for (int i = 1; i <= N; i++){ int v = input.nextInt(); int p = input.nextInt(); int q = input.nextInt(); Gs[i] = new good(v,p,q); } for (int i = 1; i <= N; i++){ if (Gs[i].q > 0){ if (Gs[Gs[i].q].a1 == 0){ Gs[Gs[i].q].setA1(i); }else { Gs[Gs[i].q].setA2(i); } } }
2

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