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Author SHA1 Message Date
Erfan Alimohammadi c4d16820bc Fix typo (#806) 2019-05-14 21:45:53 +04:30
Tommy.Liu 3c40fda6a3 More elegant coding for merge_sort_fastest (#804) 
* More elegant coding for merge_sort_fastest

* More elegant coding for merge_sort
 2019-05-14 18:17:25 +08:00
Ravi Patel 70bb6b2f18 Added Huffman Coding Algorithm (#798) 2019-05-13 10:45:27 +05:30
Bhushan Borole 3f7bec6c00 Added page-rank algorithm implementation (#780) 
* Added page-rank algorithm implementation

* changed init variables
 2019-05-12 19:46:47 +08:00
Anup Kumar Panwar d8badcc6d5 Update README.md 2019-05-12 09:10:56 +05:30
Julien Castiaux 36828b106f [FIX] maths/PrimeCheck (#796) 
Current implementation is buggy and hard to read.

* Negative values were raising a TypeError due to `math.sqrt`
* 1 was considered prime, it is not.
* 2 was considered not prime, it is.

The implementation has been corrected to fix the bugs and to enhance
readability.

A docstring has been added with the definition of a prime number.

A complete test suite has been written, it tests the 10 first primes, a
negative value, 0, 1 and some not prime numbers.

closes #795
 2019-05-11 19:20:25 +08:00
Junth Basnet 56513cb21f add-binary-exponentiation (#790) 2019-05-10 19:03:05 +08:00
Lorenz Nickel 30a3582983 fix: replaced outdated url (#791) 
http://www.lpb-riannetrujillo.com/blog/python-fractal/ moved to http://www.riannetrujillo.com/blog/python-fractal/
 2019-05-09 03:48:30 +08:00
weixuanhu 7677c37011 update 'sorted' to 'ascending sorted' in comments (#789) 
To avoid confusion all 'sorted' to 'ascending sorted' in comments
 2019-05-06 17:54:31 +08:00
Anup Kumar Panwar e22ea7e380 Update Directed and Undirected (Weighted) Graph.py 2019-05-04 21:53:06 +05:30
Anup Kumar Panwar c5c3a74f8f Update README.md 2019-05-04 15:43:37 +05:30
yolstatrisch 7b89d03dd7 Added an O(1) solution to problem 002 (#776) 
* Added an O(1) solution to problem 002

* Removed comments from sol3.py that were accidentally added to sol4.py
 2019-05-02 00:44:21 +08:00
Gattlin Walker 06dbef04a0 Adding quick sort where random pivot point is chosen (#774) 2019-04-30 21:16:42 +08:00
sakuralethe 48553da785 variable in function should be lowercase (#768) 2019-04-26 17:43:51 +08:00
Viraat Das 2fc2ae3f32 Created a generalized algo to edmonds karp (#724) 
Edmonds Karp algorithm is traditionally with only one source and one sink. What do you do if you have multiple sources and sinks? This algorithm is a generalized algorithm that regardless of however many sinks and sources you have, will allow you to use this algorithm. It does this by using the traditional algorithm but adding an artificial source and sink that allows with "infinite" weight.
 2019-04-25 19:48:14 +08:00
Vysor df04d94543 Some directories had a capital in their name [fixed]. Added a recursive factorial algorithm. (#763) 
* Renaming directories
* Adding a recursive factorial algorithm
 2019-04-22 22:53:56 +08:00
John Law 48bba495ae Rename is_Palindrome to is_Palindrome.py (#752) 2019-04-20 15:13:02 +08:00
Sanders Lin a91f0e7ca0 Updated Euler problem 21 sol1.py 2019-04-19 21:30:40 +05:30
jfeng43 a170997eaf Add animation for heap sort 2019-04-19 21:01:06 +05:30
WILFRIED NJANGUI b2f1d9c337 implementation of tower_of_hanoi algorithm (#756) 2019-04-14 19:58:16 +08:00
Reshad Hasan 52d2fbf3cf Add lowest common ancestor to data structures (#732) 
* add longest common ancestor in data structures

* add lowest common ancestor to data structures
 2019-04-10 23:59:49 +08:00
rohan11074 137871bfef feature to add input (#749) 2019-04-07 23:55:32 +08:00
Ahish 56de3df784 Update basic_binary_tree.py (#748) 2019-04-07 23:53:50 +08:00
Ishani 15bc87fb41 Create is_Palindrome (#740) 2019-04-04 16:40:11 +05:30
nowakowsky 5b7730bef1 Added Trafid Cipher (#746) 2019-04-04 03:27:36 +08:00
Aditya Haridas Menon bb29dc55fa Bitmasking and DP added (#705) 2019-03-28 01:59:31 +08:00
RayCurse 441b82a95f More matrix algorithms (#745) 
* added matrix minor

* added matrix determinant

* added inverse,scalar multiply, identity, transpose
 2019-03-28 01:50:43 +08:00
louisparis 8b8a6d881c reduce indentation (#741) 2019-03-28 01:46:46 +08:00
Ishani d27968b78d Create Searching in sorted matrix (#738) 
* Create Searching in sorted matrix

* Rename Searching in sorted matrix to searching_in_sorted_matrix.py
 2019-03-20 23:59:35 +08:00
Ishani 96c36f8286 added wiggle_sort.py (#734) 
* Wiggle_sort

* Rename Wiggle_Sort to wiggle_sort.py
 2019-03-18 02:12:22 +08:00
Maxim Semenyuk 8e67ac3b76 Fix '__bool__' method (#735) 
The method returns the truth when the stack is empty
 2019-03-10 07:40:29 +05:30
Akash Ali 2c67f6161c Update basic_binary_tree.py (#725) 
I have added the comments for better understanding.
 2019-03-07 23:53:29 +08:00
Akash Ali 6f6510623c Update heap.py (#726) 
Added comments for the better understanding of heap.
 2019-03-04 16:49:36 +08:00
Ashwek Swamy 88b6caa30a fixed balanced_parentheses, Added infix-prefix & postfix evaluation (#621) 
* Create infix_to_prefix_conversion.py

* Create postfix_evaluation.py

* Update balanced_parentheses.py
 2019-03-02 00:53:29 +08:00
Sanders Lin e6eb6dbb82 Delete Maths/find_hcf.py (#636) 2019-02-28 01:49:13 +08:00
overclockedllama dd9f0b3f2e fix comma spelling from coma to comma (#722) 2019-02-27 22:33:29 +08:00
S. Sharma 2bbf8cd109 Added extended euclidean algorithm (#720) 
* Added extended euclidean algorithm

* Fixed extended euclidean algorithm
 2019-02-27 22:28:59 +08:00
Reshad Hasan 9a44eb4479 Organize graph algorithms (#719) 
* organized graph algorithms

* all graph algorithms in Graphs/ folder

* all graph algorithms are in one folder

* Rename number theory/factorial_python.py to maths/factorial_python.py
 2019-02-25 17:35:24 +08:00
Reshad Hasan e6e5f4b301 Added naive string search algorithm (#715) 2019-02-23 22:18:21 +08:00
Sravan Kumar Vinakota 2b27086c00 Added hill_cipher.py (#696) 
A python class that implements the Hill cipher algorithm.
 2019-02-22 00:19:28 +08:00
Sanders Lin 74e94ab5e2 Create project Euler problem 25 sol2.py (#658) 2019-02-21 00:57:48 +08:00
pradyotd 98a149e41e Update coin_change.py (#706) 
Cleanup PEP-8 , additional comments , using coin_val, instead of range and index.
 2019-02-21 00:54:26 +08:00
Abhi Kampurath ad68eed73e Update caesar_cipher.py (#702) 2019-02-19 23:26:09 +08:00
Reshad Hasan af08a67b20 added the dijkstra algorithm (#704) 2019-02-18 23:35:46 +08:00
Vivek 6f283336ae Adding function for actual level order traversal (#699) 2019-02-17 00:16:43 +08:00
gpapadok 301493094e Update absMax.py (#602) 
* Update absMax.py

Fixed two bugs

* changed to abs instead of absVal
 2019-02-16 00:01:10 +08:00
Sanders Lin 3c8036432c Project Euler problem 6 solution 3 (#640) 2019-02-14 12:08:21 +08:00
Sanders Lin 9417091dab Update sol1.py (#643) 
small off by one error. Boundary condition: if len(number) =13 , we would need to check exactly 1 combination, namely number itself. However  for i in range(len(number)-13): will iterate 0 times.
 2019-02-13 18:02:32 +08:00
Sanders Lin 60418a6fd7 Create project Euler problem 8 sol2.py (#644) 
intuitive solution using functional programming
 2019-02-13 14:55:48 +08:00
Sanders Lin 02155def00 Create project Euler problem 9 sol3.py (#645) 2019-02-13 00:40:05 +08:00