Commit Graph

37 Commits

Author SHA1 Message Date
DukicDev
31b34af9fa
Correct grammar in backtracking/n_queens_math.py (#4869) 2021-10-02 15:37:28 +02:00
DukicDev
6341f351aa
Fix comments in backtracking/coloring.py (#4857) 2021-10-01 23:48:47 +02:00
Christian Clauss
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
GDWR
c824b90ead
Remove redundent function in Backtracking Sudoku (#4499)
* Remove redundent function

After reviewing this code, I've noticed that the `is_completed` function is a redundant operation.
Increasing the number of loops required for each step of the sudoku solver. 
This should remove n² operations where n is the width of the grid.

* Update sudoku.py

Remove additional newline
2021-06-10 22:14:41 +05:30
Dhruv Manilawala
f3ba9b6c50
[mypy] Add/fix type annotations for backtracking algorithms (#4055)
* Fix mypy errors for backtracking algorithms

* Fix CI failure
2020-12-24 18:16:21 +05:30
John Law
25164bb638
Fix mypy in #2684 (#3987)
* Fix mypy in #2684

* fix pre-commit
2020-11-29 23:00:31 +05:30
Jenia Dysin
e07766230d
Add static typing to backtracking algorithms (#2684)
* 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>
2020-11-30 00:19:50 +08:00
Tapajyoti Bose
3324bbb94b
Added sudoku type hints [Hacktober Fest] (#3124)
* chore(sudoku): added type hints [HACKTOBER-FEST]

* updating DIRECTORY.md

* chore: added matrix type alias

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-10-10 12:32:51 +05:30
Tapajyoti Bose
8bd4ca67be
Added all sub sequence type hints [Hacktober Fest] (#3123)
* updating DIRECTORY.md

* chore(all-subsequence): added type hints [HACKTOBER-FEST]

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-10-10 11:49:36 +05:30
Dhruv
48357cea5b
Add __init__.py files in all the directories (#2503) 2020-09-28 19:42:36 +02:00
Du Yuanchao
b81fcef66b
Fixed linked list bug (#2481)
* * fixed __getitem__() function
* add test

* * updated doctests
* updated __setitem__() func

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-09-25 18:08:57 +02:00
Abdujabbar Mirkhalikov
53c2a24587
added type hints and doctests for minimax algorithm (#2478)
* added type hints and doctests for minimax algorithm

* Update backtracking/minimax.py

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

* last fix

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-09-25 15:16:05 +02:00
Christian Clauss
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
Hasenn
10aa214fcb
Docstrings and formatting improvements (#2418)
* Fix spelling in docstrings

* Improve comments and formatting

* Update print statement to reflect doctest change

* improve phrasing and apply black

* Update rat_in_maze.py

    This method is recursive starting from (i, j) and going in one of four directions:
    up, down, left, right.
    If a path is found to destination it returns True otherwise it returns False.

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-09-14 14:40:27 +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
David Aaron Banda Gutierrez
05c14c6be8
N queens math (#2175)
* add new file for another solution to the n queens problem

* Add the code for the algorithm, add comments and add at the top a general explanation

* Update backtracking/n_queens_math.py

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

* Update backtracking/n_queens_math.py

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

* Update backtracking/n_queens_math.py

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

* Update backtracking/n_queens_math.py

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

* No newline at the end of the file

* Type hints

* whitespaces fixed

* Fixed whitespaces

* Add type hints

* CodeSpell fixed

* update

* All changes made except changing the board variable to local

* Add doctest

* Update

* Update

* Update

* Update n_queens_math.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-07-10 10:30:48 +02:00
Christian Clauss
fdc5bee7af
Euler problem 551 sol 1: Reduce McCabe code complexity (#2141)
* Euler problem 551 sol 1: Reduce McCabe code complexity

As discussed in #2128

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-06-22 14:16:12 +02:00
Tapajyoti Bose
b9e7c891e2
Added (Open) Knight Tour Algorithm (#2132)
* Added (Open) Knight Tour Algorithm

* Implemented Suggestions
2020-06-18 11:30:24 +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
Christian Clauss
0b028aa32a
Fix line break after binary operator (#2119)
* Fix line break after binary operator

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-06-15 15:47:02 +02:00
beqakd
23dae9ceab
implement rat in maze algorithm. (#2106)
* implement rat in maze algorithm.

* style changes

* fix trailing whitespace

* add test, fix style

* fix style

* method change

* minor changes

* style changes

* return solved

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-06-15 15:03:30 +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
Saba Pochkhua
a859934105
Hamiltonian Cycle (#1930)
* add skeleton code

* add doctests

* add tests for util function + implement wrapper

* full implementation

* add ability to add starting verex for algorithm

* add static type checking

* add doc tests to validation method

* bug fix: doctests expected failing

* Update hamiltonian_cycle.py

* Update hamiltonian_cycle.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-05-02 21:13:56 +02:00
Saba Pochkhua
b01e5b78a3
Graph coloring (#1921)
* add skeleton code

* add doctests

* add mainc function pseudo code and tests (ToDo: write Implementation)

* typo fixes

* implement algorithm

* add type checking

* add wikipedia link

* typo fix

* update range syntax

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

* change indexed iteration checking to any()

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

* fix: swap import and documentation sections

* fix: change return none to return empty list

* remove unnecessary import (Union)

* change: remove returning boolean indicating problem was solved or not

* remove unnecessary import (Tuple)

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-04-30 23:23:52 +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
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
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
Christian Clauss
b838f1042c Fix indentation contains tabs (flake8 E101,W191) (#1573) 2019-11-15 23:05:00 -08:00
William Zhang
9eac17a408 psf/black code formatting (#1277) 2019-10-05 10:14:13 +05:00
adith bharadwaj
f3c0b132bc Added sudoku solving program in backtracking algorithms (#1128)
* Added sudoku solver in backtracking

* Added sudoku solver program

* Added sudoku solver

* Added sudoku solver

* Format with black, add doctests, cleanup main
2019-08-13 15:51:06 +02:00
obelisk0114
628794d89d Add combinations (#1015)
* Update Bucket Sort time complexity analysis

* Add combinations

* Adding doctest

* Fix doctest problem
2019-07-14 07:45:54 +02:00
Aditi Agarwal
4ff2a9dd4e minimax (#947)
* minimax.py

minimax algorithm is used for game like tic tac toe. It traces the path and selects the optimal move.

* minimax.py

Minimax is used in decision making and game theory to find the optimal move for a player, when your opponent also plays optimally. It is widely used in games like Tic-Tac-Toe, Chess.

* Delete minimax.py

* Update minimax.py

* Minimax is a backtracking algorithm that is used in game theory to find the optimal move for a player, assuming that your opponent also plays optimally
2019-07-07 06:59:58 +02:00
Erfan Alimohammadi
69bed59036
Fix backtrack time complexity (#965)
* Update backtracking/all_permutations.py
2019-07-06 20:01:52 +04:30
Erfan Alimohammadi
839160f83a Generate all permutations of a sequence, using backtracking (#962)
* Fix typo

* Add all_permutations algorithm to backtracking directory
2019-07-06 16:19:36 +03:00
Erfan Alimohammadi
cc4cf3ece7
Generate all subsequences using backtracking (#961)
* Add all_subsequences to backtracking directory
2019-07-06 17:43:50 +04:30
Hetal Kuvadia
831558d38d #945 Backtracking Algorithms (#953)
* Adding nqueens.py for backtracking

* Adding sum_of_subsets.py for backtracking

* Update nqueens.py

* Rename nqueens.py to n_queens.py

* Deleting /other/n_queens.py
2019-07-05 14:18:36 +05:30