instance:eil51.tsp m:7 alpha:0.250000 Q=2 nU:12 nW:38 lb:319.000000 ub:319.000000 7 0 7 2.00 0 8 2.00 0 17 2.00 0 21 2.00 0 26 2.00 0 31 2.00 0 45 2.00 10 1 21 1.00 2 21 1.00 3 17 1.00 4 45 1.00 5 26 1.00 6 7 1.00 9 8 1.00 10 31 1.00 11 45 1.00 12 17 1.00 319.000000