Commit Graph

77 Commits

Author SHA1 Message Date
Marcos Cannabrava
a191f89fe2
Fix Non Recursive Depth First Search (#2207)
* Fix Non Recursive Depth First Search

* Unindent docstring

* Reindent docstring by 1 space

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

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-09-11 16:23:26 +02:00
Du Yuanchao
4d0a8f2355
Optimized recursive_bubble_sort (#2410)
* optimized recursive_bubble_sort

* Fixed doctest error due whitespace

* reduce loop times for optimization

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-09-10 10:31:26 +02:00
Tapajyoti Bose
aa46639cbc
Added Kruskal's Algorithm (more organized than the one present) (#2218)
* Added Kruskal's Algorithm

* Added Type Hints

* fixup! Format Python code with psf/black push

* Added Type Hints V2

* Implemented suggestions + uniform naming convention

* removed redundant variable (self.nodes)

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-08-12 12:16:17 +02:00
Christian Clauss
1fb1fdd130
requirements.txt: Unpin numpy (#2287)
* requirements.txt: Unpin numpy

* fixup! Format Python code with psf/black push

* Less clutter

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-08-06 17:50:23 +02:00
Arin Khare
c6c9f4707b
Karger's Algorithm (#2237)
* Add implementation of Karger's Algorithm

* Remove print statement from karger's algorithm function

* Fix style issues in graphs/karger.py

* Change for loops to set comprehensions where appropriate in graphs/karger.py
2020-08-01 09:30:34 +05:30
KARTHIKEYAN ANBARASU
e292ddb5ec
Update basic_graphs.py (#1990)
* Update basic_graphs.py

missing return statement line no:223.

* Update basic_graphs.py

Co-authored-by: vinayak <itssvinayak@gmail.com>
2020-07-13 09:17:13 +05:30
Marcos Cannabrava
728c0df355
Fix typo: Adjancent -> Adjacent (#2184) 2020-07-06 22:00:07 -05:00
Christian Clauss
2c75a7b3dd
Numerous fixes to directed_and_undirected_(weighted)_graph.py (#2182)
* Numerous fixes to directed_and_undirected_(weighted)_graph.py

* dict.keys() is almost never need in modern Python
2020-07-06 19:31:04 +02:00
Christian Clauss
5f4da5d616
isort --profile black . (#2181)
* updating DIRECTORY.md

* isort --profile black .

* Black after

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-07-06 09:44:19 +02:00
Christian Clauss
cd3e8f95a0
isort --profile black --recursive . (#2170)
* isort --profile black --recursive .

* Update codespell.yml

* typo: vertices

* typo: Explanation

* typo: Explanation

* Fix typos
2020-07-06 08:48:18 +05:30
Akash Shroff
25d9d819a2
Gale Shapley Algorithm (#2100)
* Gale Shapley Algorithm

Implementation of a Nobel prize-winning algorithm that determines a stable matching in a bipartite graph.

* Update graphs/gale_shapley_bigraph.py

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

* Fixed some flake8 issues.

* Updated it to donors and recipients

* description changes

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

* description changes

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

* description changes

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

* Edited the line lengths

* Update gale_shapley_bigraph.py

* Update gale_shapley_bigraph.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-07-05 11:21:32 +02:00
vinayak
2d3d660155
black fixes and Travis CI fixes (#2160)
* black format

* updating DIRECTORY.md

* fixes

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-07-02 20:02:15 +05:30
wuyudi
d2fa91b18e
Add url and typing hint for BFS (#2156)
* Add typing for bfs

* Add url for BFS

* rename the function

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

* Update graphs/bfs.py

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

* Change the return value type of bfs

* change the function name.

change all instances of bfs() to breadth_first_search().

* change the function name in annotate

* Add one more blank line.

* Delete one blank line.

* Delete one blank line.

I've read the https://www.flake8rules.com/rules/W391.html, and still don't know how to do it. I've tried using 0 ,1,2 blank lines...

* Update graphs/bfs.py

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

* Update graphs/bfs.py

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

* Rename bfs.py to breadth_first_search_2.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-06-25 17:54:41 +02:00
Nika Losaberidze
fb3a228d26
Strongly connected components (#2114)
* Implement strongly connected components for graph algorithms

* fixup! Format Python code with psf/black push

* Delete trailing whitespace

* updating DIRECTORY.md

* Add doctests and typehints

* Remove unnecessary comments, change variable names

* fixup! Format Python code with psf/black push

* Change undefined variable's name

* Apply suggestions from code review

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

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
2020-06-17 18:16:54 +02:00
Nika Losaberidze
2bbdc3bfe7
Implement connected components algorithm for graphs (#2113)
* Implement connected components algorithm for graphs

* fixup! Format Python code with psf/black push

* Add parameters and return values annotations with Python type hints

* updating DIRECTORY.md

* Add doctests and typehints

* Remove unnecessary comments, change variable names

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-06-17 18:15:24 +02:00
Christian Clauss
f97af65579
Blacken our code (#2125)
* Blacken

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-06-17 06:59:38 +08:00
beqakd
924ef9b7d8
implementation of entropy algorithm. (#2110)
* implementation of entropy algorithm.

* add tests, fix requested changes

* open_file() --> analyze_text()

* Create bidirectional_breadth_first_search.py

* # type: ignore

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-06-16 21:36:57 +02:00
Erwin Lejeune
a5c246793c
Graphs : Bidirectional Breadth-First Search (#2057)
* implement bidirectional breadth first

* remove useless import

* remove trailing whitespaces
2020-06-16 17:10:22 +02:00
Christian Clauss
9316e7c014
Set the Python file maximum line length to 88 characters (#2122)
* flake8 --max-line-length=88

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-06-16 10:09:19 +02:00
Nitisha Bharathi
0e619065e7
added Boruvka's MST algorithm (#2026)
* added Boruvka's MST algorithm

* Add files via upload

* fixup! Format Python code with psf/black push

* Updated Boruvka with doctest

* updating DIRECTORY.md

* Update minimum_spanning_tree_boruvka.py

* No blank line in doctest

* <BLANKLINE>

* Avoid mutable default values

https://docs.python-guide.org/writing/gotchas/

* Update minimum_spanning_tree_boruvka.py

* Avoid mutable default values

* fixup! Format Python code with psf/black push

* Update minimum_spanning_tree_boruvka.py

* Update minimum_spanning_tree_boruvka.py

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
2020-05-25 15:10:54 +02:00
Christian Clauss
1f8a21d727
Tighten up psf/black and flake8 (#2024)
* Tighten up psf/black and flake8

* Fix some tests

* Fix some E741

* Fix some E741

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-05-22 08:10:11 +02:00
Erwin Lejeune
21ed8968c0
Fixes in Bidirectional A* (#2020)
* implement bidirectional astar

* add type hints

* add wikipedia url

* format with black

* changes from review

* fix collision check

* Add testmod()

* # doctest: +NORMALIZE_WHITESPACE

* Codespell: euclidean

* Codespell: coordinates

* Codespell: traversal

* Codespell: remaining

Co-authored-by: John Law <johnlaw.po@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
2020-05-21 21:50:52 +02:00
Erwin Lejeune
dc596d23a9
Graphs : Greedy Best First (#2018)
* implement greedy best first

* implement Greedy Best First Search

* review changes

* add doctests

* >>> gbf.search()  # doctest: +NORMALIZE_WHITESPACE

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-05-20 23:25:48 +02:00
Erwin Lejeune
1f2d607e56
Graphs : Bidirectional A* (#2015)
* implement bidirectional astar

* add type hints

* add wikipedia url

* format with black

* changes from review
2020-05-20 12:20:22 +05:30
siva1098
7469fb6edd
Add graphs/frequent_pattern_graph_miner.py (#1866)
* Add files via upload

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Whitespace changes

* Format with psf/black

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-05-07 23:30:24 +02:00
Sanders Lin
308505f18f
Add shortest path by BFS (#1870)
* Create breadth_first_search_shortest_path.py

* updating DIRECTORY.md

* Reduce side effect of `shortest_path`

For the sake of future testing and documentation -

* fixup! Format Python code with psf/black push

* Fix typo `separately`

* Change to get() from dictionary

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Move graph to the top

* fixup! Format Python code with psf/black push

* Add doctest for shortest path

* Add doctest for BFS

* fixup! Format Python code with psf/black push

* Add typings for breadth_first_search_shortest_path

* fixup! Format Python code with psf/black push

* Remove assert from doctests

* Add blank line to doctest

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: John Law <johnlaw.po@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
Co-authored-by: John Law <johnlaw@linux.com>
2020-05-01 07:24:32 +02:00
Sanders Lin
c92a520956
Update breadth_first_search.py (#1869) 2020-04-19 19:26:52 +05:30
Sanders Lin
7aaf79cc23
Initialize set with source in DFS (#1872)
* Update dfs.py

* Add type hints, rearrange doc-strings and comments

* fixup! Format Python code with psf/black push

* dfs -> depth_first_search

Co-Authored-By: Christian Clauss <cclauss@me.com>

* dfs -> depth_first_search

* Add doctest for DFS

* fixup! Format Python code with psf/black push

* Rename dfs.py to depth_first_search_dictionary.py

* updating DIRECTORY.md

* Rename depth_first_search_dictionary.py to depth_first_search_dfs.py

* updating DIRECTORY.md

* Rename depth_first_search.py to depth_first_search_2.py

* updating DIRECTORY.md

* Rename depth_first_search_dfs.py to depth_first_search.py

* updating DIRECTORY.md

Co-authored-by: John Law <johnlaw.po@gmail.com>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
2020-04-17 20:05:29 +02:00
Sanders Lin
d2e8e6215e
Update g_topological_sort.py (#1873) 2020-04-16 12:34:14 +02:00
matkosoric
7f04e5cd34
contribution guidelines checks (#1787)
* spelling corrections

* review

* improved documentation, removed redundant variables, added testing

* added type hint

* camel case to snake case

* spelling fix

* review

* python --> Python # it is a brand name, not a snake

* explicit cast to int

* spaces in int list

* "!= None" to "is not None"

* Update comb_sort.py

* various spelling corrections in documentation & several variables naming conventions fix

* + char in file name

* import dependency - bug fix

Co-authored-by: John Law <johnlaw.po@gmail.com>
2020-03-04 13:40:28 +01:00
onlinejudge95
7b7c1a0135
Fixes unused variable errors in LGTM (#1746)
* Fixes unsed variable errors in LGTM

* Fixes integer check

* Fixes failing tests
2020-02-11 13:59:09 +05:30
Kyle
724b7d2198 Add Prim's algorithm with min heap (#1704) 2020-01-22 02:46:03 +08:00
Christian Clauss
bfcb95b297
Create codespell.yml (#1698)
* fixup! Format Python code with psf/black push

* Create codespell.yml

* fixup! Format Python code with psf/black push
2020-01-18 13:24:33 +01:00
Christian Clauss
28419cf839 pyupgrade --py37-plus **/*.py (#1654)
* pyupgrade --py37-plus **/*.py

* fixup! Format Python code with psf/black push
2020-01-03 22:25:36 +08:00
Kyle
5f57ac975f Add docstr and algorithm to BFS shortest path module (#1637)
* Add docs and type alias to bfs_shortest_path.py

* Add bfs_shortest_path_distance algorithm

* Make requested changes
2019-12-19 10:40:16 +01:00
Christian Clauss
26b0803319
Simplify sudoku.is_completed() using builtin all() (#1608)
* Simplify sudoku.is_completed() using builtin all()

Simplify __sudoku.is_completed()__ using Python builtin function [__all()__](https://docs.python.org/3/library/functions.html#all).

* fixup! Format Python code with psf/black push

* Update sudoku.py

* fixup! Format Python code with psf/black push

* Old style exception -> new style for Python 3

* updating DIRECTORY.md

* Update convex_hull.py

* fixup! Format Python code with psf/black push

* e.args[0] = "msg"

* ValueError: could not convert string to float: 'pi'

* Update convex_hull.py

* fixup! Format Python code with psf/black push
2019-12-08 22:42:17 +01:00
GeorgeChambi
9eb50cc223 Improved readability (#1615)
* improved readability

* further readability improvements

* removed csv file and added f
2019-12-07 06:39:59 +01:00
Bruno Santos
415c9f5e65 Improve prim.py (#1226)
* suiting PEP8

* create auxiliary function

* running example

* updating DIRECTORY.md
2019-12-01 06:13:28 +01:00
John Law
28c02a1f21
Improve bellman_ford.py (#1575)
* Fix out of range error in bellman_ford.py

* Update bellman_ford.py

* fixup! Format Python code with psf/black push

* Enhance the print function

* fixup! Format Python code with psf/black push
2019-11-19 13:52:55 -08:00
JakobZhao
82a11d7f31 Fix bug in bellman_ford.py (#1544) 2019-11-10 17:01:38 +08:00
Ankur Chattopadhyay
7592cba417 psf/black code formatting (#1421)
* added sol3.py for problem_20

* added sol4.py for problem_06

* ran `black .` on `\Python`
2019-10-22 19:13:48 +02:00
Daniel Melo
906c985de3 Create dinic.py (#1396)
* Create dinic.py

Dinic's algorithm for maximum flow

* Update dinic.py

Changes made.
2019-10-22 11:37:43 +02:00
Phyllipe Bezerra
455509acee Add Topological Sort (#1302)
* add topological sort

* fix topological sort?

* running black

* renaming file
2019-10-18 08:13:58 +02:00
William Zhang
9eac17a408 psf/black code formatting (#1277) 2019-10-05 10:14:13 +05:00
Hector S
2304e31994 Fixing lgtm issue in basic graphs (#1141)
* Added print function into matrix_multiplication_addition.py and removed blank space in data_structures/binary tree directory

* Removed .vs/ folder per #893

* Rename matrix_multiplication_addition.py to matrix_operation.py

* Fixing lgtm issue in basic_graphs per ##1024

* Fixed lgtm issue per @cclauss recommendation in #1024
2019-08-20 07:02:43 +02:00
Christian Clauss
47a9ea2b0b
Simplify code by dropping support for legacy Python (#1143)
* Simplify code by dropping support for legacy Python

* sort() --> sorted()
2019-08-19 15:37:49 +02:00
Christian Clauss
3c8e9314b6 Travis CI: Add a flake8 test for unused imports (#1038) 2019-07-25 13:19:00 +05:30
Christian Clauss
0f09530707 dijkstra.py: Use r"strings" to fix two pylint warnings (#1052)
```
=============================== warnings summary ===============================
graphs/dijkstra.py:81
  /home/travis/build/TheAlgorithms/Python/graphs/dijkstra.py:81: DeprecationWarning: invalid escape sequence \ 
    """
graphs/dijkstra.py:97
  /home/travis/build/TheAlgorithms/Python/graphs/dijkstra.py:97: DeprecationWarning: invalid escape sequence \ 
    """
-- Docs: https://docs.pytest.org/en/latest/warnings.html
=================== 126 passed, 7 warnings in 19.35 seconds ====================
```
2019-07-21 00:31:08 +08:00
cclauss
7cdda931fd
Travis CI: Add pytest --doctest-modules graphs (#1018) 2019-07-17 06:07:25 +02:00
Bruno Simas Hadlich
267b5eff40 Added doctest and more explanation about Dijkstra execution. (#1014)
* Added doctest and more explanation about Dijkstra execution.

* tests were not passing with python2 due to missing __init__.py file at number_theory folder

* Removed the dot at the beginning of the imported modules names because 'python3 -m doctest -v data_structures/hashing/*.py' and 'python3 -m doctest -v data_structures/stacks/*.py' were failing not finding hash_table.py and stack.py modules.

* Moved global code to main scope and added doctest for project euler problems 1 to 14.

* Added test case for negative input.

* Changed N variable to do not use end of line scape because in case there is a space after it the script will break making it much more error prone.

* Added problems description and doctests to the ones that were missing. Limited line length to 79 and executed python black over all scripts.

* Changed the way files are loaded to support pytest call.

* Added __init__.py to problems to make them modules and allow pytest execution.

* Added project_euler folder to test units execution

* Changed 'os.path.split(os.path.realpath(__file__))' to 'os.path.dirname()'
2019-07-17 01:09:53 +02:00