* Queue implementation using two Stacks
* fix typo in queue/queue_on_two_stacks.py
* add 'iterable' to queue_on_two_stacks initializer
* make queue_on_two_stacks.py generic class
* fix ruff-UP007 in queue_on_two_stacks.py
* enhance readability in queue_on_two_stacks.py
* Create queue_by_two_stacks.py
---------
Co-authored-by: Christian Clauss <cclauss@me.com>
* pre-commit: Upgrade psf/black for stable style 2023
Updating https://github.com/psf/black ... updating 22.12.0 -> 23.1.0 for their `2023 stable style`.
* https://github.com/psf/black/blob/main/CHANGES.md#2310
> This is the first [psf/black] release of 2023, and following our stability policy, it comes with a number of improvements to our stable style…
Also, add https://github.com/tox-dev/pyproject-fmt and https://github.com/abravalheri/validate-pyproject to pre-commit.
I only modified `.pre-commit-config.yaml` and all other files were modified by pre-commit.ci and psf/black.
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
---------
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.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>
* added radix tree to data structures
* added doctests
* solved flake8
* added type hints
* added description for delete function
* Update data_structures/trie/radix_tree.py
* Update radix_tree.py
* Update radix_tree.py
* Update radix_tree.py
Co-authored-by: Alex de la Cruz <alex@Alexs-MacBook-Air.local>
Co-authored-by: Christian Clauss <cclauss@me.com>
* Description of DOuble hasing
* Fix sheebang
* Update double_hash.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update double_hash.py
Co-authored-by: Christian Clauss <cclauss@me.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
* Add files via upload
* Delete permutations.cpython-310.pyc
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update permutations.py
* Update permutations.py
* Add files via upload
* Delete permutations.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update permutations.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update permutations.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update permutations.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update data_structures/arrays/permutations.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update permutations.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update permutations.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update data_structures/arrays/permutations.py
Co-authored-by: Chris O <46587501+ChrisO345@users.noreply.github.com>
* Update permutations.py
* Update permutations.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update permutations.py
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.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: Implement binary tree path sum (#7135)
* [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_path_sum.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* refactor: Rename `dfs` to `depth_first_search`
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
* Different views of binary tree added
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* mypy errors resolved
* doc test for remaining functions
* Flake8 comments resolved
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Example moved in if block
* doctest cases added
* Cases from if block removed
* Update data_structures/binary_tree/diff_views_of_binary_tree.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update data_structures/binary_tree/diff_views_of_binary_tree.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* PR Comments resolved
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* flake8 warning resolved
* Changes revered
* flake8 issue resolved
* Put the diagrams just above the doctests
* Update diff_views_of_binary_tree.py
* Update diff_views_of_binary_tree.py
* I love mypy
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.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>
* refactor: Make code more understandable
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.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 <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
* Add typing
hacktoberfest
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
* Update hash_table.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update hash_table.py
* Update hash_table.py
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
* Update heap_generic.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* Update heap_generic.py
* Update heap_generic.py
* Update heap_generic.py
* Update heap_generic.py
* Update heap_generic.py
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
* Enhance fenwick_tree.py
* Change update to add in fenwick_tree.py
* Some changes
* Fix bug
* Add O(N) initializer to FenwickTree
* Add get method to Fenwick Tree
* Change tree in Fenwick Tree
* Add rank query to FenwickTree
* Add get_array method to FenwickTree
* Add some tests
* Update data_structures/binary_tree/fenwick_tree.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update data_structures/binary_tree/fenwick_tree.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update data_structures/binary_tree/fenwick_tree.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* change `List` to `list`
Co-authored-by: Christian Clauss <cclauss@me.com>
* renames prime functions and occurances in comments
* changes implementation of primality testing to be uniform
* adds static typing as per conventions
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* MAINT: Used f-string method
Updated the code with f-string methods wherever required for a better and cleaner understanding of the code.
* Updated files with f-string method
* Update rsa_key_generator.py
* Update rsa_key_generator.py
* Update elgamal_key_generator.py
* Update lru_cache.py
I don't think this change is efficient but it might tackle the error as the error was due to using long character lines.
* Update lru_cache.py
* Update lru_cache.py
Co-authored-by: cyai <seriesscar@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.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 <${GITHUB_ACTOR}@users.noreply.github.com>
* [mypy] Fix type annotations for binary tree traversals in data structures
* Change variable name and update level_order_1 to use a deque
Using a deque instead of a list here, because since we are removing from the beginning of the list, the deque will be more efficient.
* remove duplicate function
* Update data_structures/binary_tree/binary_tree_traversals.py
Co-authored-by: John Law <johnlaw.po@gmail.com>
* fix function name at line 137
* Update data_structures/binary_tree/binary_tree_traversals.py
Co-authored-by: John Law <johnlaw.po@gmail.com>
* Update data_structures/binary_tree/binary_tree_traversals.py
Co-authored-by: John Law <johnlaw.po@gmail.com>
* Remove type alias and use the new syntax
* Update data_structures/binary_tree/binary_tree_traversals.py
Co-authored-by: John Law <johnlaw.po@gmail.com>
* Remove prints inside functions and return lists
Co-authored-by: John Law <johnlaw.po@gmail.com>
* Updated Pop function
Added underflow condition
* Update Pop Function
Added condition to check underflow of stack
* Update stack.py
* if not self.stack: raise StackUnderflowError
* Add doctests
* StackUnderflowError
* ..., not ....
* Update stack.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Fix type annotations for trie.py
* Add strict type annotations to trie.py
Annotate return type for all functions and type for "nodes"
* updating DIRECTORY.md
* Format trie.py
Co-authored-by: github-actions <${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 <${GITHUB_ACTOR}@users.noreply.github.com>
This is a followup to https://github.com/TheAlgorithms/Python/pull/4973#issuecomment-933117382
As per given suggestion, I've added type hints to certain methods that don't have them. I have also added documentation and example doctests as a usage example for (most of) those that don't have them.
I have also added another test case following the previous test case's format. I noticed that the existing test case from previous pull request might be redundant with the ones I've made, so I decided to create a specific situation where the linked list would have to keep different kinds of data types for each node, in `test_singly_linked_list_2` test function.
Some minor changes in strings has been done to keep things consistent with other parts of the document. If it is undesirable, please let me know.
* Added the matrix_exponentiation.py file in maths directory
* Implemented the requested changes
* Update matrix_exponentiation.py
* resolve merge conflict with upstream branch
* add new line at end of file
* add wavelet_tree
* fix isort issue
* updating DIRECTORY.md
* fix variable names in wavelet_tree and correct typo
* Add type hints and variable renaming
* Update data_structures/binary_tree/wavelet_tree.py
Add doctests to placate the algorithm-bot, thanks to @cclauss.
Co-authored-by: Christian Clauss <cclauss@me.com>
* Move doctest to individual functions and reformat code
* Move common test array to the global scope and reuse in tests
* MMove test array to global scope and minor linting changes
* Correct the failing pytest tests
* MUse built-in list for type annotation
* Update wavelet_tree.py
* types-requests
* updating DIRECTORY.md
* Update wavelet_tree.py
* # type: ignore
* # type: ignore
* Update decrypt_caesar_with_chi_squared.py
* ,
* Update decrypt_caesar_with_chi_squared.py
Co-authored-by: Christian Clauss <cclauss@me.com>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Aniruddha Bhattacharjee <aniruddha@Aniruddhas-MacBook-Air.local>
* update doubly linked list
* reformat code
add more test
* add test to iter
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
* Create evaluate_postfix_notations.py
Adding in the evaluate postfix notation using Stacks
one of the common use with simple stack question
creating a new file for the data structure of stacks
* Create evaluate_postfix_notations.py
Adding in the evaluate postfix notation using Stacks
one of the common use with simple stack question
creating a new file for the data structure of stacks
* Delete evaluate_postfix_notations.py
* Evaluate postfix expression stack clean approach
Sending in the PR again as the Previous request failed in pre commit
* Update evaluate_postfix_notations.py
* Update evaluate_postfix_notations.py
Made changes as per the required for fixing the failing pre-commits.
* Update evaluate_postfix_notations.py
Made changes as suggested by @cclauss
* Update evaluate_postfix_notations.py
fixed pre-commit fails
* Update evaluate_postfix_notations.py
fixing pre-commit fails
* Update evaluate_postfix_notations.py
Deleted trailing white spaces causing pre-commits to fail
* Update data_structures/stacks/evaluate_postfix_notations.py
Co-authored-by: Christian Clauss <cclauss@me.com>
* Update data_structures/stacks/evaluate_postfix_notations.py
Co-authored-by: Christian Clauss <cclauss@me.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
