----------------  SOLUTION  -------------------

solution cost   : 387.704
number of trips : 5

trip 1, 4 customers, sequence : 1 20 5 2 
   weight    : 77
   volume    : 566
   trip cost : 82.7239

trip 2, 4 customers, sequence : 6 11 19 10 
   weight    : 57
   volume    : 596
   trip cost : 81.7835

trip 3, 4 customers, sequence : 4 15 14 13 
   weight    : 75
   volume    : 593
   trip cost : 70.0063

trip 4, 4 customers, sequence : 8 3 9 7 
   weight    : 76
   volume    : 351
   trip cost : 78.0766

trip 5, 4 customers, sequence : 17 16 18 12 
   weight    : 44
   volume    : 622
   trip cost : 75.1135

__________________________________________________________

----------------  BIN PACKING  -------------------

trip 1 - vehicule packing see 2l_cvrp0302_T1.png
-----------------
customer 1, list of items : 1 
customer 20, list of items : 2 3 
customer 5, list of items : 4 
customer 2, list of items : 5 6 

trip 2 - vehicule packing see 2l_cvrp0302_T2.png
-----------------
customer 6, list of items : 1 
customer 11, list of items : 2 3 
customer 19, list of items : 4 
customer 10, list of items : 5 6 

trip 3 - vehicule packing see 2l_cvrp0302_T3.png
-----------------
customer 4, list of items : 1 2 
customer 15, list of items : 3 
customer 14, list of items : 4 5 
customer 13, list of items : 6 

trip 4 - vehicule packing see 2l_cvrp0302_T4.png
-----------------
customer 8, list of items : 1 
customer 3, list of items : 2 
customer 9, list of items : 3 4 
customer 7, list of items : 5 

trip 5 - vehicule packing see 2l_cvrp0302_T5.png
-----------------
customer 17, list of items : 1 2 
customer 16, list of items : 3 
customer 18, list of items : 4 
customer 12, list of items : 5 6