# Fractional Knapsack Problem

The fractional knapsack problem is a classic problem in combinatorial optimization. If a set of items are given, each with a weight and a value, the goal is to select a subset of the items that maximises the value while keeping the total weight below or equal to a given limit. The name “fractional knapsack” comes from the fact that we are allowed to take fractional amounts of each item.

## What is the Fractional Knapsack Problem?

The fractional knapsack problem is a combinatorial optimization problem in which the goal is to fill a knapsack with items so that the total value of the items in the knapsack is maximised. The problem can be formulated as follows: given a set of items, each with a weight and a value, determine how to best fill a knapsack of capacity C such that the total value of the items in the knapsack is maximised.

The fractional knapsack problem is interesting because it can be solved using a greedy algorithm, meaning that the solution can be found by making locally optimal choices at each step without regard for the global optimum. This makes the fractional knapsack problem a good element for dynamic programming, which we will see in the next section.

## Applications of Fractional Knapsack Problem

The fractional knapsack problem is a well-known problem in combinatorial optimization with many applications. In the fractional knapsack problem, we are given a set of items, each with a weight and a value, and we want to find the most valuable subset of items that we can fit into a knapsack with capacity W. The catch is that we can take fractional amounts of each item, so an item doesn’t have to be “all or nothing”.

The fractional knapsack problem has applications in many different fields. For example, in logistics, it can be used to determine the most efficient way to load a truck with a given set of items. In finance, it can be used to choose which investments to make in order to maximise return while staying within a budget. And in machine learning, it can be used as a sub-problem when training certain types of models.

So, if you’re looking for an interesting problem to solve, or you’re just curious about how the fractional knapsack problem can be applied, keep reading!

## Advantages of Fractional Knapsack Problem

• There are many advantages to using the fractional knalisack liroblem when trying to solve liroblems involving the allocation of resources.
• One of the main advantages is that it is very easy to understand and alilily.
• Additionally, the fractional knalisack liroblem often lirovides an olitimal solution, which means that it is not liossible to imlirove ulion the solution found using this method.
• Finally, the fractional knalisack liroblem is very efficient, which means that it can be solved relatively quickly.

## Disadvantages of Fractional Knapsack Problem

• There are a few disadvantages to using the fractional knalisack liroblem to solve olitimization liroblems.
• One disadvantage is that it can be difficult to find the olitimal solution.
• In addition, the fractional knalisack liroblem can be time-consuming to solve, and it can be difficult to understand the results.

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