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425 Commits

Author SHA1 Message Date
Oleksii Trekhleb
d0499d2544 Minor code style fixes for DoublyLinkedList. 2018-07-05 15:44:25 +03:00
Oleksii Trekhleb
a72fda4dfd Minor code style fixes for DoublyLinkedList. 2018-07-05 15:33:39 +03:00
Oleksii Trekhleb
6a5ed26bd2 Extend DoublyLinkedListNode tests. 2018-07-05 15:28:11 +03:00
Oleksii Trekhleb
a9eeea2ca8 Update doubly linked list README. 2018-07-05 15:25:51 +03:00
Huzaima Khan
6b354ad4ce Added doubly linked list (#92) 
* Added doubly linked list

* improved doubly linked list coverage
 2018-07-05 15:18:57 +03:00
Oleksii Trekhleb
fef2aa7691 Update README. 2018-07-04 18:09:55 +03:00
Bruce-Feldman
e36c441fa9 Minor fixes. (#91) 
* Get Bit: Make more terse

* Power of two: Allowed 1 as a valid power of 2.
Power of two: Removed unnecessary exception throwing.

* Fisher Yates: Made more terse

* Least Common Multiple: Fill undefined value

* Greatest Common Divisor: Fill undefined value.
Greatest Common Divisor: Make more terse.
 2018-07-04 17:53:22 +03:00
Oleksii Trekhleb
93bfe97e27 Add test cases for sorting negative numbers and zeros. 2018-07-03 12:06:00 +03:00
m-maksyutin
d82958dea9 Fix the insertion sort (#86) 
* Fix LinkedList

* Fix the prepend method for the LinkedList

* Fix the remove method for the MinHeap

* Correct a comment

* Fix BST removal method

* Fix the findEdge method of the graph

* Fix the value returned by DisjointSet union

* Add recursive factorial function

* Fix the insertion sort
 2018-07-03 11:56:34 +03:00
Oleksii Trekhleb
e3b482c5e6 Update bloom filters description. 2018-06-30 21:48:57 +03:00
Oleksii Trekhleb
a2310c59d3 Delete false positive tests for bloom filter. 2018-06-30 20:46:34 +03:00
Oleksii Trekhleb
610b120e27 BloomFilter minor fixes. 2018-06-30 20:39:46 +03:00
Oleksii Trekhleb
b33b1fe1bc Update bloom filter README. 2018-06-30 20:23:02 +03:00
arnav-aggarwal
41a6430532 Add bloom filter (#84) 2018-06-30 20:07:19 +03:00
Oleksii Trekhleb
b33f1d52dc Add "Combination Sum" backtracking algorithm. 2018-06-30 10:19:14 +03:00
Oleksii Trekhleb
b41cffea0f Add permutations/combinations cheat sheets. 2018-06-29 14:44:11 +03:00
Oleksii Trekhleb
00f75028bf Simplify permutateWithoutRepetitions algorithm. 2018-06-29 12:23:26 +03:00
Oleksii Trekhleb
db7ab9e299 Simplify permutateWithRepetitions algorithm. 2018-06-28 21:28:50 +03:00
m-maksyutin
c5ed81d85e Add recursive factorial function (#85) 
* Fix LinkedList

* Fix the prepend method for the LinkedList

* Fix the remove method for the MinHeap

* Correct a comment

* Fix BST removal method

* Fix the findEdge method of the graph

* Fix the value returned by DisjointSet union

* Add recursive factorial function
 2018-06-28 21:03:31 +03:00
Oleksii Trekhleb
65f08db5de Simplify combineWithRepetitions function. 2018-06-28 14:05:58 +03:00
Oleksii Trekhleb
e5a06e654b Simplify combineWithoutRepetitions function. 2018-06-28 13:46:26 +03:00
Oleksii Trekhleb
55ecc0b313 Fix typo. 2018-06-27 18:59:25 +03:00
Oleksii Trekhleb
933848b215 Add more bit manipulation functions. 2018-06-27 18:05:18 +03:00
Oleksii Trekhleb
c268203259 Add more bit manipulation functions. 2018-06-27 17:33:16 +03:00
Oleksii Trekhleb
792f4906df Add bit manipulation section. 2018-06-27 17:19:20 +03:00
m-maksyutin
36e0bfeb32 Fix the value returned by DisjointSet union (#81) 
* Fix LinkedList

* Fix the prepend method for the LinkedList

* Fix the remove method for the MinHeap

* Correct a comment

* Fix BST removal method

* Fix the findEdge method of the graph

* Fix the value returned by DisjointSet union
 2018-06-27 16:22:54 +03:00
Oleksii Trekhleb
d69199e658 Add regular expression matching algorithm. 2018-06-25 20:02:24 +03:00
Oleksii Trekhleb
c96bbdf00e Code style fix. 2018-06-25 14:34:40 +03:00
m-maksyutin
88d038b5c8 Fix the findEdge method of the graph (#80) 
* Fix LinkedList

* Fix the prepend method for the LinkedList

* Fix the remove method for the MinHeap

* Correct a comment

* Fix BST removal method

* Fix the findEdge method of the graph
 2018-06-25 14:33:31 +03:00
Oleksii Trekhleb
89fb0e6239 Add Levenshtein Distance algorithm explanations. 2018-06-23 20:59:59 +03:00
Oleksii Trekhleb
a9502851f5 Update READMEs. 2018-06-23 13:21:07 +03:00
Oleksii Trekhleb
619c58ec87 Update READMEs. 2018-06-22 15:34:32 +03:00
Oleksii Trekhleb
b65a992452 Update READMEs. 2018-06-22 15:04:28 +03:00
Amjad Ali
e53f5f909d Added Complexity of Each Algorithm in Sorting/ directory. (#76) 
* Added Complexity to Bubble Sort README.md

* Added Complexity to Counting-Sort README.md

* Italicized n in Bubble Sort README.md

* Added Complexity to Heap Sort README.md

* Added Complexity to Insertion Sort README.md

* Added Complexity to Merge Sort README.md

* Added Complexity to Quick Sort README.md

* Added Complexity to Radix Sort README.md

* Added Complexity to Selection Sort README.md

* Added Complexity to SHell Sort README.md
 2018-06-22 14:54:40 +03:00
Oleksii Trekhleb
831ce89a45 Update README for integer partition. 2018-06-22 14:50:38 +03:00
Nnadozie Okeke
16b6ea506a Corrected explanations and included an example (#75) 2018-06-22 14:31:57 +03:00
Oleksii Trekhleb
2334583635 Add setValue and nodeCopy methods to binary tree node. 2018-06-22 08:22:12 +03:00
m-maksyutin
bd5a16be71 Fix BST removal method (#74) 
* Fix LinkedList

* Fix the prepend method for the LinkedList

* Fix the remove method for the MinHeap

* Correct a comment

* Fix BST removal method
 2018-06-22 07:57:52 +03:00
Oleksii Trekhleb
e558231474 Add comments. 2018-06-21 17:59:31 +03:00
Oleksii Trekhleb
81d17bc4f9 Add comments. 2018-06-21 17:48:35 +03:00
Oleksii Trekhleb
5bdcbb397d Code style fixes. 2018-06-21 16:59:20 +03:00
hariv
9e210ae560 Z algorithm implementation (#77) 
* Implemented Z algorithm

* Fixed bugs in implementation and added tests

* Added README explaining z algorithm
 2018-06-21 16:42:13 +03:00
m-maksyutin
9311735867 Correct a comment (#66) 
* Fix LinkedList

* Fix the prepend method for the LinkedList

* Fix the remove method for the MinHeap

* Correct a comment
 2018-06-18 16:30:30 +03:00
Oleksii Trekhleb
98092ee43f Code style fixes. 2018-06-18 15:57:45 +03:00
Sina Sharafzadeh
8c206a9976 fix unbound knapsack problem with items more than 1(default value) (#73) 2018-06-18 15:50:02 +03:00
Oleksii Trekhleb
d154015cda Code style fixes. 2018-06-14 07:59:47 +03:00
Oleksii Trekhleb
19f4cc70d3 Add recursive way of generating permutations with repetitions. 2018-06-13 08:15:21 +03:00
Matt Mapplebeck
b0c55ec817 add recursive solution to permutations with repetitions problem (#52) 
* add recursive solution to permutations with repetitions problem

* fix untested function, failing test

* add comments
 2018-06-13 08:03:56 +03:00
Oleksii Trekhleb
8d3f83cfb7 Simplify combineWithoutRepetition algorithm. 2018-06-13 07:21:57 +03:00
Oleksii Trekhleb
c3a961840d Fix BST removal method. 2018-06-13 06:39:18 +03:00
Felix Rilling
5734e0a43e Fix typos (#59) 
* Fixed typo in the word 'independant'

* Fixed typo in the word 'subsequnce'

* Fixed typo in the word 'icecream'

* Fixed typo in the word 'subsequnce' in shortestCommonSubsequence

* Fixed typo in the word 'depected'

* Fixed typo in the word 'paramaters'
 2018-06-12 17:46:40 +03:00
Oleksii Trekhleb
c536aa2c51 Refactor liuHui. 2018-06-12 17:29:57 +03:00
Oleksii Trekhleb
1e2fdc6943 Refactor README. 2018-06-12 15:32:56 +03:00
mantou
7dc9b80f62 feat: Add Liu Hui's π algorithm (#61) 2018-06-12 14:54:00 +03:00
Oleksii Trekhleb
9de6bc7de3 Add more tests. 2018-06-08 16:54:07 +03:00
Oleksii Trekhleb
5ac85a230c Update READMEs. 2018-06-08 15:38:36 +03:00
Oleksii Trekhleb
294bd2acb7 Update READMEs. 2018-06-06 07:54:38 +03:00
Oleksii Trekhleb
00fbba5438 Update tests. 2018-06-06 07:49:12 +03:00
Oleksii Trekhleb
183dade079 Update Fenwick Tree readme and do code style fixes. 2018-06-06 07:41:28 +03:00
Christopher Samuel
1a4fe11a80 Added Binary Indexed Tree / Fenwick Tree Implementation (#51) 
* added fenwick tree implementation

* added fenwick tree implementation
 2018-06-06 06:25:31 +03:00
Oleksii Trekhleb
a1060c2a94 Merge branch 'master' of https://github.com/trekhleb/javascript-algorithms 2018-06-05 21:50:44 +03:00
Oleksii Trekhleb
6c892c4b2f Fix bug with primality test. 2018-06-05 21:50:08 +03:00
m-maksyutin
38688f25c5 Fix the remove method for the MinHeap (#50) 
* Fix LinkedList

* Fix the prepend method for the LinkedList

* Fix the remove method for the MinHeap
 2018-06-05 16:17:14 +03:00
Oleksii Trekhleb
9f83862212 Update README for segment tree. 2018-06-05 08:47:52 +03:00
Oleksii Trekhleb
434a5649cb Refactor segment tree implementation. 2018-06-05 08:45:00 +03:00
Oleksii Trekhleb
5784a4a95b Merge branch 'master' into segment-tree 2018-06-05 06:12:30 +03:00
Oleksii Trekhleb
74b93d36cb Add isPowerOfTwo functions. 2018-06-04 20:42:22 +03:00
Oleksii Trekhleb
c7610d58b1 Update README. 2018-06-04 06:57:33 +03:00
Vignesh Manoharan
2e5fd8d583 Segment Tree implementation (#45) 
* added segment tree implementation - supports custom operation

* added readme for segment tree
 2018-06-04 06:32:34 +03:00
m-maksyutin
beb8501aca Fix the prepend method for the LinkedList (#47) 
* Fix LinkedList

* Fix the prepend method for the LinkedList
 2018-06-04 05:21:42 +03:00
Oleksii Trekhleb
91d4714d19 Code styling fixes for Sieve of Eratosthenes. 2018-06-03 09:34:48 +03:00
Juan Pablo Valencia
943f83492a Adding Sieve of Eratosthenes (#46) 
* Adding Sieve of Eratosthenes

* Typo
 2018-06-03 09:25:15 +03:00
Oleksii Trekhleb
d2b8eabcf4 Update READMEs. 2018-06-02 22:21:59 +03:00
Oleksii Trekhleb
90b56bc3d3 Fix issue #37 with AVL tree. 2018-06-02 22:11:01 +03:00
Oleksii Trekhleb
924066bb0c Do minor optimisations to factorial function. 2018-06-02 09:40:32 +03:00
Oleksii Trekhleb
88bd8d7044 Add JSdocs for fibonacci. 2018-06-02 09:32:50 +03:00
Oliver Hepworth-Bell
d267d72524 Added fibonacci sequence as well as fibonacci nth, renamed functions accordingly (#36) 2018-06-02 09:31:09 +03:00
m-maksyutin
a63bc67cf4 Fix LinkedList (#42) 2018-06-02 09:23:55 +03:00
Oleksii Trekhleb
0edb1525ea Throw error on remove from red-black tree. 2018-06-02 08:51:45 +03:00
Oleksii Trekhleb
26d6b7877d Improve test-coverage for red-black tree. 2018-06-02 08:24:31 +03:00
Oleksii Trekhleb
19789c6a94 Add red-black tree. 2018-06-02 08:15:40 +03:00
Oleksii Trekhleb
48f7ea1ad5 Add one more test for BST. 2018-06-01 10:52:23 +03:00
Oleksii Trekhleb
4132522d4a Set up node comparator for BST. 2018-06-01 08:28:36 +03:00
Oleksii Trekhleb
02299b77e6 Add uncle property to binary tree node. 2018-06-01 05:16:07 +03:00
Oleksii Trekhleb
e6de25ecb3 Use HashTable in TrieNode. 2018-05-31 21:37:13 +03:00
Oleksii Trekhleb
5b3de38cca Update hash table methods. 2018-05-31 21:35:53 +03:00
Oleksii Trekhleb
ecd8d22fc6 Add new hash table methods. 2018-05-31 21:30:44 +03:00
Oleksii Trekhleb
f04626bc5c Return removed nodes in BST. 2018-05-31 08:29:59 +03:00
Oleksii Trekhleb
7a4265403c Use Map for node meta data. 2018-05-31 07:59:20 +03:00
Oleksii Trekhleb
e572de63cb Create getters and setters for meta data in binary tree node. 2018-05-31 07:37:31 +03:00
Oleksii Trekhleb
02d7abcf65 Make it possible to insert meta information to bst node. 2018-05-31 07:16:35 +03:00
Oleksii Trekhleb
33ac110cce Make it possible to attach meta information to binary tree node. 2018-05-31 07:03:33 +03:00
Oleksii Trekhleb
c18fd63a53 Fix naming in binary search tree test. 2018-05-31 06:23:51 +03:00
Oleksii Trekhleb
b62d9a43b4 Clean up in binary search tree constructor. 2018-05-30 08:18:45 +03:00
Oleksii Trekhleb
b7e27b2f07 Remove parent parameter from binary tree node constructor to simplify syntax. 2018-05-30 08:16:41 +03:00
Oleksii Trekhleb
fcc546347d Code style fixes. 2018-05-30 08:00:25 +03:00
Oleksii Trekhleb
8d868ae582 Code style fixes. 2018-05-30 07:47:49 +03:00
Oleksii Trekhleb
797a6f28a3 Make it possible to use objects as a values for binary search tree nodes. 2018-05-30 07:43:39 +03:00
Oleksii Trekhleb
3ae9c40416 Test that it is possible to use objects and binary tree node values. 2018-05-30 07:19:48 +03:00
Oleksii Trekhleb
625217a9c2 Code style fixes. 2018-05-29 11:19:08 +03:00
Oleksii Trekhleb
caec97e562 Add Radix Sort illustration. 2018-05-29 09:43:23 +03:00
Oleksii Trekhleb
afd5617144 Code style fixes for RadixSort. 2018-05-29 09:01:16 +03:00
Robert Taussig
71985337b5 Radix sort (#28) 
* Add in-place sort to QuickSort.js

* Fix linting errors and clean up comments

* Change implementation to address lint errors

* Trailing space and undefined variable

* Create own class for in-place quicksort and use tests

* Add trailing space at end of file

* Fix placement of visitedCallback, explain itial destructuring

* Implement Radix Sort

Remove excess line

Reorganize RadixSort of match structure of other classes

Write tests for RadixSort and additional test constants

Create README

Update main readme to include radix sort
 2018-05-29 07:38:19 +02:00
Oleksii Trekhleb
0c1f6851d5 Add counting sort. 2018-05-29 07:29:28 +03:00
Cyril Auburtin
b1a613e03e Use Map for TrieNode children (#27) 2018-05-29 05:13:12 +02:00
Oleksii Trekhleb
30ae3230d1 Do some code formatting on QuickSort algorithm. 2018-05-27 22:23:40 +02:00
Robert Taussig
bf5d7b338c Add in-place sort to QuickSort.js (#16) 
* Add in-place sort to QuickSort.js

* Fix linting errors and clean up comments

* Change implementation to address lint errors

* Trailing space and undefined variable

* Create own class for in-place quicksort and use tests

* Add trailing space at end of file

* Fix placement of visitedCallback, explain itial destructuring
 2018-05-27 23:11:13 +03:00
Federico Bozzini
f93d12d5dd Added missing return type (#23) 2018-05-27 18:20:04 +03:00
Oleksii Trekhleb
2e3860f357 Add linear search. 2018-05-26 01:01:08 +03:00
ak4522912
7ed425ed3a Added Linear Search (#20) 
Added algorithm for the basic and useful linear search
 2018-05-26 00:43:50 +03:00
Oleksii Trekhleb
f696d028ba Merge branch 'master' of https://github.com/trekhleb/javascript-algorithms 2018-05-24 16:48:41 +03:00
Oleksii Trekhleb
5503cced48 Don't treat 1 as prime number. 2018-05-24 16:48:10 +03:00
Tomáš Hübelbauer
41d11f2b6e
Fix a typo 2018-05-24 13:00:49 +02:00
Albert Still
56b42ae79c
Merge branch 'master' into improve-bubble-sort 2018-05-24 16:12:13 +10:00
Oleksii Trekhleb
114748b876 Refactor peek function in Stack. 2018-05-24 09:10:48 +03:00
Albert Still
5638e66166 Merge branch 'master' into improve-bubble-sort 2018-05-24 16:09:42 +10:00
Albert Still
d0ed0af42b stop bubble sort revisiting already sorted elements 2018-05-24 16:04:59 +10:00
Oleksii Trekhleb
297875e4fa
Merge branch 'master' into master 2018-05-24 09:04:50 +03:00
Oleksii Trekhleb
d596e1d485 Fix then > than typo. 2018-05-24 09:01:50 +03:00
Peter Shershov
f2aebe7ccb
improve readability in some sorting algorithms 2018-05-23 23:57:32 +03:00
redfast00
abf9c9c6a5
Corrected typo 2018-05-23 22:48:17 +02:00
Peter Shershov
488b7a4c0e
small refactor in bubble sort for better readablity 2018-05-23 23:37:14 +03:00
Oleksii Trekhleb
3e0ac7486c Use Infinity instead of zero in Graph adjacency matrix to show that vertices are not connected. 2018-05-22 07:10:46 +03:00
Oleksii Trekhleb
f966ef5d5d Update READMEs. 2018-05-21 21:48:35 +03:00
Oleksii Trekhleb
2185212527 Update READMEs. 2018-05-21 16:51:21 +03:00
Oleksii Trekhleb
ef72e2de79 Update READMEs. 2018-05-21 16:48:21 +03:00
Oleksii Trekhleb
a41e4a18b7 Update READMEs. 2018-05-21 16:39:54 +03:00
Oleksii Trekhleb
35476a2f3f Add travelling salesman problem. 2018-05-21 08:58:22 +03:00
Oleksii Trekhleb
476c0acb4a Add Knight's tour. 2018-05-17 17:48:06 +03:00
Oleksii Trekhleb
d2c6d14acd Add Hamiltonian cycle. 2018-05-17 08:08:29 +03:00
Oleksii Trekhleb
569c6ae452 Add Hamiltonian cycle. 2018-05-17 07:40:13 +03:00
Oleksii Trekhleb
0fc7b9d09d Generate adjacency matrix for graph. 2018-05-16 09:21:16 +03:00
Oleksii Trekhleb
f2f5162aeb Add N-Queens. 2018-05-16 07:59:50 +03:00
Oleksii Trekhleb
e2ef46016d Add N-Queens. 2018-05-16 07:54:06 +03:00
Oleksii Trekhleb
f8222ed397 Add Tower of Hanoi. 2018-05-14 11:28:56 +03:00
Oleksii Trekhleb
8c102a3f62 Add Tower of Hanoi. 2018-05-14 09:00:42 +03:00
Oleksii Trekhleb
44b0a99a80 Add Tower of Hanoi. 2018-05-14 08:56:44 +03:00
Oleksii Trekhleb
20d642b402 Add SCC. 2018-05-14 07:13:07 +03:00
Oleksii Trekhleb
0c2561197a Make it possible to reverse the graph. 2018-05-14 06:29:55 +03:00
Oleksii Trekhleb
ff8f9c49df Make it possible to delete all vertex edges at once. 2018-05-12 10:35:54 +03:00
Oleksii Trekhleb
4a6bc1e733 Add Eulerian Path. 2018-05-12 07:57:38 +03:00
Oleksii Trekhleb
e5a0b4ba0d Add Eulerian Path. 2018-05-12 07:54:14 +03:00
Oleksii Trekhleb
808a1e713f Make it possible to delete edge from graph. 2018-05-11 16:58:39 +03:00
Oleksii Trekhleb
cb48efee79 Make it possible to delete edge from graph vertex. 2018-05-11 16:50:18 +03:00
Oleksii Trekhleb
1af824f448 Make it possible to use custom comparators for linked lists. 2018-05-11 16:30:28 +03:00
Oleksii Trekhleb
670ec093f4 Add Tarjan's algorithm. 2018-05-11 15:42:42 +03:00
Oleksii Trekhleb
1dd480b906 Add Tarjan's algorithm. 2018-05-11 15:40:59 +03:00
Oleksii Trekhleb
25703c37ac Add Tarjan's algorithm. 2018-05-11 15:34:58 +03:00
Oleksii Trekhleb
21d4144e5a Add Tarjan's algorithm. 2018-05-11 07:42:02 +03:00
Oleksii Trekhleb
ff9877cf6b Add Tarjan's algorithm. 2018-05-11 06:58:19 +03:00