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Generation #20
problem size = 100 -> 50
Heuristic #4, from m1):
objective = 19.99970, time = 0.2 s

problem size = 100 -> 100
Heuristic #4, from m1):
objective = 40.23740, time = 0.5 s

problem size = 100 -> 200
Heuristic #4, from m1):
objective = 57.40694, time = 1.9 s

