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

solution cost   : 657.769
number of trips : 4

trip 1, 2 customers, sequence : 13 10 
   weight    : 4350
   volume    : 117
   trip cost : 67.9375

trip 2, 7 customers, sequence : 11 9 8 5 4 21 7 
   weight    : 2800
   volume    : 770
   trip cost : 217.669

trip 3, 5 customers, sequence : 2 3 1 6 12 
   weight    : 744
   volume    : 734
   trip cost : 118.72

trip 4, 8 customers, sequence : 16 15 14 17 22 20 19 18 
   weight    : 2295
   volume    : 711
   trip cost : 253.442

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

trip 1 - vehicule packing see 2l_cvrp0705_T1.png
-----------------
customer 13, list of items : 1 2 
customer 10, list of items : 3 

trip 2 - vehicule packing see 2l_cvrp0705_T2.png
-----------------
customer 11, list of items : 1 2 3 
customer 9, list of items : 4 5 6 
customer 8, list of items : 7 8 9 10 
customer 5, list of items : 11 
customer 4, list of items : 12 
customer 21, list of items : 13 14 15 
customer 7, list of items : 16 17 18 

trip 3 - vehicule packing see 2l_cvrp0705_T3.png
-----------------
customer 2, list of items : 1 2 3 
customer 3, list of items : 4 5 
customer 1, list of items : 6 7 8 9 
customer 6, list of items : 10 11 
customer 12, list of items : 12 13 14 15 16 

trip 4 - vehicule packing see 2l_cvrp0705_T4.png
-----------------
customer 16, list of items : 1 2 3 
customer 15, list of items : 4 
customer 14, list of items : 5 6 7 8 
customer 17, list of items : 9 10 
customer 22, list of items : 11 12 13 
customer 20, list of items : 14 15 16 
customer 19, list of items : 17 
customer 18, list of items : 18