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Christian Clauss 366a0f1839

Fix validate_initial_digits of credit_card_validator.py (#5600 )

* Fix validate_initial_digits of credit_card_validator.py

@Bhargavishnu I think that I broke the logic of validate_initial_digits which should require that credit_card_number[0] is 3 before checking that credit_card_number[1] is 4, 5, or 7.  Please verify the new changes and the new test cases to make sure that this is correct.  Thanks!

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

2021-10-26 14:32:34 +02:00

.github

It is OK to test ./scripts (#5290 )

2021-10-14 18:19:47 +02:00

arithmetic_analysis

Pyupgrade to Python 3.9 (#4718 )

2021-09-07 13:37:03 +02:00

audio_filters

Simple audio filters (#5230 )

2021-10-23 23:19:25 +02:00

backtracking

Correct grammar of comment in backtracking/hamiltonian_cycle.py (#4868 )

2021-10-02 15:51:53 +02:00

bit_manipulation

Fix typos in Sorts and Bit_manipulation (#4949 )

2021-10-20 16:42:32 +08:00

blockchain

Pyupgrade to Python 3.9 (#4718 )

2021-09-07 13:37:03 +02:00

boolean_algebra

[mypy] Fix type annotations for boolean_algebra/quine_mc_cluskey.py (#5489 )

2021-10-22 17:45:19 +08:00

cellular_automata

add implementation of Nagel and Schrekenberg algo (#5584 )

2021-10-26 09:57:49 +02:00

ciphers

[mypy] annotate ciphers (#5569 )

2021-10-26 12:35:21 +02:00

compression

[mypy] annotate compression (#5570 )

2021-10-26 12:29:27 +02:00

computer_vision

[mypy] annotate computer_vision (#5571 )

2021-10-23 23:26:21 +02:00

conversions

add bin_to_hexadecimal (#5156 )

2021-10-25 15:58:24 +08:00

data_structures

Update pop function (#5544 )

2021-10-23 15:18:09 +02:00

digital_image_processing

Added morphological operations, fixes: #5197 (#5199 )

2021-10-16 16:32:40 +02:00

divide_and_conquer

Remove unnecessary branch (#4824 )

2021-10-12 00:33:06 +08:00

dynamic_programming

[mypy] Fix type annotations for dynamic programming (#4687 )

2021-09-03 11:49:23 +02:00

electronics

Add implementation of Coulomb's Law (#4897 )

2021-10-22 11:52:39 +08:00

file_transfer

[mypy] fix small folders (#4292 )

2021-03-23 16:51:50 +01:00

fractals

mandelbrot.py: Commenting out long running tests (#5558 )

2021-10-23 18:15:30 +02:00

fuzzy_logic

Add __init__.py files in all the directories (#2503 )

2020-09-28 19:42:36 +02:00

genetic_algorithm

Add __init__.py files in all the directories (#2503 )

2020-09-28 19:42:36 +02:00

geodesy

Fix imports for all namespace packages (#2506 )

2020-09-28 23:41:04 +02:00

graphics

New fractals folder (#4277 )

2021-03-20 06:49:30 +01:00

graphs

Add random graph generator (#5240 )

2021-10-25 15:59:52 +08:00

greedy_methods

Added Optimal Merge Pattern Algorithm (#5274 )

2021-10-14 12:51:13 +02:00

hashes

Implementation of SHA-256 using Python (#5532 )

2021-10-23 15:20:52 +02:00

knapsack

Pyupgrade to Python 3.9 (#4718 )

2021-09-07 13:37:03 +02:00

linear_algebra

added Schur complement to linear algebra (#4793 )

2021-10-18 18:46:47 +02:00

machine_learning

Pyupgrade to Python 3.9 (#4718 )

2021-09-07 13:37:03 +02:00

maths

Improved prime_numbers.py (#5592 )

2021-10-26 09:21:44 +02:00

matrix

Pyupgrade to Python 3.9 (#4718 )

2021-09-07 13:37:03 +02:00

networking_flow

Add __init__.py files in all the directories (#2503 )

2020-09-28 19:42:36 +02:00

neural_network

[mypy] fix small folders 2 (#4293 )

2021-03-26 12:21:16 +01:00

other

[mypy] Adds type annotations in other/activity_selection #4052 (#5590 )

2021-10-26 12:10:37 +02:00

physics

Add algorithm for N-body simulation - retry (#4298 )

2021-04-04 13:23:48 +02:00

project_euler

Improve Project Euler problem 058 solution 1 (#4782 )

2021-10-25 16:07:10 +08:00

quantum

Approve functions used as default arguments (#4699 )

2021-08-31 07:56:19 +02:00

scheduling

Pyupgrade to Python 3.9 (#4718 )

2021-09-07 13:37:03 +02:00

scripts

Wavelet tree (#4267 )

2021-06-08 22:49:33 +02:00

searches

Pyupgrade to Python 3.9 (#4718 )

2021-09-07 13:37:03 +02:00

sorts

Fix typos in Sorts and Bit_manipulation (#4949 )

2021-10-20 16:42:32 +08:00

strings

Fix validate_initial_digits of credit_card_validator.py (#5600 )

2021-10-26 14:32:34 +02:00

web_programming

Get user tweets (#5593 )

2021-10-26 10:05:13 +02:00

.coveragerc

Add pytest-cov (#1578 )

2019-11-17 19:37:58 +01:00

.gitattributes

Create .gitattributes for Cross OS compatibility (#3410 )

2020-10-17 07:25:25 +02:00

.gitignore

contribution guidelines checks (#1787 )

2020-03-04 13:40:28 +01:00

.gitpod.yml

Change gitpod configuration for python3. (#1827 )

2020-04-07 12:20:08 +02:00

.pre-commit-config.yaml

fix(ci): Update pre-commit hooks and apply new black (#4359 )

2021-04-26 07:46:50 +02:00

CONTRIBUTING.md

Fixed grammatical errors in CONTRIBUTING.md (#5555 )

2021-10-23 14:54:41 +02:00

DIRECTORY.md

Fix validate_initial_digits of credit_card_validator.py (#5600 )

2021-10-26 14:32:34 +02:00

LICENSE.md

Update LICENSE.md (#4210 )

2021-02-19 19:15:19 +01:00

mypy.ini

Updated mypy.ini, removed ok folders that were excluded (#5331 )

2021-10-15 23:57:41 +02:00

pytest.ini

Move validate_solutions and add durations flag to pytest.ini (#3704 )

2020-10-24 19:07:33 +05:30

README.md

docs: renovate README (#4620 )

2021-09-29 23:34:35 +05:30

requirements.txt

Get user tweets (#5593 )

2021-10-26 10:05:13 +02:00

README.md

The Algorithms - Python

All algorithms implemented in Python - for education

Implementations are for learning purposes only. As they may be less efficient than the implementations in the Python standard library, use them at your discretion.

Getting Started

Read through our Contribution Guidelines before you contribute.

Community Channels

We're on Discord and Gitter! Community channels are great for you to ask questions and get help. Please join us!

List of Algorithms

See our directory for easier navigation and better overview of the project.