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This article mainly shows you "how PHP dynamic planning to solve 0-1 knapsack problem", the content is easy to understand, clear, hope to help you solve doubts, the following let the editor lead you to study and learn "how PHP dynamic planning to solve 0-1 knapsack problem" this article.

The specific analysis is as follows:

Description of the knapsack problem: a backpack with a maximum weight of W now has n items, each with a weight of t and a value of v.

To maximize the weight of this backpack (but not more than W), you need to maximize the value of the backpack at the same time.

Idea: define a two-dimensional array, one dimension is the number of items (representing each item), two dimensions is weight (no more than the maximum, here is 15), and the following array a

The principle of dynamic programming, the maximum value in max (opt (imurl), wi+opt (imurl)

Opt refers to the last optimal solution.

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