Commit Graph

370 Commits

Author SHA1 Message Date
Bama Charan Chhandogi
e798e5acde
add reverse k group linkedlist (#9323)
* add reverse k group linkedlist

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* update

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* update

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* update

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* update

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* update

* Update reverse_k_group.py

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* Update reverse_k_group.py

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* Update reverse_k_group.py

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2023-10-02 02:19:39 +02:00
aryan1165
18cdbc4165
binary_search_traversals.py made memory-friendly using generators. Fixes #8725 completely. (#9237)
* Made binary tree memory-friendly using generators based travels. Fixes
#8725

* Made binary tree memory-friendly using generators based travels. Fixes
#8725

* Fixed pre-commit errors
2023-10-01 12:54:05 -04:00
Muhammad Umer Farooq
bacad12a1f
[NEW ALGORITHM] Rotate linked list by K. (#9278)
* Rotate linked list by k.

* Rotate linked list by k.

* updated variable name.

* Update data_structures/linked_list/rotate_linked_list_by_k.py

Co-authored-by: Christian Clauss <cclauss@me.com>

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* Update data_structures/linked_list/rotate_linked_list_by_k.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update data_structures/linked_list/rotate_linked_list_by_k.py

* Make Node a dataclass

---------

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2023-10-01 18:11:16 +02:00
aryan1165
eaa87bd791
Made binary tree memory-friendly using generators based travels. Fixes (#9208)
#8725
2023-10-01 04:43:48 -04:00
aryan1165
320d895b86
Fixed permute_recursive() by passing nums.copy(). Fixes #9014 (#9161)
* Fixes #9014

* Fixed permute_recursive() by passing nums.copy()
2023-10-01 00:06:15 -04:00
Saksham Saha
c9b4b8002f
Added an add at position subroutiune to linked list (#9020)
* added addAtPosition to simple linked list

* added addAtPosition to simple linked list

* modified the add function to take an optional position command

* fixed type safety errors:

* fixed type safety errors:

* fixed type safety errors:

* fixed type safety errors:

* fixed size error

* fixed size error

* added doctest and updates the else after checking if posiiton argument less than 0 or not

* added doctest and updates the else after checking if posiiton argument less than 0 or not

* fixed the contributing.md mistake

* added doctest for out of bounds position value, both negative and positive
2023-09-08 08:20:28 -04:00
pre-commit-ci[bot]
421ace81ed
[pre-commit.ci] pre-commit autoupdate (#9013)
* [pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.0.285 → v0.0.286](https://github.com/astral-sh/ruff-pre-commit/compare/v0.0.285...v0.0.286)
- [github.com/tox-dev/pyproject-fmt: 0.13.1 → 1.1.0](https://github.com/tox-dev/pyproject-fmt/compare/0.13.1...1.1.0)

* updating DIRECTORY.md

* Fis ruff rules PIE808,PLR1714

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2023-08-29 15:18:10 +02:00
Arijit De
0a9438071e
Updated postfix_evaluation.py to support Unary operators (#8787)
* Updated postfix_evaluation.py to support Unary operators and floating point numbers Fixes #8754 and #8724

Also merged evaluate_postfix_notations.py and postfix_evaluation.py into postfix_evaluation.py

Signed-off-by: Arijit De <arijitde2050@gmail.com>

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* Updated postfix_evaluation.py to support Unary operators and floating point numbers. Fixes #8754 and formatted code to pass ruff and black test.

Also merged evaluate_postfix_notations.py and postfix_evaluation.py into postfix_evaluation.py which fixes #8724 and made sure it passes doctest

Signed-off-by: Arijit De <arijitde2050@gmail.com>

* Fixed return type hinting required by pre commit for evaluate function

Signed-off-by: Arijit De <arijitde2050@gmail.com>

* Changed line 186 to return only top of stack instead of calling the get_number function as it was converting float values to int, resulting in data loss. Fixes #8754 and #8724

Signed-off-by: Arijit De <arijitde2050@gmail.com>

* Made the requested changes

Also changed the code to make the evaluate function first convert all the numbers and then process the valid expression.

* Fixes #8754, #8724 Updated postfix_evaluation.py

postfix_evaluation.py now supports Unary operators and floating point numbers.
Also merged evaluate_postfix_notations.py and postfix_evaluation.py into postfix_evaluation.py which fixes #8724. Added a doctest example with unary operator.

* Fixes #8754, #8724 Updated postfix_evaluation.py

postfix_evaluation.py now supports Unary operators and floating point numbers.
Also merged evaluate_postfix_notations.py and postfix_evaluation.py into postfix_evaluation.py which fixes #8724. Added a doctest example with unary operator.

* Fixes #8754, #8724 Updated the parse_token function of postfix_evaluation.py

ostfix_evaluation.py now supports Unary operators and floating point numbers.
Also merged evaluate_postfix_notations.py and postfix_evaluation.py into postfix_evaluation.py which fixes #8724. Added a doctest example with unary operator and invalid expression.

* Fixes #8754, #8724 Updated postfix_evaluation.py

postfix_evaluation.py now supports Unary operators and floating point numbers.
Also merged evaluate_postfix_notations.py and postfix_evaluation.py into postfix_evaluation.py which fixes #8724. Added a doctest example with unary operator and invalid expression.

* Update postfix_evaluation.py

* Update postfix_evaluation.py

* Update postfix_evaluation.py

* Update postfix_evaluation.py

* Update postfix_evaluation.py

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2023-08-23 14:36:59 +02:00
Caeden Perelli-Harris
fceacf977f
Fix type errors in permutations (#9007)
* updating DIRECTORY.md

* types(permuations): Rename permute2

* Apply suggestions from code review

Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>

* fix(permutations): Call permute_recursive

* fix(permutations): Correct permutations order

---------

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2023-08-22 02:33:47 -07:00
isidroas
efaf526737
BST and RSA doctest (#8693)
* rsa key doctest

* move doctest to module docstring

* all tests to doctest

* moved is_right to property

* is right test

* fixed rsa doctest import

* Test error when deleting non-existing element

* fixing ruff EM102

* convert property 'is_right' to one-liner

Also use 'is' instead of '=='

Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>

* child instead of children

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* remove type hint

* Update data_structures/binary_tree/binary_search_tree.py

---------

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2023-08-15 16:04:53 -07:00
Tianyi Zheng
ae0fc85401
Fix ruff errors (#8936)
* Fix ruff errors

Renamed neural_network/input_data.py to neural_network/input_data.py_tf
because it should be left out of the directory for the following
reasons:

1. Its sole purpose is to be used by neural_network/gan.py_tf, which is
   itself left out of the directory because of issues with TensorFlow.

2. It was taken directly from TensorFlow's codebase and is actually
   already deprecated. If/when neural_network/gan.py_tf is eventually
   re-added back to the directory, its implementation should be changed
   to not use neural_network/input_data.py anyway.

* updating DIRECTORY.md

* Change input_data.py_tf file extension

Change input_data.py_tf file extension because algorithms-keeper bot is being picky about it

---------

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2023-08-09 13:25:30 +05:30
AmirSoroush
ce218c57f1
fixes #8673; Add operator's associativity check for stacks/infix_to_p… (#8674)
* fixes #8673; Add operator's associativity check for stacks/infix_to_postfix_conversion.py

* fix ruff N806 in stacks/infix_to_postfix_conversion.py

* Update data_structures/stacks/infix_to_postfix_conversion.py

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* Update data_structures/stacks/infix_to_postfix_conversion.py

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---------

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2023-08-01 11:23:34 -07:00
roger-sato
0b0214c42f
Handle empty input case in Segment Tree build process (#8718) 2023-07-31 11:46:30 -07:00
AmirSoroush
384c407a26
Enhance the implementation of Queue using list (#8608)
* enhance the implementation of queue using list

* enhance readability of queue_on_list.py

* rename 'queue_on_list' to 'queue_by_list' to match the class name
2023-07-30 19:07:35 -07:00
AmirSoroush
d4f2873e39
add reverse_inorder traversal to binary_tree_traversals.py (#8726)
* add reverse_inorder traversal to binary_tree_traversals.py

* Apply suggestions from code review

Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>

---------

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2023-07-30 17:54:15 -07:00
Sangmin Jeon
a03b739d23
Fix radix_tree.py insertion fail in ["*X", "*XX"] cases (#8870)
* Fix insertion fail in ["*X", "*XX"] cases

Consider a word, and a copy of that word, but with the last letter repeating twice. (e.g., ["ABC", "ABCC"])
When adding the second word's last letter, it only compares the previous word's prefix—the last letter of the word already in the Radix Tree: 'C'—and the letter to be added—the last letter of the word we're currently adding: 'C'. So it wrongly passes the "Case 1" check, marks the current node as a leaf node when it already was, then returns when there's still one more letter to add.
The issue arises because `prefix` includes the letter of the node itself. (e.g., `nodes: {'C' : RadixNode()}, is_leaf: True, prefix: 'C'`) It can be easily fixed by simply adding the `is_leaf` check, asking if there are more letters to be added.

- Test Case: `"A AA AAA AAAA"`
  - Fixed correct output:
  ```
  Words: ['A', 'AA', 'AAA', 'AAAA']
  Tree:
  - A   (leaf)
  -- A   (leaf)
  --- A   (leaf)
  ---- A   (leaf)
  ```
  - Current incorrect output:
  ```
  Words: ['A', 'AA', 'AAA', 'AAAA']
  Tree:
  - A   (leaf)
  -- AA   (leaf)
  --- A   (leaf)
  ```

*N.B.* This passed test cases for [Croatian Open Competition in Informatics 2012/2013 Contest #3 Task 5 HERKABE](https://hsin.hr/coci/archive/2012_2013/)

* Add a doctest for previous fix

* improve doctest readability
2023-07-24 11:29:05 +02:00
Caeden Perelli-Harris
93fb169627
[Upgrade Ruff] Fix all errors raised from ruff (#8879)
* chore: Fix tests

* chore: Fix failing ruff

* chore: Fix ruff errors

* chore: Fix ruff errors

* chore: Fix ruff errors

* chore: Fix ruff errors

* chore: Fix ruff errors

* chore: Fix ruff errors

* chore: Fix ruff errors

* chore: Fix ruff errors

* chore: Fix ruff errors

* chore: Fix ruff errors

* chore: Fix ruff errors

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* chore: Fix ruff errors

* chore: Fix ruff errors

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* Update cellular_automata/game_of_life.py

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* chore: Update ruff version in pre-commit

* chore: Fix ruff errors

* Update edmonds_karp_multiple_source_and_sink.py

* Update factorial.py

* Update primelib.py

* Update min_cost_string_conversion.py

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2023-07-22 12:05:10 +02:00
pre-commit-ci[bot]
c9ee6ed188
[pre-commit.ci] pre-commit autoupdate (#8853)
* [pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.0.275 → v0.0.276](https://github.com/astral-sh/ruff-pre-commit/compare/v0.0.275...v0.0.276)

* Update double_ended_queue.py

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* Update double_ended_queue.py

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2023-07-04 00:20:35 +02:00
Himanshu Tomar
331585f3f8
Algorithm: Calculating Product Sum from a Special Array with Nested Structures (#8761)
* Added minimum waiting time problem solution using greedy algorithm

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* ruff --fix

* Add type hints

* Added two more doc test

* Removed unnecessary comments

* updated type hints

* Updated the code as per the code review

* Added recursive algo to calculate product sum from an array

* Added recursive algo to calculate product sum from an array

* Update doc string

* Added doctest for product_sum function

* Updated the code and added more doctests

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* Added more test coverage for product_sum method

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2023-06-23 10:26:05 +02:00
Linus M. Henkel
5b0890bd83
Dijkstra algorithm with binary grid (#8802)
* Create TestShiva

* Delete TestShiva

* Implementation of the Dijkstra-Algorithm in a binary grid

* Update double_ended_queue.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update least_common_multiple.py

* Update sol1.py

* Update pyproject.toml

* Update pyproject.toml

* https://github.com/astral-sh/ruff-pre-commit v0.0.274

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2023-06-22 13:49:09 +02:00
Frank-1998
b0f871032e
Fix removing the root node in binary_search_tree.py removes the whole tree (#8752)
* fix issue #8715

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2023-06-18 18:30:06 +02:00
Sundaram Kumar Jha
4a27b54430
Update permutations.py (#8102) 2023-05-31 12:56:59 +12:00
Christian Clauss
4b79d771cd
Add more ruff rules (#8767)
* Add more ruff rules

* Add more ruff rules

* pre-commit: Update ruff v0.0.269 -> v0.0.270

* Apply suggestions from code review

* Fix doctest

* Fix doctest (ignore whitespace)

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2023-05-26 09:34:17 +02:00
Christian Clauss
4c1f876567
Solving the Top k most frequent words problem using a max-heap (#8685)
* Solving the `Top k most frequent words` problem using a max-heap

* Mentioning Python standard library solution in `Top k most frequent words` docstring

* ruff --fix .

* updating DIRECTORY.md

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2023-04-27 23:02:07 +05:30
isidroas
14bdd174bb
Bloom Filter (#8615)
* Bloom filter with tests

* has functions constant

* fix type

* isort

* passing ruff

* type hints

* type hints

* from fail to erro

* captital leter

* type hints requested by boot

* descriptive name for m

* more descriptibe arguments II

* moved movies_test to doctest

* commented doctest

* removed test_probability

* estimated error

* added types

* again hash_

* Update data_structures/hashing/bloom_filter.py

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* from b to bloom

* Update data_structures/hashing/bloom_filter.py

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* Update data_structures/hashing/bloom_filter.py

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* syntax error in dict comprehension

* from goodfather to godfather

* removed Interestellar

* forgot the last Godfather

* Revert "removed Interestellar"

This reverts commit 35fa5f5c4b.

* pretty dict

* Apply suggestions from code review

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2023-04-08 19:39:24 +02:00
Christian Clauss
2f9b03393c
Delete queue_on_two_stacks.py which duplicates queue_by_two_stacks.py (#8624)
* Delete queue_on_two_stacks.py which duplicates queue_by_two_stacks.py

* updating DIRECTORY.md

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2023-04-08 17:46:19 +05:30
amirsoroush
5cb0a000c4
Queue implementation using two Stacks (#8617)
* 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

---------

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2023-04-08 13:41:08 +02:00
amirsoroush
63710883c8
Remove extra len calls in doubly-linked-list's methods (#8600) 2023-04-01 17:53:21 +05:30
amirsoroush
e4d90e2d5b
change space complexity of linked list's __len__ from O(n) to O(1) (#8183) 2023-04-01 08:26:43 +02:00
pre-commit-ci[bot]
3f9150c1b2
[pre-commit.ci] pre-commit autoupdate (#8294)
* [pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/charliermarsh/ruff-pre-commit: v0.0.255 → v0.0.257](https://github.com/charliermarsh/ruff-pre-commit/compare/v0.0.255...v0.0.257)

* Fix PLR1711 Useless  statement at end of function

---------

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2023-03-20 22:16:13 +01:00
Christian Clauss
521fbca61c
Replace flake8 with ruff (#8184) 2023-03-16 13:31:29 +01:00
Christian Clauss
c96241b5a5
Replace bandit, flake8, isort, and pyupgrade with ruff (#8178)
* Replace bandit, flake8, isort, and pyupgrade with ruff

* Comment on ruff rules

* updating DIRECTORY.md

---------

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2023-03-15 13:58:25 +01:00
Andrey
b797e437ae
Add hashmap implementation (#7967) 2023-03-14 01:31:27 +01:00
Christian Clauss
64543faa98
Make some ruff fixes (#8154)
* Make some ruff fixes

* Undo manual fix

* Undo manual fix

* Updates from ruff=0.0.251
2023-03-01 17:23:33 +01:00
Christian Clauss
c909da9b08
pre-commit: Upgrade psf/black for stable style 2023 (#8110)
* 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.

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2023-02-01 18:44:54 +05:30
Christian Clauss
08c2245705
Upgrade to flake8 v6 (#8007)
* Upgrade to flake8 v6

* updating DIRECTORY.md

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2022-11-29 16:56:41 +01:00
Mark Mayo
f32d611689
clean of unnecessary checks, imports, calls (#7993) 2022-11-21 00:00:27 +13:00
Dhruv Manilawala
8bfd1c844b
fix: mypy 0.991 issues (#7988)
* fix: mypy 0.991 issues

* fix: invalid condition for base case
2022-11-15 18:29:14 +01:00
Dhruv Manilawala
3bf86b91e7
fix: no implicit optional (#7984) 2022-11-15 14:55:14 +01:00
Alexander Pantyukhin
7b2eca0243
add distribute coins (#7975)
* add distribute coins

* updating DIRECTORY.md

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* fix review notes

* fix typehint

* fix type in TreeNode

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2022-11-10 15:49:38 +13:00
Caeden Perelli-Harris
daa1c7529a
Raise error not string (#7945)
* ci: Add `B023` to `.flake8` ignores

* refactor: Return `bool`/raise Exception

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Alexander Pantyukhin
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Alexander Pantyukhin
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Christian Clauss
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Alex de la Cruz
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