# Graph-DFS
This package allows for the creation of graphs. It also provides the depth first search algorithm.
## Installation
```shell
pip install graph-dfs
```
## How to use it?
To create a graph, do:
```python
g = Graph(n)
```
where `n` is the number of vertices. To create an arc from
vertex `a` to vertex `b`, do:
```python
g.link(a, b)
```
where `a` and `b` are indices in the range `[0, n - 1]`. You can perform a depth first search on the graph
with:
```python
dfs = DFS(g)
dfs.start()
```
If you desire to obtain a topological sorting of the graph, then do so after a DFS with:
```python
dfs.topological_sorting()
```
