* Fix validate_initial_digits of credit_card_validator.py
@Bhargavishnu I think that I broke the logic of validate_initial_digits which should require that credit_card_number[0] is 3 before checking that credit_card_number[1] is 4, 5, or 7. Please verify the new changes and the new test cases to make sure that this is correct. Thanks!
* updating DIRECTORY.md
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* add an algorithm to spin some words
* Update index.py
* Adding type hint of spin_words function
* Update and rename python_codewars_disemvowel/index.py to strings/reverse_long_words.py
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* added complete graph generator function
* added doctest, type hints, wikipedia explanation
* added return type hint for function complete_graph
* added descriptive name for the parameter: n
* random graph generator with doctest and type hints
* validated using pre-commit
* Delete complete_graph_generator.py
* fixed doctest
* updated following reviews
* simplified the code following reviews
* fixed doctest and solved consistency issues
* consistency fixes
* Updated Pop function
Added underflow condition
* Update Pop Function
Added condition to check underflow of stack
* Update stack.py
* if not self.stack: raise StackUnderflowError
* Add doctests
* StackUnderflowError
* ..., not ....
* Update stack.py
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* Added new file: nasa_data.py
* Modified as per review
* Minor change
* print(get_archive_data("apollo 2011")["collection"]["items"][0]["data"][0]["description"])
* Update nasa_data.py
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* add check_cycle.py
* Update graphs/check_cycle.py
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* Update check_cycle.py
* Apply suggestions from code review
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* Fix type annotations for trie.py
* Add strict type annotations to trie.py
Annotate return type for all functions and type for "nodes"
* updating DIRECTORY.md
* Format trie.py
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* fix: fix mypy errors
Update binary_search_tree `arr` argument to be typed as a list
within `find_kth_smallest` function
Update return type of `merge_two_binary_trees` as both inputs can
be None which means that a None type value can be returned from
this function
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* [mypy] fix type annotations for graphs/a_star.py #4052
* updating DIRECTORY.md
* Add from __future__ import anotations
* rename delta by DIRECTIONS
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* Rename delta by DIRECTIONS in all code
* Enclose script in __main__ code block
* Refactor DIRECTIONS with comments for readibility
* Delete heuristic example comment
* Do not print, return all values
* Fix multilines
* fix black
* Update a_star.py
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* Add missing type annotation
* Fix conversion bug
This failed when called with the documented example of `1.5` and was correctly
pointed out by `mypy --strict`
* Update annotations to Python 3.10 #4052
* Add floats doctest
* Copy list to avoid changing input unpredictably
* Refactor code to make it readable
* updating DIRECTORY.md
* Improve raised ValueErrors and add doctest
* Split doctest in multiples lines
* Change ValueError to Monogons and Digons are not poly
* Correct doctest refering number of sides
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* Fix several typos
* Update bit_manipulation/README.md
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* Update double_sort.py
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* Added regular expression implimentation using dp
* replaced input() with example values
* Apply suggestions from code review
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* changed returning value to bool and added test cases
* added doctest
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* added test cases
* Apply suggestions from code review
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* shifted to strings
* Changed filename
* Update function name to match_pattern
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* Update function name to match_pattern
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This is a followup to https://github.com/TheAlgorithms/Python/pull/4973#issuecomment-933117382
As per given suggestion, I've added type hints to certain methods that don't have them. I have also added documentation and example doctests as a usage example for (most of) those that don't have them.
I have also added another test case following the previous test case's format. I noticed that the existing test case from previous pull request might be redundant with the ones I've made, so I decided to create a specific situation where the linked list would have to keep different kinds of data types for each node, in `test_singly_linked_list_2` test function.
Some minor changes in strings has been done to keep things consistent with other parts of the document. If it is undesirable, please let me know.
