* Replacing the generator with numpy vector operations from lu_decomposition.
* Revert "Replacing the generator with numpy vector operations from lu_decomposition."
This reverts commit ad217c6616.
* Replacing the example in doctest with a less resource-intensive example.
* add backtracking word search
* updating DIRECTORY.md
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* review notes fixes
* additional fixes
* add tests
* small cleanup
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* small cleanup 2
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* Update backtracking/word_search.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update backtracking/word_search.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update backtracking/word_search.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update backtracking/word_search.py
Co-authored-by: Christian Clauss <cclauss@me.com>
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Co-authored-by: Christian Clauss <cclauss@me.com>