What is the exact definition of undirected graph, directed graph ...
A unidirectional graph is another name for an undirected graph. A bidirectional graph is a directed graph obtained from an undirected graph by replacing each edge $\ {x,y\}$ by a pair of edges $ (x,y), (y,x)$.
algorithms - Find the Simple Cycles in a Directed Graph - Computer ...
You may be interested in the algorithm presented in this paper: . Donald B. Johnson. SIAM J. COMPUT. Vol. 4, No. 1, March 1975 An algorithm is presented which finds all the elementary circuits-of a …
data structures - What is the difference between directed graph and ...
Dec 4, 2020 · Is the graph above bidirectional? The image in wikipedia confused me a lot, before I heard about something called as bidirectional graph, I would say the above one a directed graph, but I am …
What do we do instead of DFS on directed graphs?
Jan 14, 2018 · All the example of DFS I've seen so far are for undirected graph. In a directed graph the basic DFS algorithm won't work because some vertex will be unreachable. The algorithm I'm talking …
Converting a digraph to an undirected graph in a reversible way
Jan 15, 2014 · I am looking for an algorithm to convert a digraph (directed graph) to an undirected graph in a reversible way, ie the digraph should be reconstructable if we are given the undirected graph. I …
How to make a directed graph in python? - Computer Science Stack …
Jan 4, 2021 · This looks like a . For a Python graph library, you can have a look at networkx. There are other libraries too, like igraph and graph-tool. There are many resources for creating . If you're a …
Is Directed Graph a Graph? - Computer Science Stack Exchange
yes, directed graph is a graph. Actually there can be various kinds of classifications like: undirected graph and directed graph. Other could be simple graph, multi-graph, hyper-graph. Read all the …
algorithms - Why there is no definition of cut vertices or articulation ...
May 29, 2024 · It seems that people barely talk about cut vertex in directed graph, is it because this definition of cut vertex in directed graph is useless for practical usage and research purpose or …
How to remove cycles from a directed graph
Apr 10, 2018 · In graph theory, a directed graph may contain directed cycles, a one-way loop of edges. In some applications, such cycles are undesirable, and we wish to eliminate them and obtain a …
Linear-time algorithm to find an odd-length cycle in a directed graph
May 17, 2016 · The related [email protected] asks for the existence of an odd-length directed cycle in a digraph, which is solved by the following [email protected]. Theorem: A …