates the multi-aggregated branching rule and includes it in SCIP 56 * 57 * @ingroup BranchingRuleIncludes 58 */ 59 SCIP_EXPORT 60 SCIP_RETCODE SCIPincludeBranchruleMultAggr( 61 SCIP* scip /**< SCIP data structure */ 62 ); 63 64 #ifdef __cplusplus 65 } 66 #endif 67 68 #endif 69