Suppose in a social media network: N is friends with K, P, U, X X is friends with N, A, B and C U is friends with A, B and N A is friends with P, U and X B is friends with X and U P is friends with K, N and A K ..

#### Category : adjacency-list

Last week, I was working on a homework, that asked us to implement a directed graph data structure. I decided to implement my graph as an adjacency list. below in the picture, you can see the idea I had. To implement this structure, I created two nested structures. CityListNode, and RouteListNode. (In the homework, we ..

I want to make a C++ program on creating a graph using an adjacent list. So I made this: #include<bits/stdc++.h> using namespace std; struct listNode{ int vertexNumber; listNode *next; }; struct graph{ int v; int e; listNode*adj; }; struct graph *adjListofGraph(){ int i,x,y; listNode *temp; graph *g = (graph*)malloc(sizeof(graph)); if(!g){ cout<<"memory error"; return NULL; } ..

I am currently trying to write an algorithm which runs a depth first search by traversing through an adjacency list which holds the vertices and edges of a directed graph. When I print out the adjacency list I know I am storing the information correctly in an array of linked lists, but when I run ..

This is the way that I define my adjacency list: vector<vector<int>> adj; I want to iterate through the entire adjacency list and find if a certain value exists. If that value exists in the adjacency list, I want to delete it. I have tried 2 approaches: Approach 1: for(auto elem: adj){ for(auto ind: elem){ if(elem[ind]==num){ ..

Trying to take an adjacency relation with this input format {(1,2),(1,5),(2,1),(2,3),(3,2),(3,4),(4,3),(4,5),(5,1),(5,4)} and print a adjacency matrix. My goal was to check for digits using isdigit() and then take the 2 numbers and update my matrix in those indexes. My matrix still results with all 0’s. To test input. 6 as nodes and enter the above ..

I’m reading the documentation about adjacency_list and the impact choosing the graph type has on memory consumption, big-O runtime, and descriptor stability. Quoting the first link: The following table summarizes which operations cause descriptors and iterators to become invalid. In the table, EL is an abbreviation for OutEdgeList and VL means VertexList. The Adj Iter ..

I’m trying to do some analysis on the time complexity of Kosaraju and Tarjan algorithm to find strongly connected components in a directed graph but the process of making up the graph is taking too much time. I tried making this 21 nodes graph but this too took me too long, i don’t think continuing ..

I’m trying to do some analysis on the time complexity of Kosaraju and Tarjan algorithm to find strongly connected components in a directed graph but the process of making up the graph is taking too much time[ i have to type the "g.add_edge(x,y)" over and over]. I tried using a loop but then how’d i ..

What is an efficient way to implement Adjacency List Representation of Graph in C++? vector *edges; list *edges; map<int, int> *edges; In my opinion, it should be option 3, but I could not find any cons in using that… Are there any? Can someone please help me, which will be the most efficient way of ..

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