Build a solution for the 0-1 Knapsack problem using backtracking algorithm. We have 5 items with price and weight: 1. $50 20 2. $30 5 3. $40 10 4. $10 5 5. $20 4 Limitation on the weight is: W = 21 Find the bound for the root node, find a solution node using backtracking algorithm.

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