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

solution cost   : 495.848
number of trips : 6

trip 1, 4 customers, sequence : 14 17 20 18 
   weight    : 4000
   volume    : 443
   trip cost : 74.5286

trip 2, 4 customers, sequence : 15 12 10 11 
   weight    : 4000
   volume    : 516
   trip cost : 92.6603

trip 3, 2 customers, sequence : 16 13 
   weight    : 3400
   volume    : 284
   trip cost : 40.3023

trip 4, 5 customers, sequence : 8 6 5 7 9 
   weight    : 3900
   volume    : 744
   trip cost : 88.6468

trip 5, 4 customers, sequence : 4 3 1 2 
   weight    : 4000
   volume    : 387
   trip cost : 123.434

trip 6, 2 customers, sequence : 21 19 
   weight    : 3200
   volume    : 203
   trip cost : 76.2762

__________________________________________________________

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

trip 1 - vehicule packing see 2l_cvrp0602_T1.png
-----------------
customer 14, list of items : 1 
customer 17, list of items : 2 3 
customer 20, list of items : 4 5 
customer 18, list of items : 6 7 

trip 2 - vehicule packing see 2l_cvrp0602_T2.png
-----------------
customer 15, list of items : 1 2 
customer 12, list of items : 3 4 
customer 10, list of items : 5 
customer 11, list of items : 6 

trip 3 - vehicule packing see 2l_cvrp0602_T3.png
-----------------
customer 16, list of items : 1 
customer 13, list of items : 2 3 

trip 4 - vehicule packing see 2l_cvrp0602_T4.png
-----------------
customer 8, list of items : 1 
customer 6, list of items : 2 3 
customer 5, list of items : 4 
customer 7, list of items : 5 6 
customer 9, list of items : 7 8 

trip 5 - vehicule packing see 2l_cvrp0602_T5.png
-----------------
customer 4, list of items : 1 
customer 3, list of items : 2 
customer 1, list of items : 3 4 
customer 2, list of items : 5 6 

trip 6 - vehicule packing see 2l_cvrp0602_T6.png
-----------------
customer 21, list of items : 1 
customer 19, list of items : 2 3