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

solution cost   : 394.721
number of trips : 5

trip 1, 4 customers, sequence : 4 15 14 13 
   weight    : 75
   volume    : 691
   trip cost : 70.0063

trip 2, 4 customers, sequence : 8 3 9 7 
   weight    : 76
   volume    : 455
   trip cost : 78.0766

trip 3, 5 customers, sequence : 6 11 20 5 2 
   weight    : 81
   volume    : 673
   trip cost : 97.0188

trip 4, 3 customers, sequence : 17 16 18 
   weight    : 36
   volume    : 633
   trip cost : 74.2216

trip 5, 4 customers, sequence : 12 10 19 1 
   weight    : 61
   volume    : 609
   trip cost : 75.3977

__________________________________________________________

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

trip 1 - vehicule packing see 2l_cvrp0303_T1.png
-----------------
customer 4, list of items : 1 2 3 
customer 15, list of items : 4 5 
customer 14, list of items : 6 7 8 
customer 13, list of items : 9 10 11 

trip 2 - vehicule packing see 2l_cvrp0303_T2.png
-----------------
customer 8, list of items : 1 2 
customer 3, list of items : 3 4 
customer 9, list of items : 5 6 
customer 7, list of items : 7 

trip 3 - vehicule packing see 2l_cvrp0303_T3.png
-----------------
customer 6, list of items : 1 2 3 
customer 11, list of items : 4 5 6 
customer 20, list of items : 7 8 
customer 5, list of items : 9 
customer 2, list of items : 10 

trip 4 - vehicule packing see 2l_cvrp0303_T4.png
-----------------
customer 17, list of items : 1 2 
customer 16, list of items : 3 4 5 
customer 18, list of items : 6 7 8 

trip 5 - vehicule packing see 2l_cvrp0303_T5.png
-----------------
customer 12, list of items : 1 2 
customer 10, list of items : 3 4 5 
customer 19, list of items : 6 7 8 
customer 1, list of items : 9 10