protected override int[] InitialSolution() { int[] solution; if (generatedSolutions == 0) { solution = TwoSPUtils.DecreasingArea(Instance); } else if (generatedSolutions == 1) { solution = TwoSPUtils.DecreasingWidth(Instance); } else if (generatedSolutions == 2) { solution = TwoSPUtils.DecreasingHeight(Instance); } else { solution = TwoSPUtils.RandomSolution(Instance); } generatedSolutions++; return(solution); }