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

solution cost   : 383.875
number of trips : 4

trip 1, 5 customers, sequence : 14 17 21 19 13 
   weight    : 5800
   volume    : 642
   trip cost : 88.9436

trip 2, 5 customers, sequence : 10 7 5 9 12 
   weight    : 5300
   volume    : 645
   trip cost : 81.4779

trip 3, 4 customers, sequence : 16 20 18 15 
   weight    : 5700
   volume    : 464
   trip cost : 82.3778

trip 4, 7 customers, sequence : 8 6 2 1 3 4 11 
   weight    : 5700
   volume    : 671
   trip cost : 131.076

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

trip 1 - vehicule packing see 2l_cvrp0504_T1.png
-----------------
customer 14, list of items : 1 2 3 4 
customer 17, list of items : 5 6 7 8 
customer 21, list of items : 9 10 
customer 19, list of items : 11 
customer 13, list of items : 12 

trip 2 - vehicule packing see 2l_cvrp0504_T2.png
-----------------
customer 10, list of items : 1 
customer 7, list of items : 2 3 
customer 5, list of items : 4 
customer 9, list of items : 5 6 
customer 12, list of items : 7 8 9 

trip 3 - vehicule packing see 2l_cvrp0504_T3.png
-----------------
customer 16, list of items : 1 
customer 20, list of items : 2 3 4 
customer 18, list of items : 5 6 
customer 15, list of items : 7 

trip 4 - vehicule packing see 2l_cvrp0504_T4.png
-----------------
customer 8, list of items : 1 
customer 6, list of items : 2 
customer 2, list of items : 3 
customer 1, list of items : 4 5 6 7 
customer 3, list of items : 8 
customer 4, list of items : 9 10 11 12 
customer 11, list of items : 13