* updating DIRECTORY.md
* Fix mypy errors in lorentz_transformation_four_vector.py
* Remove unused symbol vars
* Add function documentation and rewrite algorithm explanation
Previous explanation was misleading, as the code only calculates Lorentz
transformations for movement in the x direction (0 velocity in the y and
z directions) and not movement in any direction
* updating DIRECTORY.md
* Update error message for speed
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* updating DIRECTORY.md
* Format local_weighted_learning.py doctests for clarity
* Refactor local_weighted_learning.py to use np.array instead of np.mat
The np.matrix class is planned to be eventually depreciated in favor of
np.array, and current use of the class raises warnings in pytest
* Update local_weighted_learning.py documentation
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* add backtracking word search
* updating DIRECTORY.md
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* review notes fixes
* additional fixes
* add tests
* small cleanup
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* small cleanup 2
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* 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>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
* add prefix sum
* updating DIRECTORY.md
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
* Refactor bottom-up function to be class method
* Add type hints
* Update convolve function namespace
* Remove depreciated np.float
* updating DIRECTORY.md
* updating DIRECTORY.md
* updating DIRECTORY.md
* updating DIRECTORY.md
* Renamed function for consistency
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Chris O <46587501+ChrisO345@users.noreply.github.com>
* Adopt Python >= 3.8 assignment expressions using auto-walrus
* updating DIRECTORY.md
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
* feat: Binary tree node sum (#7020)
* feat: Sum of all nodes in binary tree explanation (#7020)
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update data_structures/binary_tree/binary_tree_node_sum.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* refactor: Change replace method with `__iter__` overriding (#7020)
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
* Binary Search Tree Inorder Traversal
* updating DIRECTORY.md
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Binary Search Tree Inorder Traversal v2
* Binary Search Tree Inorder Traversal
* Binary Search Tree Inorder Traversal
* Update inorder_tree_traversal_2022.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update inorder_tree_traversal_2022.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update inorder_tree_traversal_2022.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update data_structures/binary_tree/inorder_tree_traversal_2022.py
* Update data_structures/binary_tree/inorder_tree_traversal_2022.py
* Updated
* Updated
* Update inorder_tree_traversal_2022.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update inorder_tree_traversal_2022.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update data_structures/binary_tree/inorder_tree_traversal_2022.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Updated and removed print statement
removed the print from inorder function
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
* Add Catalan number to maths
* updating DIRECTORY.md
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
* renames prime functions and occurances in comments
* changes implementation of primality testing to be uniform
* adds static typing as per conventions
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Get rid of the Union
* updating DIRECTORY.md
* Get rid of the Union
* Remove the redundant pre-commit runs.
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Added average absolute deviation
* Formats program with black
* reruns updated pre commit
* Update average_absolute_deviation.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* The black formatter is no longer beta
* pre-commit autoupdate
* pre-commit autoupdate
* Remove project_euler/problem_145 which is killing our CI tests
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Fix type annotations for linked_stack.py
* Replace Optional with inline union type
* Rename linked_stack to stack_with_singly_linked_list
* Rename stack_using_dll to stack_with_doubly_linked_list
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* [mypy] Fix type annotation in euler_method.py
In line with issue #4052.
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* New solution for Euler problem 67
A faster and memory efficient solution based on the template of sol1.py.
Modified the solution to be more memory efficient while reading and generating the array
and during the solution finding.
No conditions and straightforward logic.
* added return type hint
* Update project_euler/problem_067/sol2.py
Preferring comprehensions over map
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update sol2.py
Self explanatory variable names
* Updated sol2 to problem 067 in directory
* Update project_euler/problem_067/sol2.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update project_euler/problem_067/sol2.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Fixed extra line
Co-authored-by: Christian Clauss <cclauss@me.com>
* Financial: principle -> principal
The originally invested amount of money: `principal`
-- https://www.grammarly.com/blog/principle-principal/
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* 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
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* fix: fix mypy errors
Update binary_search_tree `arr` argument to be typed as a list
within `find_kth_smallest` function
Update return type of `merge_two_binary_trees` as both inputs can
be None which means that a None type value can be returned from
this function
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Remove exception detail from doctest
These details are configuration dependant so should be removed according to https://docs.python.org/3/library/doctest.html
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Update and rename check_valid_ip_address.py to is_ip_v4_address_valid.py
New test cases that the algorithm must detect:
* [ ] an octet much bigger than 255
* [ ] an octet is negative
* [ ] number of octets is less than 4
* [ ] number of octets is greater than 4
* [ ] an octet is a letter
* updating DIRECTORY.md
* Add two more tests to is_ip_v4_address_valid.py
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: John Law <johnlaw.po@gmail.com>
* 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.
* updating DIRECTORY.md
* fixup! Streamline the test
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Added the matrix_exponentiation.py file in maths directory
* Implemented the requested changes
* Update matrix_exponentiation.py
* resolve merge conflict with upstream branch
* add new line at end of file
* add wavelet_tree
* fix isort issue
* updating DIRECTORY.md
* fix variable names in wavelet_tree and correct typo
* Add type hints and variable renaming
* Update data_structures/binary_tree/wavelet_tree.py
Add doctests to placate the algorithm-bot, thanks to @cclauss.
Co-authored-by: Christian Clauss <cclauss@me.com>
* Move doctest to individual functions and reformat code
* Move common test array to the global scope and reuse in tests
* MMove test array to global scope and minor linting changes
* Correct the failing pytest tests
* MUse built-in list for type annotation
* Update wavelet_tree.py
* types-requests
* updating DIRECTORY.md
* Update wavelet_tree.py
* # type: ignore
* # type: ignore
* Update decrypt_caesar_with_chi_squared.py
* ,
* Update decrypt_caesar_with_chi_squared.py
Co-authored-by: Christian Clauss <cclauss@me.com>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Aniruddha Bhattacharjee <aniruddha@Aniruddhas-MacBook-Air.local>
* 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
* updating DIRECTORY.md
* Update greedy_coin_change.py
* fix: black formatting issues
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com>
* GitHub Actions: fast-fail on black formatting issues
Give fast feedback to contributors https://github.com/psf/black#github-actions
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Add graham scan algorithm
* Fix argument name p with point
* Add tests in inner function
* updating DIRECTORY.md
* Fix graham scan for isort --profile=black
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Added solution for Project Euler problem 107
* Doctests and better variable names
* Type hints
* Small edits
* Forward reference for typing hint
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Added solution for Project Euler problem 59
* updating DIRECTORY.md
* Formatting, type hints, no more evil map functions
* Doctests
* Added doctests for Project Euler problem 59
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Added solution for Project Euler problem 085.
* updating DIRECTORY.md
* Minor tweaks to Project Euler problem 85
* Variable comments for project euler problem 85
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Added solution for Project Euler problem 180
* Fixed minor details in Project Euler problem 180
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Added static typing to backtracking algorithms
* Ran psf/black to fix some minor issues.
* updating DIRECTORY.md
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: John Law <johnlaw.po@gmail.com>
* 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
* updating DIRECTORY.md
* 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
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* add solution for euler problem 89
* updates to accommodate euler solution guideline updates
* use more descriptive vars
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Add type hints, documentation and tests.
* Update searches/ternary_search.py
Sort collection and remove the assertion logic.
Co-authored-by: Christian Clauss <cclauss@me.com>
* Remove assert sorted logic.
* Add assertion list is ordered.
* updating DIRECTORY.md
* updating DIRECTORY.md
* Format with black.
* Change names of variables to descriptive names
* Remove print in doctests
* Fix variables to snake_case notation.
Co-authored-by: Christian Clauss <cclauss@me.com>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* add solution to Project Euler problem 206
* Add solution to Project Euler problem 205
* updating DIRECTORY.md
* updating DIRECTORY.md
* Revert "Add solution to Project Euler problem 205"
This reverts commit 64e3d36cab.
* Revert "add solution to Project Euler problem 206"
This reverts commit 53568cf4ef.
* add solution for project euler problem 207
* updating DIRECTORY.md
* add type hint for output of helper function
* Correct default parameter value in solution
* use descriptive variable names and remove problem solution from doctest Fixes: #2695
Co-authored-by: nico <esistegal-aber@gmx.de>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* 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
Co-authored-by: jvnascimento <nascimento783@gmail.com>
* Tighten up quicksort()
* updating DIRECTORY.md
* str does not support .pop()
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Revert recent changes to .pre-commit-config.yaml
We must continue to insist that algorithmic functions can not print() as discussed in CONTRIBUTING.md.
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* 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
