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746 Commits

Author SHA1 Message Date
Oleksii Trekhleb
bdf8a174eb Improve Trie test coverage back to 100%. 2018-08-27 15:54:55 +03:00
Oleksii Trekhleb
4104155182 Simplify deletion method of TrieNode. 2018-08-27 15:45:48 +03:00
Oleksii Trekhleb
a7ffba157c Extend Trie and TrieNode tests. 2018-08-27 15:38:50 +03:00
Kevin Brewer
d25eff49e6 Add Trie.deleteWord and TrieNode.removeChild (#181) 2018-08-27 15:33:16 +03:00
Oleksii Trekhleb
6e2ff9b604 Add comments to Trie "add" method. 2018-08-25 13:34:05 +03:00
Kevin Brewer
eac3e81a21 Fix TrieNode.addChild so substrings get marked as complete words (#177) 2018-08-25 13:27:44 +03:00
Oleksii Trekhleb
20b0c48e84 Add comments to Stack code. 2018-08-22 07:49:22 +03:00
Oleksii Trekhleb
571d9312cd Fix trie's doesWordExists method. 2018-08-21 23:03:04 +03:00
Oleg
392cd9806d Fix method Trie::doesWordExist() (#175) 
Method Trie::doesWordExist() return `true` when word is complete otherwise `false`
 2018-08-21 23:00:11 +03:00
Oleksii Trekhleb
5eb1195c61 Add backtracking solution for finding the power-set of a set. 2018-08-21 16:55:26 +03:00
Oleksii Trekhleb
bffacf0707 Add nQueens bitwise solution. 2018-08-20 18:12:56 +03:00
Oleksii Trekhleb
20159312be Move nQueens bitwise version to the same folder with nQueens algorithm. 2018-08-20 15:59:37 +03:00
Matej Jellus
18ba3a4db3 Add N queens problem bitwise solution (#15) 
* Add N queens problem bitwise solution

* Update code to corespond with eslint
 2018-08-20 15:57:01 +03:00
Oleksii Trekhleb
5a57c5f018 Add comments to Queue class. 2018-08-17 18:00:20 +03:00
Oleksii Trekhleb
5eea37837f Add annotations to Queue. 2018-08-17 17:47:29 +03:00
Oleksii Trekhleb
260f24b2cb Update Bits Operations README. 2018-08-17 10:41:18 +03:00
Oleksii Trekhleb
ecfc287927 Update Bits Operations README. 2018-08-17 10:36:47 +03:00
Oleksii Trekhleb
983492115d Fix tests. 2018-08-17 10:31:18 +03:00
Oleksii Trekhleb
a02d5f625d Move common Max/Min Heap code to Heap.js. 2018-08-17 10:23:07 +03:00
Oleksii Trekhleb
031c5da556 Refactor Heaps. 2018-08-16 21:03:32 +03:00
Oleksii Kersov
10e633f075 Add MaxHeap (#167) 
* Add MaxHeap

* Add parent class for MinHeap and MaxHeap
 2018-08-16 18:18:19 +03:00
Oleksii Trekhleb
6e63a0548e Add Inverse Discrete Fourier Transform. 2018-08-16 13:14:40 +03:00
Oleksii Trekhleb
351a745f55 Refactor DFT and add common tests for Fourier. 2018-08-16 12:37:06 +03:00
Oleksii Trekhleb
13ed5061a3 Update FFT tests. 2018-08-15 17:47:32 +03:00
Oleksii Trekhleb
c2f7e49f07 Fix README for Fourier transform. 2018-08-15 13:40:16 +03:00
Oleksii Trekhleb
d736b2f355 Style fixes for FFT code. 2018-08-15 13:32:09 +03:00
Oleksii Trekhleb
ac9920a0f3 Style fixes for FFT code. 2018-08-15 13:27:50 +03:00
Oleksii Trekhleb
a88c45a329 Fix typos. 2018-08-15 13:00:04 +03:00
Oleksii Trekhleb
12d649e372 Implement Discrete Fourier Transform function. 2018-08-15 12:56:23 +03:00
Oleksii Trekhleb
53a0b6168d Fix bug with converting complex number into polar form. 2018-08-15 12:55:35 +03:00
Oleksii Trekhleb
4bdac18ae0 Add polar form of complex number to README. 2018-08-14 23:19:30 +03:00
Oleksii Trekhleb
d0c4baf7b3 Add DFT. 2018-08-14 23:12:17 +03:00
Oleksii Trekhleb
8e66189eff Update Fourier README. 2018-08-14 23:03:07 +03:00
Oleksii Trekhleb
e252eb631d Add polar representation of complex numbers. 2018-08-14 22:56:13 +03:00
Oleksii Trekhleb
096d5a8b5b Add Radian. 2018-08-14 22:31:13 +03:00
Oleksii Trekhleb
b3315966e5 Refactor complex numbers. 2018-08-14 21:30:57 +03:00
Oleksii Trekhleb
7d6854489e Merge branches 'fourier' and 'master' of https://github.com/trekhleb/javascript-algorithms into fourier 2018-08-14 17:45:56 +03:00
Oleksii Trekhleb
b0c9057cdb Fix pseudocode formatting. 2018-08-14 15:46:58 +03:00
Moshe
b6ac765c99 Pseudocode + big O for BFS (#166) 2018-08-14 15:21:34 +03:00
Moshe
953eaf8970 Update README.md (#165) 
Add Pseudocode and Big O
 2018-08-14 15:20:54 +03:00
Moshe
7207bcefb2 Update README.md (#164) 
Add Pseudocode for Doubly Linked List
 2018-08-14 15:20:09 +03:00
Moshe
5667cfb550 Update README.md (#163) 
fix verbiage
 2018-08-14 15:18:55 +03:00
Oleksii Trekhleb
29fb0c7055 Rename variables. 2018-08-13 18:09:46 +03:00
Oleksii Trekhleb
8ea35a5549 Merge branch 'master' of https://github.com/trekhleb/javascript-algorithms into fourier 2018-08-13 18:08:07 +03:00
Oleksii Trekhleb
9111568fc0 Add bits counter function. 2018-08-13 18:06:48 +03:00
Oleksii Trekhleb
7d3115edaa Use existing complex numbers implementation for Fourier. 2018-08-13 17:57:17 +03:00
Prateek Karnal
6f10b0e10f Added Fast Fourier transform (#135) 
* Added Fast fourier transform

* Adding DFT explanation

* Added tests for Fast Fourier transform

* Fixed some comments
 2018-08-13 17:45:50 +03:00
Oleksii Trekhleb
3c37ba4424 Add bitsDiff function. 2018-08-13 11:02:58 +03:00
Tapasweni Pathak
2361e6fc44 Add countBitsToflipAToB (#154) 2018-08-13 10:52:29 +03:00
Oleksii Trekhleb
6c9641aa3d Add pseudocodes to LinkedList. 2018-08-13 10:41:06 +03:00
Oleksii Trekhleb
f6c091bcb1 Add pseudocodes to LinkedList. 2018-08-13 10:38:19 +03:00
Moshe
02b70d95d6 Update README.md (#162) 
Add Pseudocode and Big O notation
 2018-08-13 10:30:49 +03:00
Oleksii Trekhleb
37c7be15e9 Add bit counter function. 2018-08-12 10:18:32 +03:00
Oleksii Trekhleb
9ce137cef8 Add bit counter function. 2018-08-12 10:16:12 +03:00
Tapasweni Pathak
a8f7d6a333 Add countSetBits (#152) 2018-08-12 10:06:13 +03:00
Oleksii Trekhleb
70ec623cbf Add ComplexNumber. 2018-08-11 15:58:19 +03:00
Oleksii Trekhleb
46b13f04fd Update BitWise Operation README. 2018-08-10 18:22:06 +03:00
Oleksii Trekhleb
7f189498cf Update BitWise Operation README. 2018-08-10 18:19:58 +03:00
Ujjwal Aryal
3f963ccc21 Update README.md (#141) 2018-08-10 18:16:39 +03:00
Oleksii Trekhleb
50c025949b Refactor bitwise multiplication. 2018-08-10 18:14:39 +03:00
Ujjwal Aryal
53c7143e07 Create multiply.js (#140) 
Multiply Two numbers using Bit-wise Operator.
 2018-08-10 17:39:45 +03:00
Oleksii Trekhleb
ff4854e0b8 Simplify PolynomialHash function. 2018-08-09 16:04:59 +03:00
Oleksii Trekhleb
51f496ce2e Add SimplePolynomialHash function. 2018-08-09 15:46:22 +03:00
Oleksii Trekhleb
d5be477bd8 Add Polynomial Hash function. 2018-08-09 15:12:36 +03:00
Oleksii Trekhleb
98a44ea832 Added Polynomial Hash Function. 2018-08-09 07:24:31 +03:00
Oleksii Trekhleb
b3a503aa6d Add unicode based tests for RabinKarp. 2018-08-09 06:10:47 +03:00
Oleksii Trekhleb
e7d22b4883 Use '===' for double check string comparision in RabinKarp. 2018-08-09 06:05:09 +03:00
Oleksii Trekhleb
d303d83673 Use rolling hash function for RabinKarp. 2018-08-09 05:57:53 +03:00
Oleksii Trekhleb
650e3099e5 Merge branches 'issue-102-rabin-karp-fix' and 'master' of https://github.com/trekhleb/javascript-algorithms into issue-102-rabin-karp-fix 2018-08-06 16:55:01 +03:00
Oz Weiss
7c9601df3e Update combinationSum.js (#137) 
fixing a few typos in comments
 2018-08-06 16:40:23 +03:00
Diego Paiva
941feda305 Fix kruskal's exception message for directed graph (#138) 2018-08-06 16:26:22 +03:00
Oleksii Trekhleb
88bbfdc470 Add fromArray() methods to LinkedList and DoublyLinkedList. 2018-08-06 16:12:31 +03:00
Simon
0ea24230d4 Patch 5 (#127) 
* New function 'fromArray'

Function get array of Doubly Linked List Nodes, go through and append to currently list.

* New Test for new function 'fromArray'

* Minor changes

Minor changes about coding style.
 2018-08-06 16:02:46 +03:00
Oleksii Trekhleb
7a4b829abe Fix issue #132 - Wrong Red-Black Tree pictures in README. 2018-08-02 16:43:54 +03:00
Oleksii Trekhleb
ecc8c65466 Add comments to Linked List code. 2018-07-30 15:38:04 +03:00
Oleksii Trekhleb
97926b1243 Add comments to Linked List code. 2018-07-30 15:35:28 +03:00
seIncorp
5105898aa7 Twice defined (#124) 
* Twice defined

Parameter 'deletedTail' were defined twice.

* Update LinkedList.js

* Update LinkedList.js
 2018-07-30 15:33:17 +03:00
Oleksii Trekhleb
6e897a0a7a Minor README updates. 2018-07-30 14:18:56 +03:00
Bruce-Feldman
c4605ea13d Refactor Rabin-Karp (#110) 
* Simplify Rabin-Karp functionality

* Created Rabin Fingerprinting module within util directory

* Updated Rabin-Karp search to use rolling hash module
Incorporate tests from @dubzzz
 2018-07-30 12:20:40 +03:00
Oleksii Trekhleb
305e30357c Add comments to HashTable hash function. 2018-07-29 08:28:03 +03:00
Oleksii Trekhleb
f1152bf4b4 Update README for Trapping Rain Water problem. 2018-07-27 14:11:33 +03:00
Oleksii Trekhleb
26239f9a97 Refactor dynamic programming approach of Trapping Rain Water problem. 2018-07-27 14:06:58 +03:00
Oleksii Trekhleb
f07e96ec59 Refactor dynamic programming approach of Trapping Rain Water problem. 2018-07-27 14:04:37 +03:00
Oleksii Trekhleb
340a71b7d9 Add brute force solution of Rain Terraces problem. 2018-07-27 13:40:07 +03:00
Oleksii Trekhleb
6fc429975f Add Rain Terraces problem. 2018-07-27 13:00:24 +03:00
Oleksii Trekhleb
3271ee92b9 Add Rain Terraces problem. 2018-07-27 12:59:56 +03:00
Keoni Garner
f142ca00b2 Add rain-terraces (trapping rain water) algorithm (#112) 
* Add rain-terraces (trapping rain water) algorithm

* Fixed linting errors

* Fixed linting errors
 2018-07-27 12:25:15 +03:00
Oleksii Trekhleb
80e3216609 Add annotations to Trie. 2018-07-26 18:02:34 +03:00
Oleksii Trekhleb
39acb2b65d Avoid using toBeTruthy() and toBeFalsy() because of type coercion. 2018-07-26 16:14:26 +03:00
Oleksii Trekhleb
39014f7543 Fix issue #105. 2018-07-24 12:37:55 +03:00
Oleksii Trekhleb
12f0b331b8 Add more tests for rabinKarp. 2018-07-24 12:29:12 +03:00
Nicolas DUBIEN
0361fe5cf8 Fix knuthMorrisPratt for empty word request (#101) 2018-07-24 12:26:22 +03:00
Oleksii Trekhleb
6a3a4b8697 Add new test cases for KMP algorithm. 2018-07-23 18:00:54 +03:00
Oleksii Trekhleb
76c172b20b Code style fixes for negative Counting Sort testing. 2018-07-22 18:23:39 +03:00
Nicolas DUBIEN
3be02b5519 Fix CountingSort for negative numbers (#100) 2018-07-22 18:03:13 +03:00
Oleksii Trekhleb
149444b47c Add Interpolation Search. 2018-07-18 14:35:02 +03:00
Oleksii Trekhleb
31344fa6a2 Add tests for Jump Search. 2018-07-18 12:03:21 +03:00
Oleksii Trekhleb
a327b68a06 Add Jump Search algorithm. 2018-07-18 09:21:20 +03:00
Oleksii Trekhleb
b73ddec94d Add Pascal's Triangle based solution for Unique Paths problem. 2018-07-14 11:08:19 +03:00
Oleksii Trekhleb
d8fb6579b1 Add Unique Paths problem with backtracking and DP solutions. 2018-07-14 10:35:35 +03:00
Oleksii Trekhleb
863dbdbac3 Fix issue #98. 2018-07-13 17:48:27 +03:00
Oleksii Trekhleb
fafa52c26e Refactor Floyd-Warshall tests. 2018-07-13 17:36:39 +03:00
Oleksii Trekhleb
2874637d40 Refactor Floyd-Warshall tests. 2018-07-13 17:05:21 +03:00
Oleksii Trekhleb
dca7f6f874 Refactor Floyd-Warshall. 2018-07-13 16:56:33 +03:00
Oleksii Trekhleb
994ac2781a Update Floyd-Warshall READMEs. 2018-07-13 15:02:58 +03:00
vivaxy
9f8fd33202 feat(algorithms): ✨Add Floyd-Warshall (#97) 2018-07-13 14:23:47 +03:00
Oleksii Trekhleb
3e8540beac Add Jump Game. 2018-07-10 08:17:52 +03:00
Oleksii Trekhleb
549759757d Add bottom-up dynamic programming solution to Jump Game. 2018-07-10 07:56:28 +03:00
Oleksii Trekhleb
57c2a334ce Add top-down dynamic programming solution to Jump Game. 2018-07-10 07:37:29 +03:00
Oleksii Trekhleb
b71a2ebe9e Change naming for Jump Game files. 2018-07-10 07:23:25 +03:00
Oleksii Trekhleb
df17e29fb7 Add backtracking solution to JumpGame. 2018-07-10 07:15:36 +03:00
Oleksii Trekhleb
aacd7795d6 Add greedy solution for Jump Game. 2018-07-09 18:00:09 +03:00
Oleksii Trekhleb
e47ca45b7a Add greedy solution for Jump Game. 2018-07-09 17:59:36 +03:00
Oleksii Trekhleb
afbdb89101 Update heap documentation. 2018-07-08 04:29:12 +03:00
Correy Lim
a3d099003d Improve data-structures/heap/README.md (#94) 
* Update data-structure/heap/README.md

The overuse of parenthesis in the previous description made the
explanation of a heap more diffcult to read. Following technical
writing standards, the topic of the sentence should be at the
forefront of a sentence, to give the reader an idea of what is
going to be explained in said sentence.

The mention of min heap and max heap were previously in parenthesis, in
the middle of the sentence. This change informs the reader that there
are two types of heaps, with a preface indicating which one is being
explained.

* Add min heap picture and move max heap picture

Add a picture of a min heap below the explanation of a min heap.
Move the picture of a max heap below the explanation of a max heap.

* Italicize heap terminology

Italicize the terms 'max heap' and 'min heap' to make it clear to readers that new terminology is being introduced
 2018-07-08 04:27:06 +03:00
Oleksii Trekhleb
b87839062a Add Pascal's triangle. 2018-07-07 11:11:20 +03:00
Oleksii Trekhleb
f3189cca43 Add Pascal's triangle. 2018-07-07 10:35:37 +03:00
Oleksii Trekhleb
bb86b30dda Code style fixes for matrix rotation algorithm. 2018-07-06 12:02:42 +03:00
Oleksii Trekhleb
57378c5e19 Update matrix rotation README. 2018-07-06 11:52:34 +03:00
Oleksii Trekhleb
75133592bb Add square matrix rotation in-place algorithm. 2018-07-06 08:15:56 +03:00
Oleksii Trekhleb
17ad4dc4d1 Upgrade packages. 2018-07-05 16:30:00 +03:00
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
Oleksii Trekhleb
70af57f11d Add Tarjan's algorithm. 2018-05-10 16:28:44 +03:00
Oleksii Trekhleb
5f3588ee59 Add Tarjan's algorithm. 2018-05-10 16:12:24 +03:00
Oleksii Trekhleb
5f50bd9bb2 Add degree property to GraphVertex. 2018-05-09 09:35:34 +03:00
Oleksii Trekhleb
e73dc2dfd7 Add topological sorting. 2018-05-08 19:27:42 +03:00
Oleksii Trekhleb
fc53c7de5d Add Kruskal. 2018-05-07 13:53:13 +03:00
Oleksii Trekhleb
cad8ccd9bb Add Prim. 2018-05-07 12:45:10 +03:00
Oleksii Trekhleb
50df3bf717 Update Graph. 2018-05-07 11:06:37 +03:00
Oleksii Trekhleb
ddf149b0d8 Update README. 2018-05-06 22:18:09 +03:00
Oleksii Trekhleb
eec2df994c Add detect cycle. 2018-05-06 17:57:45 +03:00
Oleksii Trekhleb
d0504fdbb0 Add detect cycle. 2018-05-05 10:58:04 +03:00
Oleksii Trekhleb
20bc442dcf Add detect cycle. 2018-05-05 10:05:09 +03:00
Oleksii Trekhleb
97f8bd3a9f Add DFS. 2018-05-04 16:56:06 +03:00
Oleksii Trekhleb
47ac5fcd70 Add detect cycle. 2018-05-04 07:04:37 +03:00
Oleksii Trekhleb
843893e8e7 Add disjoint set. 2018-05-04 06:18:05 +03:00
Oleksii Trekhleb
2e76caa9d6 Add disjoint set. 2018-05-03 16:49:46 +03:00
Oleksii Trekhleb
de5b771b4b Add Bellman-Ford. 2018-05-03 12:37:17 +03:00
Oleksii Trekhleb
5788575718 Add Bellman-Ford. 2018-05-03 09:58:00 +03:00
Oleksii Trekhleb
c97e472db7 Add Dijkstra. 2018-05-03 06:54:51 +03:00
Oleksii Trekhleb
ce7a4a930f Add Dijkstra. 2018-05-03 06:47:09 +03:00
Oleksii Trekhleb
8b057b10d0 Make it possible to change priority of PriorityQueue. 2018-05-03 06:34:32 +03:00
Oleksii Trekhleb
9c1b8e48fd Make it possible to remove from Heap. 2018-05-02 21:22:12 +03:00
Oleksii Trekhleb
c0fe2a3f16 Update Heap. 2018-05-02 20:41:13 +03:00
Oleksii Trekhleb
59f61dc132 Add dijkstra. 2018-05-02 08:15:20 +03:00
Oleksii Trekhleb
b128f20443 Add maximum subarray. 2018-05-01 11:16:08 +03:00
Oleksii Trekhleb
78be86771f Add integer partition. 2018-04-30 18:01:42 +03:00
Oleksii Trekhleb
542f2ad2bd Add integer partition. 2018-04-30 18:00:17 +03:00
Oleksii Trekhleb
0ce85ce15f Add knapsack problem. 2018-04-30 14:08:14 +03:00
Oleksii Trekhleb
d20d0c8d4f Add knapsack problem. 2018-04-30 12:37:12 +03:00
Oleksii Trekhleb
1c3cecf318 Add knapsack problem. 2018-04-30 08:53:49 +03:00
Oleksii Trekhleb
817ad9de2c Add knapsack problem. 2018-04-30 08:52:48 +03:00
Oleksii Trekhleb
80433eb36f Add knapsack problem. 2018-04-27 17:31:04 +03:00
Oleksii Trekhleb
1dd67ab911 Update packages. 2018-04-27 09:05:35 +03:00
Oleksii Trekhleb
e30d50e5c2 Update packages. 2018-04-27 09:04:45 +03:00
Oleksii Trekhleb
c9089bb5f3 Add SCS. 2018-04-27 08:19:11 +03:00
Oleksii Trekhleb
626eb8a746 Add longest increasing subsequence. 2018-04-26 15:49:52 +03:00
Oleksii Trekhleb
15e798c130 Update README. 2018-04-26 08:08:13 +03:00
Oleksii Trekhleb
c62a6ceabf Restructure folders. 2018-04-26 07:26:12 +03:00
Oleksii Trekhleb
9bef8de6b1 Add LCS. 2018-04-26 07:03:59 +03:00
Oleksii Trekhleb
fd898812f3 Add BFS and DFS for tree. 2018-04-25 17:41:21 +03:00
Oleksii Trekhleb
85585769ea Add BFS and DFS for tree. 2018-04-25 17:35:44 +03:00
Oleksii Trekhleb
bf24ea3316 Add LCS. 2018-04-25 15:36:05 +03:00
Oleksii Trekhleb
0e46d3e164 Add Rabin. 2018-04-24 22:51:45 +03:00
Oleksii Trekhleb
59548c624f Add Rabin. 2018-04-24 22:51:01 +03:00
Oleksii Trekhleb
f9a8c881cc Add Rabin. 2018-04-24 21:36:47 +03:00
Oleksii Trekhleb
4afc8c759a Add knuth. 2018-04-24 17:53:29 +03:00
Oleksii Trekhleb
9081de3ded Update README. 2018-04-24 15:41:06 +03:00
Oleksii Trekhleb
66ebd7859a Add Hamming. 2018-04-24 14:45:55 +03:00
Oleksii Trekhleb
8dd0c14af1 Add Levenshtein. 2018-04-24 07:54:38 +03:00
Oleksii Trekhleb
075fe39f5a Add Levenshtein. 2018-04-24 06:41:16 +03:00
Oleksii Trekhleb
cb14892e4e Add combinations. 2018-04-23 09:38:46 +03:00
Oleksii Trekhleb
0af06d601b Add combinations. 2018-04-23 08:35:03 +03:00
Oleksii Trekhleb
a3697c56fd Add combinations. 2018-04-21 09:24:16 +03:00
Oleksii Trekhleb
3e5e78d291 Add factorial. 2018-04-18 13:07:50 +03:00
Oleksii Trekhleb
a10009df64 Add factorial. 2018-04-18 13:05:07 +03:00
Oleksii Trekhleb
77e897b3b9 Add factorial. 2018-04-18 13:04:05 +03:00
Oleksii Trekhleb
4434e96413 Add permutations and combinations. 2018-04-17 20:28:35 +03:00
Oleksii Trekhleb
21999cc9d1 Add permutations and combinations. 2018-04-17 19:39:44 +03:00
Oleksii Trekhleb
91457191b1 Add lcm. 2018-04-17 09:28:15 +03:00
Oleksii Trekhleb
e63709a271 Add Fisher-Yates. 2018-04-17 08:34:20 +03:00
Oleksii Trekhleb
4fc5483892 Add primality tests. 2018-04-17 08:02:06 +03:00
Oleksii Trekhleb
54f6aadec4 Add primality tests. 2018-04-16 22:19:06 +03:00
Oleksii Trekhleb
5699738b9b Add primality tests. 2018-04-16 22:18:05 +03:00
Oleksii Trekhleb
f724bd5353 Add primality tests. 2018-04-16 22:09:41 +03:00
Oleksii Trekhleb
81ca672f5a Update README. 2018-04-16 22:03:10 +03:00
Oleksii Trekhleb
fafce27768 Add binary search. 2018-04-16 19:30:29 +03:00
Oleksii Trekhleb
c7110be47e Add quick sort. 2018-04-15 08:42:01 +03:00
Oleksii Trekhleb
c8becaf299 Add quick sort. 2018-04-15 06:30:45 +03:00
Oleksii Trekhleb
f29bcabffb Add merge sort. 2018-04-14 22:39:37 +03:00
Oleksii Trekhleb
21ce9719d9 Add merge sort. 2018-04-14 12:09:25 +03:00
Oleksii Trekhleb
ed2abde623 Add merge sort. 2018-04-14 11:48:33 +03:00
Oleksii Trekhleb
b17ba61348 Add heap sort. 2018-04-14 10:33:03 +03:00
Oleksii Trekhleb
36bbfed6a1 Add heap sort. 2018-04-14 10:29:36 +03:00
Oleksii Trekhleb
053b365f24 Add README. 2018-04-14 09:59:33 +03:00
Oleksii Trekhleb
8efebc1715 Add README. 2018-04-14 09:55:46 +03:00
Oleksii Trekhleb
0fac790e1b Add README. 2018-04-14 09:52:04 +03:00
Oleksii Trekhleb
781d5224e0 Add README. 2018-04-14 09:43:09 +03:00
Oleksii Trekhleb
3fad3735db Add README. 2018-04-14 09:39:36 +03:00
Oleksii Trekhleb
248f1bc3a8 Add README. 2018-04-14 09:36:15 +03:00
Oleksii Trekhleb
a7322a88eb Add README. 2018-04-14 09:33:38 +03:00