179 Commits

Author SHA1 Message Date
a8aeabdf18 [mypy] Type annotations for graphs/finding_bridges.py and graphs/random_graph_generator.py (#5795)
* [mypy] Annotate `graphs/finding_bridges.py`

* Remove from excluded in `mypy.ini`

* Add doctest.testmod()

* psf/black formatting

* Annotations for `graphs/random_graph_generator.py`

* Remove from excluded in `mypy.ini`

* Resolve merge conflict

* Resolve merge conflict

* Update mypy.ini

* Update mypy.ini

* Remove from excluded
2021-11-08 18:18:33 +01:00
ac4bdfd66d [mypy] Fix type annotations in graphs/boruvka.py (#5794)
* Fix type annotations in boruvka.py

* Remove graphs/boruvka.py|

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2021-11-08 21:47:09 +08:00
dbddac74d3 Fix graphs/finding_bridges.py algorithm + doctests (#5765)
* Fix finding_bridges algorithms + tests

* update type hints

* Better, more obvious condition fix

* fix prev commit + more tests

* Short explanation + url

* Update finding_bridges.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-11-04 17:51:31 +01:00
e6cf13cc03 Update queue implementation (#5388)
* Update queue implementation

Popping the first element of a list takes O(n) time.
Using a cyclic queue takes O(1) time.

* Add queue changes from extra files

* Update indentation

* Add empty line between imports

* Fix lines

* Apply suggestions from code review

Co-authored-by: John Law <johnlaw.po@gmail.com>

Co-authored-by: John Law <johnlaw.po@gmail.com>
2021-10-30 19:06:25 +08:00
ba71005484 Add random graph generator (#5240)
* added complete graph generator function

* added doctest, type hints, wikipedia explanation

* added return type hint for function complete_graph

* added descriptive name for the parameter: n

* random graph generator with doctest and type hints

* validated using pre-commit

* Delete complete_graph_generator.py

* fixed doctest

* updated following reviews

* simplified the code following reviews

* fixed doctest and solved consistency issues

* consistency fixes
2021-10-25 15:59:52 +08:00
bd9464e4ac mandelbrot.py: Commenting out long running tests (#5558)
* mandelbrot.py: Commenting out long running tests

* updating DIRECTORY.md

* Comment out 9 sec doctests

* Update bidirectional_breadth_first_search.py

* Comment out slow tests

* Comment out slow (9.15 sec) pytests...

* # Comment out slow (4.20s call) doctests

* Comment out slow (3.45s) doctests

* Update miller_rabin.py

* Update miller_rabin.py

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2021-10-23 18:15:30 +02:00
c50f0c56aa add check_cycle.py (#5475)
* add check_cycle.py

* Update graphs/check_cycle.py

Co-authored-by: John Law <johnlaw.po@gmail.com>

* Update check_cycle.py

* Apply suggestions from code review

Co-authored-by: John Law <johnlaw.po@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
2021-10-23 12:29:42 +02:00
061614880d [mypy] fix type annotations for graphs/a_star.py #4052 (#5224)
* [mypy] fix type annotations for graphs/a_star.py #4052

* updating DIRECTORY.md

* Add from __future__ import anotations

* rename delta by DIRECTIONS

Co-authored-by: John Law <johnlaw.po@gmail.com>

* Rename delta by DIRECTIONS in all code

* Enclose script in __main__ code block

* Refactor DIRECTIONS with comments for readibility

* Delete heuristic example comment

* Do not print, return all values

* Fix multilines

* fix black

* Update a_star.py

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: John Law <johnlaw.po@gmail.com>
2021-10-22 18:07:28 +08:00
08d4d226d7 [mypy] Fix type annotations for graphs/boruvka (#4867)
* fix: type annotations for pypi 🏷️

Fixes #4052

* updating DIRECTORY.md

* 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>
2021-10-17 18:26:12 +02:00
1d457be29d Matching min vertex cover (#5326)
* matching algorithm for min vertex cover problem

* fixed hint on row 37

* changed variable names

* provided doctest for get_edges function

* Removed dict.keys() iteration

* Update matching_min_vertex_cover.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-10-15 17:03:57 +02:00
908cb4f1e7 Greedy min vertex cover hacktoberfest (#5241)
* added complete graph generator function

* added doctest, type hints, wikipedia explanation

* added return type hint for function complete_graph

* added descriptive name for the parameter: n

* random graph generator with doctest and type hints

* added Greedy min vertex algorithm

* pre-commit hook(s) made changes

* Delete complete_graph_generator.py

* Delete random_graph_generator.py

* fixed doctest

* updated commit following highligths

* fixed following pre-commit highlights

* modified variables names
2021-10-15 15:04:38 +02:00
cecf43d648 Pyupgrade to Python 3.9 (#4718)
* Pyupgrade to Python 3.9

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2021-09-07 13:37:03 +02:00
097f830238 Avoid mutable default arguments (#4691) 2021-08-31 06:56:15 +02:00
78a5d3a558 boruvka.py: A few simplifications and f-strings (#4660)
* 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>
2021-08-24 15:27:31 +02:00
4ed7c7f09c Added Borůvka's algorithm. (#4645)
* Added Borůvka's algorithm.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree. Solved Test Cases Errors.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree. Solved Test Cases Errors.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree. Solved Test Cases Errors.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree. Solved Test Cases Errors.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree. Solved Test Cases Errors.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree. Solved Test Cases Errors.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree. Solved Test Cases Errors.Removed WhiteSpaces.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree. Code Changes.

* Added Borůvka's algorithm, a graph algorithm that finds the minimum spanning tree. Code Changes.
2021-08-23 12:35:20 +02:00
imp
4545270ace [mypy] Fix type annotations for graphs (#4622)
* Fix mypy error for frequent_pattern_graph_miner.py

* Fix mypy error for markov_chain.py
2021-08-18 12:44:26 +02:00
cd987372e4 Fix multi heuristic astar algo (#4612) 2021-08-13 09:10:24 +02:00
d668c172b0 Refactor graph_initialization at basic_graph.py (#4601) 2021-08-11 22:48:53 +02:00
da71184b04 Fix mypy errors at mst_kruskal (#4581) 2021-08-02 14:40:48 +02:00
a5bcf0f674 Fix mypy errors at even_tree algo (#4579) 2021-07-29 15:14:35 +02:00
40d85d5443 Modified the a_star [dot] py for making readable (#4576) 2021-07-28 12:50:21 +02:00
a4b7d12262 Fix mypy errors at greedy best first algo (#4575) 2021-07-27 13:21:00 +02:00
c5003a2c46 Fix mypy errors at bfs_shortest_path algo (#4572) 2021-07-27 10:09:17 +02:00
7634cf0d60 Fix mypy errors at gale_shapely_bigraph (#4568) 2021-07-26 14:45:40 +02:00
7342b33658 Fix mypy erros at strongly connected component (#4558) 2021-07-21 07:59:18 +02:00
bc09ba9abf Fix mypy errors at graph_list (#4557) 2021-07-20 13:24:27 +02:00
4a2216b69a Fix mypy errors at bidirectional_a_star (#4556) 2021-07-20 09:36:14 +02:00
307ffd8c29 Fix mypy errors at bidirectional_bfs (#4531) 2021-07-12 08:10:07 +02:00
256c319ce2 Fix mypy errors at kruskal_2 (#4528) 2021-07-08 08:46:43 +02:00
4412eafaac [mypy] Fix mypy error (#4524) 2021-07-06 09:08:33 +02:00
95862303a6 Fix mypy at prims_algo_2 (#4527) 2021-07-05 08:23:18 +02:00
86baec0bc9 Fix mypy errors at bfs_zero_one_shortest_path (#4521) 2021-07-02 13:52:26 +02:00
62d4418851 Fix mypy error and add more doctest on bfs_shortest_path (#4512) 2021-06-29 19:44:35 +08:00
3ea5a13334 Add doctest and fix mypy type annotation in bellman ford (#4506) 2021-06-24 08:50:23 +02:00
977511b3a3 Add/fix mypy type annotations at BFS, DFS in graphs (#4488) 2021-06-10 22:36:41 +05:30
ce99859ad5 Move files to various folders (#4286)
* Move files to cellular_automata

* Rename other/davis–putnam–logemann–loveland.py to backtracking/davis–putnam–logemann–loveland.py

* Rename other/markov_chain.py to graphs/markov_chain.py

* undid rename: need to fix mypy first
2021-03-22 10:54:04 +01:00
03d34350f6 Graph list patch (#4113)
* new implementation for adjacency list graph

* add example code for undirected graph

* reduce length to 88 columns max to fix build errors7

* fix pre commit issues

* replace print_list method with __str__

* return object in add_edge method to enable fluent syntax

* improve class docstring and include doctests

* add end of file line

* fix pre-commit issues

* remove __str__ method

* trigger build

* Update graph_list.py

* Update graph_list.py

Co-authored-by: gnc <chidieberen1999@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
2021-01-12 14:41:48 +01:00
c39be1d8b8 update graphs/breadth_first_search.py (#3908)
* update graphs/breadth_first_search.py

- update naming style to snake_case
- add type hints

* add doctests
2020-12-09 17:21:46 +08:00
fa364dfd27 Changed how the Visited nodes are tracked (#3811)
Updated the code to track visited Nodes with Set data structure instead of Lists to bring down the lookup time in visited  from O(N) to O(1)
as doing O(N) lookup each time in the visited List will become significantly slow when the graph grows
2020-11-21 12:28:52 +05:30
83a24cb06d Update graphs/graph_list.py (#3813)
- update naming style to snake_case
- add type hints
2020-11-08 20:34:01 +05:30
4fa8c9d4b4 Update graphs/depth_first_search_2.py (#3799)
- update naming style to snake_case
- add type hints
2020-10-29 08:35:31 +08:00
5be77f33f7 Add 0-1-bfs. (#3285)
* Add 0-1-bfs.

* fixup! Add 0-1-bfs.

* fixup! Add 0-1-bfs.

* Check edge weights.

* Check edge vertecies.
2020-10-24 23:07:04 +02:00
9b95e4f662 Pyupgrade to python3.8 (#3616)
* Upgrade to Python 3.8 syntax

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-10-21 12:46:14 +02:00
5b024f4dd5 BROKEN BUILD: Fix a failing precommit test (#3344)
* Fix a failing precommit test

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-10-16 00:33:25 +02:00
cc050dbf5b test/graphs/prim: writing a test case to verify the correctness of the algorithm (#2454) 2020-10-15 21:10:35 +02:00
83b825027e Graphs/kruskal: adding doctest & type hints (#3101)
* graphs/kruskal: add doctest & type hints

this is a child of a previous PR #2443

its ancestor is #2128

* updating DIRECTORY.md

* graphs/kruskal: fix max-line-length violation

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-10-15 21:08:52 +02:00
02d3ab81bd feat: added prim's algorithm v2 (#2742)
* feat: added prim's algorithm v2

* updating DIRECTORY.md

* chore: small tweaks

* fixup! Format Python code with psf/black push

* chore: added algorithm descriptor

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-10-10 12:18:52 +05:30
c2a5033f9e graphs/kruskal: add a test case to verify the correctness, fix styles (#2443)
* 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

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

* Update minimum_spanning_tree_kruskal.py

* fixup! Format Python code with psf/black push

* Update test_min_spanning_tree_kruskal.py

* updating DIRECTORY.md

Co-authored-by: Christian Clauss <cclauss@me.com>
Co-authored-by: John Law <johnlaw.po@gmail.com>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-10-08 20:21:48 +08:00
48357cea5b Add __init__.py files in all the directories (#2503) 2020-09-28 19:42:36 +02:00
9200a2e543 from __future__ import annotations (#2464)
* from __future__ import annotations

* fixup! from __future__ import annotations

* fixup! from __future__ import annotations

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-09-23 13:30:13 +02:00