Optimal solution to COVRP instance P-22-2:
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Route = 6 20 5 21 7 2 13 9 17 14, Demand = 159, RLen = 77.917697
Route = 16 1 10 4 11 15 12 3 8 18 19, Demand = 149, RLen = 89.273323
Sum of route lengths = 167.191020
CAP = 160
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