Hello, my name is Hasity. What I’m sharing today: Dijkstra’s question of finding the shortest path Dijkstra finds the shortest path I Title description Given a directed graph with n points and m edges, there may be duplicate edges and self-loops in the graph, and all edge weights are positive. Please find the shortest distance […]
Tag: shortest
Graph theory shortest path problem-Dijkstra’s algorithm
When doing a search question, the shortest path problem in graph theory appeared (Dijkstra’s algorithm was used). Here we review the basic template of Dijkstra’s algorithm based on the explanation in the algorithm notes. Algorithm Notes P386 There are N cities (numbered 0~N – 1), M roads (undirected edges), and the distance attributes and cost […]
[Algorithm Design and Analysis] – Greedy Algorithm for Single Source Shortest Path
Everyone is welcome to watch my algorithm design and analysis column: Algorithm Design and Analysis_IT Yan’s Blog-CSDN Blog I hope it will be helpful to everyone! Personal column: Algorithm design and analysis: Algorithm design and analysis_IT Yan’s blog-CSDN blog Java Basics: Java Basics_IT Yan’s Blog-CSDN Blog C language: c language_IT Yan’s blog-CSDN blog MySQL: Data […]
[WSN] Research on node energy consumption of WSN routing protocol (shortest path) based on ant colony algorithm (Matlab code implementation)…
?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For cooperation on MATLAB projects, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization content, click Intelligent optimization algorithm […]
C++ algorithm: Principle and implementation of heap optimization Di’s shortest single source path
Time complexity O(ElogE), E is the number of edges. Suitable for sparse graphs. Prerequisites The weight of the edge is positive. It can be disconnected, and the distance of disconnection is -1. Principle The optimal queue (small root heap) records two data: the distance from the current point to the source point, and the current […]
C++ algorithm: 01BFS shortest distance principle and implementation
Time complexity O(n), n is the number of edges. Prerequisites There are only two types of edge weights: 0 and 1. Typical scenarios An undirected graph with n endpoints, number range [0,n). Edges0 means {{n1,n2},…{n3,n4}} means there is a path connection between n1 and n2, n3 and n4. Edges1 indicates that {{n1,n2},…{n3,n4}} indicates that there […]
[WSN] Research on node energy consumption of WSN routing protocol (shortest path) based on ant colony algorithm (Matlab code implementation)
Welcome to this blog Advantages of bloggers:Blog content should be as thoughtful and logical as possible for the convenience of readers. Motto:He who travels a hundred miles is half as good as ninety. The directory of this article is as follows: Table of Contents 1 Overview 2 Operation results 3 References 4 Matlab code implementation […]
[WSN] Research on node energy consumption of WSN routing protocol (shortest path) based on ant colony algorithm (Matlab code implementation)
Welcome to this blog Advantages of bloggers:Blog content should be as thoughtful and logical as possible for the convenience of readers. Motto:He who travels a hundred miles is half as good as ninety. The directory of this article is as follows: Table of Contents 1 Overview 2 Operation results 3 References 4 Matlab code implementation […]
Java handwritten shortest path algorithm and case expansion
Java handwritten shortest path algorithm and case expansion 1. The necessity of algorithm handwriting In actual development, it is often necessary to deal with the shortest path problem of the graph. Although Java provides some graph algorithm libraries, the necessity of handwritten shortest path algorithms is reflected in the following aspects: Understanding algorithm principles: Handwritten […]
hdu 6852Path6 (shortest path + minimum cut)
portal ?Question meaning There are n cities, labeled 1-n Now spend the minimum cost to block the road Make the side length of the path from city 1 to city n (Note that it only becomes longer, not the longest) The cost of blocking a road is the weight of the road ?Thoughts Before the […]