Programming VIP

1. Definitions and basic terms of drawings ①. Definition of graph Graph G is composed of two sets V and E, marked as G=(V,E), where V is the finite nonempty set of vertices, e is the finite set of vertex pairs in V, and these vertex pairs are symmetrical as edges. V(G) and E(G) usually represent the vertex set and edge set of graph G re ...

Title address: https://www.acwing.com/problem/content/2190/ Given a containing n n n points m m For a digraph with m edges, each edge has a lower bound and an upper bound. Find a feasi ...

Definitions and basic terms of drawings   Figure: G=(V, E)    Grapg = (Vertex, Edge)    V: finite non empty set of vertices (data elements);   E: finite set of edges Undirected graph: each edge is undirected Directed graph: each edge has a direction Complete graph: any two points have an edge connected Sparse gr ...

Experimental topic: solution of spanning tree, loop space and fault set space Purpose of the experiment: 1. Master the solution method of undirected connected graph spanning tree; 2. Master the solution method of basic loop system and loop space; 3. Master the solution method of basic cut set system and fault set space; 4. Understand the prac ...

Directory navigation: Minimum spanning tree: For a graph with n points, the edges must be greater than or equal to n − 1. The minimum spanning tree is to select from these edges N-1 edges connect all n points, and the sum of edge weights of these n − 1 edges is the smallest of all schemes One more thing: There are n ...

subject L2-016 wish all lovers in the world are brothers and sisters who have been separated for many years (25 points) ha-ha. We all know that intermarriage is not allowed within five clothes, that is, if the nearest common ancestor of two people is within five generations (i.e. myself, parents, grandparents, great grandparents and high grand ...

Summary of shortest path algorithm templates In graph theory, the graph is directed and undirected, and only the algorithm of the directed graph is considered here. For undirected graphs, we see them as a special kind of directed graph, for all undirected edges u ↔ ...

2022-02-13 swipe questions and punch in every day AcWing - Fundamentals of algorithm 897. Longest common subsequence - AcWing question bank Given two strings A and B with lengths of N and M respectively, find the longest string length of both A subsequence and B subsequence. Input format The first line contains two integers N and M. The s ...

Mapping method of single source shortest path Heat Wave Title Link: Heat Wave Analysis: for a relatively naked problem, directly build a drawing and set a template, and I will directly use spfa water. Code implementation: #include<iostream> #include<queue> #include<cstring> using namespace std; const int N=2510,M=12410; ...

Experiment Title: simple diagramming, judgment of connected graph, Euler graph and Hamiltonian graph Purpose of the experiment: Master the definition and judgment method that can be simplified;Master the judgment methods of connected graph and Euler graph;Master the search method of Euler loop;Understand the practical application of Euler cha ...