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[ÇóÖú] c++µ÷ÓÃcplexÓöµ½µÄÎÊÌâ

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ÎÒÓÃC++µ÷ÓÃcplex¶ÔÒ»¸ö·Ö¶Îº¯ÊýÇó½â£¬²»Í¬Çø¼ä¶Î¶¼ÊÇÏßÐÔº¯Êý£¬·Ö±ðÇó½â¡£µ«ÊÇÎҵijÌÐòΪʲôÔËÐнá¹ûÊÇËùÓÐÇø¼ä¶¼Ä¾ÓпÉÐн⡣²»ÖªµÀ¸ÃÔõôÕÒ´íÎó¡£
Ï£ÍûÁ˽âÏà¹ØÇé¿öµÄ°ïÎÒ¿´¿´£¬ÒÔÏÂÊDz¿·Ö´úÂ룺
CODE:
  for(m=0;m
   IloExpr expr2(env);
   for(t=1;t<=nTime;t++){
     n=0;
     for(i=1;i<=nPlant;i++){
      for(j=1;j<=nCustm;j++){
      expr2+=(Y[record[m][n]][i][j][1]+Y[record[m][n]][i][j][2]*Tran_qua[i][j][t]);     
       model.add(bound_point[record[m][n]-1][i][j]<=Tran_qua[i][j][t]<=bound_point[record[m][n]][i][j]);
//Ö÷ÒªÎÊÌâÓ¦¸Ã¾ÍÊÇÕâ¸öÔ¼ÊøµÄÌí¼Ó£¬¶ÔÓÚÿ¸öÇø¼ä¶¼Òª¼ÓÈëÏàÓ¦µÄÔ¼Êø£¬½øÐÐÏÂÒ»´Î¼ÆËãǰ»¹Òª½«Õâ´ÎµÄÇå¿Õ£¬ºóÃæÓеÄremove
       cout<<"Çø¼ä:("<        n++;    //ÕâÀïÊǼǼ·½°¸Mʱij¸öÇø¼äµÄ¾ßÌåȡֵ
      }
     }
    }

    //Ä¿±êº¯Êý
    IloObjective obj(env,expr1+expr2+expr5,IloObjective::Minimize);   //ÆäËûµÄ¼¸¸ö±í´ïʽʡÂÔûÓÐд
    model.add(obj);
    expr2.end();
   IloCplex cplex(model);
   
    //Calling cplex.solve returns a Boolean indicating whether or not a feasible solution has been found.

   if(cplex.solve()){
   
     cout<<"¿ÉÐÐ"<     total_cost[m+1]=cplex.getObjValue();
    env.out() << "total_cost[" <     //½øÐÐÏÂÒ»´Î·½°¸Ö®Ç°Òª½«ÔËÊäÁ¿Ô¼ÊøºÍÄ¿±êº¯ÊýÈ¥µô£¬Ï´ÎÖØÐ½¨Á¢
    model.remove(obj);
    for(t=1;t<=nTime;t++){
     n=0;
     for(i=1;i<=nPlant;i++){
      for(j=1;j<=nCustm;j++){
      model.remove(bound_point[record[m][n]-1][i][j]<=Tran_qua[i][j][t]<=bound_point[record[m][n]][i][j]);
      n++;
      }
     }
    }
    }

   else{
     cout<<"²»¿ÉÐÐ"<      total_cost[m+1]=Infin;
     
   //½øÐÐÏÂÒ»´Î·½°¸Ö®Ç°Òª½«ÔËÊäÁ¿Ô¼ÊøºÍÄ¿±êº¯ÊýÈ¥µô£¬Ï´ÎÖØÐ½¨Á¢
    model.remove(obj);
    for(t=1;t<=nTime;t++){
     n=0;
     for(i=1;i<=nPlant;i++){
      for(j=1;j<=nCustm;j++){
      model.remove(bound_point[record[m][n]-1][i][j]<=Tran_qua[i][j][t]<=bound_point[record[m][n]][i][j]);
      n++;
      }
     }
    }
     continue;  //±¾´Îmȡֵ²»¿ÉÐУ¬½Ó׎øÐÐÏÂÒ»´ÎÑ­»·
    }

  }

ÏÖÔÚÔËÐнá¹ûÊÇËùÓÐÇø¼ä¾ù²»¿ÉÐУ¬µ«Êµ¼ÊÉϲ¿·ÖÇø¼äÊÇ¿ÉÐеģ¬ÎÒʵÔÚ²»ÖªµÀ´íÄÄÀïÁË£¬Ï£Íû´ó¼Ò°ï°ïæ¡£
»òÕ߸æËßÎÒÓ¦¸ÃÔõôÕÒ´íÎóÒ²¿ÉÒÔ¡£
±¾ÎÄÀ´×Ô: ÈË´ó¾­¼ÃÂÛ̳ °®ÎÊÆµµÀ °æ£¬Ïêϸ³ö´¦²Î¿¼£º http://bbs.pinggu.org/forum.php? ... amp;fromuid=1009284

[ Last edited by jjdg on 2013-1-22 at 19:01 ]
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