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Generation #20
problem size = 100 -> 50
Heuristic #2, from m1):
objective = 20.00236, time = 0.2 s

problem size = 100 -> 100
Heuristic #2, from m1):
objective = 40.23907, time = 0.8 s

problem size = 100 -> 200
Heuristic #2, from m1):
objective = 57.40906, time = 2.7 s

