* feat: Binary tree node sum (#7020)
* feat: Sum of all nodes in binary tree explanation (#7020)
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* refactor: Change replace method with `__iter__` overriding (#7020)
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* Binary Search Tree Inorder Traversal
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* Binary Search Tree Inorder Traversal v2
* Binary Search Tree Inorder Traversal
* Binary Search Tree Inorder Traversal
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* Update data_structures/binary_tree/inorder_tree_traversal_2022.py
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* Updated
* Updated
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* Updated and removed print statement
removed the print from inorder function
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* Add Catalan number to maths
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* renames prime functions and occurances in comments
* changes implementation of primality testing to be uniform
* adds static typing as per conventions
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* Get rid of the Union
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* Get rid of the Union
* Remove the redundant pre-commit runs.
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* Added average absolute deviation
* Formats program with black
* reruns updated pre commit
* Update average_absolute_deviation.py
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* The black formatter is no longer beta
* pre-commit autoupdate
* pre-commit autoupdate
* Remove project_euler/problem_145 which is killing our CI tests
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* Fix type annotations for linked_stack.py
* Replace Optional with inline union type
* Rename linked_stack to stack_with_singly_linked_list
* Rename stack_using_dll to stack_with_doubly_linked_list
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* [mypy] Fix type annotation in euler_method.py
In line with issue #4052.
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* New solution for Euler problem 67
A faster and memory efficient solution based on the template of sol1.py.
Modified the solution to be more memory efficient while reading and generating the array
and during the solution finding.
No conditions and straightforward logic.
* added return type hint
* Update project_euler/problem_067/sol2.py
Preferring comprehensions over map
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* Update sol2.py
Self explanatory variable names
* Updated sol2 to problem 067 in directory
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* Fixed extra line
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* Financial: principle -> principal
The originally invested amount of money: `principal`
-- https://www.grammarly.com/blog/principle-principal/
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* 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!
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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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* Remove exception detail from doctest
These details are configuration dependant so should be removed according to https://docs.python.org/3/library/doctest.html
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* Update and rename check_valid_ip_address.py to is_ip_v4_address_valid.py
New test cases that the algorithm must detect:
* [ ] an octet much bigger than 255
* [ ] an octet is negative
* [ ] number of octets is less than 4
* [ ] number of octets is greater than 4
* [ ] an octet is a letter
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* Add two more tests to is_ip_v4_address_valid.py
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* boruvka.py: A few simplifications and f-strings
Python f-strings simplify the code and [should speed up execution](https://www.scivision.dev/python-f-string-speed).
@srkchowdary2000 Your review, please.
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* fixup! Streamline the test
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* Added the matrix_exponentiation.py file in maths directory
* Implemented the requested changes
* Update matrix_exponentiation.py
* resolve merge conflict with upstream branch
* add new line at end of file
* add wavelet_tree
* fix isort issue
* updating DIRECTORY.md
* fix variable names in wavelet_tree and correct typo
* Add type hints and variable renaming
* Update data_structures/binary_tree/wavelet_tree.py
Add doctests to placate the algorithm-bot, thanks to @cclauss.
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* Move doctest to individual functions and reformat code
* Move common test array to the global scope and reuse in tests
* MMove test array to global scope and minor linting changes
* Correct the failing pytest tests
* MUse built-in list for type annotation
* Update wavelet_tree.py
* types-requests
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* Update wavelet_tree.py
* # type: ignore
* # type: ignore
* Update decrypt_caesar_with_chi_squared.py
* ,
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* Hacktoberfest: Add greedy_coin_change.py file
added the file in greedy_methods folder to implement the same method
Altered the code according to the changes that were requested.
* Added doctests.
doctests added to the function find_minimum_change.
* Added Greedy change file in Maths folder.
* updating DIRECTORY.md
* Deleted Greedy Method Folder
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* Update greedy_coin_change.py
* fix: black formatting issues
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* GitHub Actions: fast-fail on black formatting issues
Give fast feedback to contributors https://github.com/psf/black#github-actions
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* Add graham scan algorithm
* Fix argument name p with point
* Add tests in inner function
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* Fix graham scan for isort --profile=black
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* Added solution for Project Euler problem 107
* Doctests and better variable names
* Type hints
* Small edits
* Forward reference for typing hint
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* Added solution for Project Euler problem 59
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* Formatting, type hints, no more evil map functions
* Doctests
* Added doctests for Project Euler problem 59
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* Added solution for Project Euler problem 085.
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* Minor tweaks to Project Euler problem 85
* Variable comments for project euler problem 85
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* Added solution for Project Euler problem 180
* Fixed minor details in Project Euler problem 180
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* Added static typing to backtracking algorithms
* Ran psf/black to fix some minor issues.
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* Added solution for Project Euler problem 77.
* Update docstrings, doctest, type annotations and 0-padding in directory name. Reference: #3256
* Implemented lru_cache, better type hints, more doctests for problem 77
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* updating DIRECTORY.md
* Added solution for Project Euler problem 77. Fixes: 2695
* Update docstrings, doctest, type annotations and 0-padding in directory name. Reference: #3256
* Implemented lru_cache, better type hints, more doctests for problem 77
* better variable names
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* add solution for euler problem 89
* updates to accommodate euler solution guideline updates
* use more descriptive vars
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* Add type hints, documentation and tests.
* Update searches/ternary_search.py
Sort collection and remove the assertion logic.
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* Remove assert sorted logic.
* Add assertion list is ordered.
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* updating DIRECTORY.md
* Format with black.
* Change names of variables to descriptive names
* Remove print in doctests
* Fix variables to snake_case notation.
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* add solution to Project Euler problem 206
* Add solution to Project Euler problem 205
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* updating DIRECTORY.md
* Revert "Add solution to Project Euler problem 205"
This reverts commit 64e3d36cab.
* Revert "add solution to Project Euler problem 206"
This reverts commit 53568cf4ef.
* add solution for project euler problem 207
* updating DIRECTORY.md
* add type hint for output of helper function
* Correct default parameter value in solution
* use descriptive variable names and remove problem solution from doctest Fixes: #2695
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* Add solution for Project Euler 65,
* Add URL to problem 65 and don't pass in parameter to solution()
* Remove solution() tests
* Add tests for solution(), add fstring and positional arg for solution
* Rename directory and problem number to 065
* Remove directory
* Move up explanation to module code block
* Move solution() below helper function, rename variables
* Add Patience Sort
* fix code for pre-commit
* Fix params def
* Adding new line at end of file
* Remove Trailing Whitespace
* Adding space between the methods of the Stack class
* Removing Trailing Whitespace
* Ordering Imports
* Adding url patience sort
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* Tighten up quicksort()
* updating DIRECTORY.md
* str does not support .pop()
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* Revert recent changes to .pre-commit-config.yaml
We must continue to insist that algorithmic functions can not print() as discussed in CONTRIBUTING.md.
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* Add solution for Project Euler 62
* Add doctests and annotate function params and return values for get_digits()
* Add extra newline between functions to fix flake8 errors
* Add extra newlines between function names
* Add missing return type for solution()
* Remove parenthesis from if statement
* Remove parentheses from while loop
* Add to explanation and fix second Travis build
* Compress get_digits(), add tests for solution(), add fstring and positional arg for solution()
* Remove input param when calling solution()
* Remove test case for the answer
* adding solution to problem 80
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* fixing spell check
* updating sol as per comments
* Add reference link to the problem
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* test/graphs/kruskal: adding a test case to verify the correctness of the algorithm
Fixes#2128
* grahps/kruskal: running psf/black
* graphs/kruskal: read edges in a friendlier fashion
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* Update minimum_spanning_tree_kruskal.py
* fixup! Format Python code with psf/black push
* Update test_min_spanning_tree_kruskal.py
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* Use self-documenting option instead of cryptic option
@mateuszz0000 Your review, please. Pretend that you do not know what `-L` stands for. How many keystrokes and clicks does it take to confirm the purpose of this option?
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* Add solution and test files for project euler 54
* Update sol1.py
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* Fix: use proper path to open files
* Commit suggestions:
- Use list comprehension instead of map
- Sort imports using isort
* Changes made as suggested (simplified a lot):
- List and set comprehension instead of itemgetter
- Using enumerate as it's easy to read
- Divided into list of card values and set of card suit as set will
remove all the duplicate values. So, no need for double indexing.
- Add test for testing multiple calls to five_high_straight function
* Add suggestions and simplified:
- Split generate_random_hands function into two:
- First will generate a random hand
- Second, which will be called, will return a generator object
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* Updated problem_04 in project_euler
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* That number is larger than our acceptable range.
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* * support negative number
* add different version
* fixup! Format Python code with psf/black push
* sum(int(c) for c in str(abs(n)))
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* PIL.Image.point() takes an int, not a float
@furkanatesli Trying to remove these warnings from our Travis CI build logs...
https://travis-ci.com/github/TheAlgorithms/Python/builds/178602503#L809
* fixup! Format Python code with psf/black push
* Revert changes to change_brightness.py
* updating DIRECTORY.md
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* black format
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* fixes
* fixup! Format Python code with psf/black push
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