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1enum ITEM; 2int: capacity; 3 4array[ITEM] of int: profits; 5array[ITEM] of int: weights; 6 7var set of ITEM: knapsack; 8 9constraint sum (i in knapsack) (weights[i]) <= capacity; 10 11solve maximize sum (i in knapsack) (profits[i]) ; 12 13output ["knapsack = \(knapsack)\n"];