Updated check_bipartite_graph_dfs.py (#9525)

* Create dijkstra_algorithm.py

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* Update dijkstra_algorithm.py

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* Update dijkstra_algorithm.py

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* Delete greedy_methods/dijkstra_algorithm.py

* Update check_bipartite_graph_dfs.py

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* Update check_bipartite_graph_dfs.py

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* Update graphs/check_bipartite_graph_dfs.py

Co-authored-by: Christian Clauss <[email protected]>

* Update graphs/check_bipartite_graph_dfs.py

Co-authored-by: Christian Clauss <[email protected]>

* Update check_bipartite_graph_dfs.py

* Update check_bipartite_graph_dfs.py

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* Update check_bipartite_graph_dfs.py

* Update check_bipartite_graph_dfs.py

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* Update check_bipartite_graph_dfs.py

* Update check_bipartite_graph_dfs.py

* Update check_bipartite_graph_dfs.py

* Let's use self-documenting variable names

This is complex code so let's use self-documenting function and variable names to help readers to understand.

We should not shorten names to simplify the code formatting but use understandable name and leave to code formatting to psf/black.

I am not sure if `nbor` was supposed to be `neighbour`.  ;-)

* Update check_bipartite_graph_dfs.py

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <[email protected]>