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95 Commits

Author SHA1 Message Date
Gaurav Jindal
0728cf1128
Added code to merge two trees (#4121) 
* Added code to merge two trees

* Added doctest and type hints

* Added pre-commit
 2021-01-18 13:08:22 +05:30
Christian Clauss
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
Anshraj Shrivastava
e035c6164f
add binary_tree_traversals.py to data_structures (#3297) 
* add binary_tree_traversals.py to data_structures

I have added some interesting binary tree traversing methods.

* Fixed error

* Update data_structures/binary_tree/binary_tree_traversals.py

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

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update data_structures/binary_tree/binary_tree_traversals.py

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

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update data_structures/binary_tree/binary_tree_traversals.py

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

* Update binary_tree_traversals.py

* Update binary_tree_traversals.py

* Update data_structures/binary_tree/binary_tree_traversals.py

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

* Update data_structures/binary_tree/binary_tree_traversals.py

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

* Update binary_tree_traversals.py

* Update data_structures/binary_tree/binary_tree_traversals.py

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

* Update binary_tree_traversals.py

* Doctests and type hints

* Add spaces

* Update binary_tree_traversals.py

* black exclude data_structures/binary_tree/binary_tree_traversals.py

* Add spaces again

* Update binary_tree_traversals.py

Co-authored-by: Christian Clauss <cclauss@me.com>
 2020-10-15 13:09:59 +02:00
Susmith98
dc069580b9
Added binary tree mirror algorithm (#3159) 
* Added binary tree mirror algorithm

* Minor changes

* Resolved comments

* Minor Changes

* resolved comments and updated doctests

* updated doctests

* updating DIRECTORY.md

Co-authored-by: svedire <VedireSusmith_Reddy@intuit.com>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
 2020-10-14 12:21:15 +02:00
Dhruv
48357cea5b
Add __init__.py files in all the directories (#2503) 2020-09-28 19:42:36 +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
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
kanthuc
472f63eaa5
Adding type hints to RedBlackTree (#2371) 
* redblacktree type hints

* fixed type hints to pass flake8
 2020-08-30 21:22:36 +02:00
kanthuc
f8c57130f2
lazy_segment_tree.py-style-fixes (#2347) 
* fixed variable naming and unnecessary type hints

* print(segt)

Co-authored-by: Christian Clauss <cclauss@me.com>
 2020-08-24 09:52:02 +02:00
SiddhantBobde
0bf1f22d37
Added function for finding K-th smallest element in BST (#2318) 
* fixes: #2172

* fixes: #2172

* Added docstrings and type of parameters

* fixed error

* Added type hints

* made changes

* removed capital letters from function name

* Added type hints

* fixed bulid error

* modified comments

* fixed build error
 2020-08-21 12:25:50 +05:30
kanthuc
2eaacee7b4
lowest_common_ancestor.py static type checking (#2329) 
* adding static type checking to basic_binary_tree.py

* Add static type checking to functions with None return type

* Applying code review comments

* Added missing import statement

* fix spaciing

* "cleaned up depth_of_tree"

* Add doctests and then streamline display() and is_full_binary_tree()

* added static typing to lazy_segment_tree.py

* added missing import statement

* modified variable names for left and right elements

* added static typing to lowest_common_ancestor.py

* fixed formatting

* modified files to meet style guidelines, edited docstrings and added some doctests

* added and fixed doctests in lazy_segment_tree.py

* fixed errors in doctests

Co-authored-by: Christian Clauss <cclauss@me.com>
 2020-08-21 06:54:34 +02:00
Du Yuanchao
d687030d9e
fix number_of_digits bug (#2301) 
* fix bug

* test larger negative

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
 2020-08-12 18:32:35 +02:00
kanthuc
d25a926c02
adding static type checking to basic_binary_tree.py (#2293) 
* adding static type checking to basic_binary_tree.py

* Add static type checking to functions with None return type

* Applying code review comments

* Added missing import statement

* fix spaciing

* "cleaned up depth_of_tree"

* Add doctests and then streamline display() and is_full_binary_tree()

Co-authored-by: Christian Clauss <cclauss@me.com>
 2020-08-11 23:38:38 +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
8ab84fd794
Only one carriage return (#2155) 
* updating DIRECTORY.md

* touch

* fixup! Format Python code with psf/black push

* Update word_frequency_functions.py

* updating DIRECTORY.md

* Update word_frequency_functions.py

* Update lfu_cache.py

* Update sol1.py

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
 2020-06-25 19:15:30 +02:00
Markgolzh
c7ca9cf0df
Update avl_tree.py (#2145) 
* Update avl_tree.py

it's true definition of AVL tree,change  left and right rotation,and add avl_tree doctest

* Update avl_tree.py

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update data_structures/binary_tree/avl_tree.py

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

* Update avl_tree.py

update some function name and update doctest

* Update avl_tree.py

change some code format to fit flake8 review

Co-authored-by: Christian Clauss <cclauss@me.com>
 2020-06-25 09:55:13 +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
Christian Clauss
d1b25760bc
Fix psf/black issues than fail the build (#1935) 
* Fix psf/black issues than fail the build

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
 2020-05-03 23:58:44 +02:00
lanzhiwang
853741e518
enhanced segment tree implementation and more pythonic (#1715) 
* enhanced segment tree implementation and more pythonic

enhanced segment tree implementation and more pythonic

* add doctests for segment tree

* add type annotations

* unified processing sum min max segment tre

* delete source encoding in segment tree

* use a generator function instead of returning

* add doctests for methods

* add doctests for methods

* add doctests

* fix doctest

* fix doctest

* fix doctest

* fix function parameter and fix determine conditions
 2020-05-02 21:44:29 +02:00
Christian Clauss
1ad78b2663
Fix invalid escape sequence in binary_search_tree.py (#1920) 
* Fix invalid escape sequence in binary_search_tree.py

data_structures/binary_tree/binary_search_tree.py:156
  /home/travis/build/TheAlgorithms/Python/data_structures/binary_tree/binary_search_tree.py:156: DeprecationWarning: invalid escape sequence \

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
 2020-05-01 02:17:11 +05:30
Joan Martin Miralles
a38e143cf8
Binary search tree using recursion (#1839) 
* Binary search tree using recursion

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
 2020-04-07 18:09:05 +02:00
Prince Gangurde
6043a44ffb
Update basic_binary_tree.py (#1833) 
fixed some grammar mistakes
 2020-04-07 00:59:32 +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
4866b1330b
Fixes black failures from Previous PR (#1751) 
* Fixes black failures from Previous PR

* Fixes equality testing alert

* Fixes call to main() alert

* Fixes unused import
 2020-02-13 02:19:41 +05:30
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
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
e849578e59 Update and rename lca.py to lowest_common_ancestor.py (#1664) 
* Update and rename lca.py to lowest_common_ancestor.py

* fixup! Format Python code with psf/black push
 2020-01-08 21:15:41 +08:00
MadhavCode
46df735cf4 New Code!!(Finding the N Possible Binary Search Tree and Binary Tree from Given N node Number) (#1663) 
* Code Upload

* Code Upload

* Delete n_possible_bst

* Find the N Possible Binary Tree and Binary Tree from given Nth Number of Node.

* Update in Test

* Update and rename n_possible_bst.py to number_of_possible_binary_trees.py

Co-authored-by: Christian Clauss <cclauss@me.com>
 2020-01-07 10:17:35 +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
34c808b375 actions/checkout@v2 (#1643) 
* actions/checkout@v2

https://github.com/actions/checkout/releases

* fixup! Format Python code with psf/black push
 2019-12-26 19:50:12 +08:00
Hocnonsense
81ae5adcc8 Update binary_search_tree.py (#1339) 
* Update binary_search_tree.py

remove some bugs

* Update binary_search_tree.py

* Update binary_search_tree.py

* Update binary_search_tree.py

* Update binary_search_tree.py

* Update binary_search_tree.py

* Update binary_search_tree.py

* testlist = (8, 3, 6, 1, 10, 14, 13, 4, 7)

* Update .travis.yml

Co-authored-by: Christian Clauss <cclauss@me.com>
 2019-12-21 01:44:31 +01:00
Christian Clauss
5df8aec66c
GitHub Action formats our code with psf/black (#1569) 
* GitHub Action formats our code with psf/black

@poyea Your review please.

* fixup! Format Python code with psf/black push
 2019-11-14 19:59:43 +01:00
Jonathan Alberth Quispe Fuentes
7bc0462e79 Non-recursive Segment Tree implementation (#1543) 
* Non-recursive Segment Tree implementation

* Added type hints and explanations links
 2019-11-01 04:00:46 +01:00
Samarth Sehgal
a2a3ca674f Update treap.py (#1455) 2019-10-25 17:56:27 +02:00
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
Hocnonsense
179284a41b Update treap.py (#1358) 
* Update treap.py

check merge()

* Update treap.py

random() is used. its difficult to write doctests
l->left
r->right
key->value
add __repr__ and __str__ in preorder
 2019-10-18 09:39:37 +02:00
Nishant-Ingle
06d736199b Added comment (#1294) 2019-10-07 23:29:14 +05:00
William Zhang
9eac17a408 psf/black code formatting (#1277) 2019-10-05 10:14:13 +05:00
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
89acf5d017 print() is a function just like every other function (#1101) 
* print() is a function just like every other function
 2019-08-06 12:14:23 +02:00
QuantumNovice
c27bd5144f in_static_equilibrium checks if a 2D static system is in equilibrium (#1062) 
* Add files via upload

* Add files via upload

* Create .a

* Add files via upload

* Add files via upload

* Rename static_solver.py to in_static_equilibrium.py

* Delete .a

* Update in_static_equilibrium.py

* Add files via upload

* Add files via upload

* Update in_static_equilibrium.py

* Add files via upload

* Add files via upload

* Add files via upload

* Add files via upload

* pyTests added

* Add files via upload

* Delete red_black_tree.py

* Add files via upload
 2019-07-25 20:38:24 +02:00
Alfonso Rodríguez Pereira
5f991f7740 #315 Renamed all files to snake_case (#993) 2019-07-11 11:16:42 +02:00
Anup Kumar Panwar
4e413c0183 Updated README 2019-07-06 11:11:20 +05:30
Jarred Allen
506bb5ccfe Add Red-Black Binary Search Trees (#954) 
* Wrote most of an rbt, missing just removal

* Added some convenience methods.

* Added a color method

* Wrote code to delete, but has issues :(

* Fixed a bug in Red-Black trees

* Fixed bug in tree color validation and delete repairing

* Clean up == comparison to None
 2019-07-05 14:13:16 +05:30
Hector S
05e5172093 .vs/ directory, matrix_multiplication_addition file and binary tree directory (#894) 
* 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
 2019-06-11 19:24:53 +08:00