In how many ways we can make a graph?
please mention all of them.
The most common representations of graph, which can be used for both directed and undirected graph are:

Adjacency Matrix

Adjacency List
You can read about them in detail over here: click here
Related topics to study: Graph Algorithms Dijkstra’s, Warshall, dfs, bfs, and many more.
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i think you your question should be in how many ways we can represent a graph .
by using 3 ways 1. Adjacency matrix 2. adjacency list 3. adjacency Set
i visited the link provided by you …but its too complicated to understand the logic,do we have another easy way to make a graph?
nope,it is how many ways we can implement adjacent list?