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Generation #20
problem size = 100 -> 50
Heuristic #7, from m1):
objective = 20.00167, time = 0.2 s

problem size = 100 -> 100
Heuristic #7, from m1):
objective = 40.23809, time = 0.7 s

problem size = 100 -> 200
Heuristic #7, from m1):
objective = 57.40780, time = 2.9 s

