Examples of Greedy Algorithm
Several well-known algorithms fall under the category of greedy algorithms. Here are a few examples:
- Dijkstra’s Algorithm: This algorithm finds the shortest path between two nodes in a graph. It works by repeatedly choosing the shortest edge available from the current node.
- Kruskal’s Algorithm: This algorithm finds the minimum spanning tree of a graph. It works by repeatedly choosing the edge with the minimum weight that does not create a cycle.
- Fractional Knapsack Problem: This problem involves selecting items with the highest value-to-weight ratio to fill a knapsack with a limited capacity. The greedy algorithm selects items in decreasing order of their value-to-weight ratio until the knapsack is full.
- Scheduling and Resource Allocation: The greedy algorithm can be used to schedule jobs or allocate resources in an efficient manner.
- Coin Change Problem: The greedy algorithm can be used to make change for a given amount with the minimum number of coins, by always choosing the coin with the highest value that is less than the remaining amount to be changed.
- Huffman Coding: The greedy algorithm can be used to generate a prefix-free code for data compression, by constructing a binary tree in a way that the frequency of each character is taken into consideration.
Greedy Algorithm Tutorial – Examples, Application and Practice Problem
Greedy Algorithm is defined as a method for solving optimization problems by taking decisions that result in the most evident and immediate benefit irrespective of the final outcome. It works for cases where minimization or maximization leads to the required solution.
Table of Content
- What is Greedy Algorithm?
- Characteristics of Greedy Algorithm
- Examples of Greedy Algorithm
- Why to use Greedy Approach?
- How does the Greedy Algorithm works?
- Greedy Algorithm Vs Dynamic Programming
- Applications of Greedy Algorithms
- Advantages of Greedy Algorithms
- Disadvantages of the Greedy Approach
- Greedy Algorithm Most Asked Interview Problems
- Frequently Asked Questions on Greedy Algorithm
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